Attention buyers from the USA! Delivery times from Ukraine to the USA are only 10-12 business days! I accept orders 24/7 New adapter Minolta MD to Canon EF with programmable Dandelion chip original  4 generation. I recommend using this adapter for lenses with an aperture of f/2.0 or darker.  On lenses with an aperture lighter than f/2.0 (f/1.2; f/1.4; f/1.8 - slight blurring of the resulting image is possible.  Reason: the diameter of the rear glass of such lenses is larger than the diameter of the glass in this adapter. The chip has the functions: 1. Programming (the focal length and aperture are programmed into the chip). 2. The focus trap function (as long as there is no exact hit in the focus - the camera shutter will not work - this is the "autofocus in manual mode") 3. The adjusting confirmation point   function (if your lens has a back / front focus - the focus confirmation point can be shifted by +/- 17 steps 4. Stand-by function !!! (None of the Chinese EMF chip has this function). Without this function, the chip discharges the battery, even if the camera is turned off. What is in the box? 1. Minolta MD-Canon EF adapter with programmable dandelion chip original 2. Canon EF rear cap 3. Minolta MD mount cap BEST SERVICE BEFORE AND AFTER PURCHASE! This adapter is equipped with the focusing chip that works on all Canon cameras, including the newest models, including: Canon 5D mark IV, Canon 5D mark III, 5Ds, 5DsR, 1Dx, 1Dx mark II,  6D,   650D, 700D, 750D, 70D, 80D, 100D. I make the free programming of each chip . ( in the chip programmed focal length and aperture). I make a personal video clip to each buyer of the   adapter with chip, in this video clip I show completely programmed chip! all video recorded for buyers to look at my  YouTube channel:  Andrey Kuryanov This chip works on all of Canon SLR cameras, both of film and all digital Canon SLR models,  including  Canon 6D mark II, Canon 6D mark IV, Canon 5D mark III, 5Ds, 5DsR, 1Dx, 1Dx mark II, 650D, 700D, 750D, 70D, 80D, 100D,  and so on - everything! In the chip-dandelion, you can pre-program only one single value of the focal length and a single value of the aperture! During the shooting, these values in the dandelion chip do not change! These values can only be changed in the programming mode of the dandelion chip! The name of the lens is impossible to pre-program in a dandelion chip! Before buying an adapter with a dandelion chip, write to me the name of model your Canon camera and: 1. The name of the lens, for example:  Minolta MD 50 mm f/ 2.0 2. The focal length,   for example: 50 mm 3. The aperture ratio (the value of the most open aperture),   for example: f  2.0 All customers receive detailed instructions on programming the chip. Прежде, чем Вы сделаете заказ и оплатите его, напишите мне в личном сообщении: 1. Название Вашего объектива, например Olympus OM 50/1,4 2. Фокусное расстояние, которое нужно запрограммировать, например: 50 мм 3. Светосилу объектива (значение максимально открытой диафрагмы), например 1,4 Все покупатели получают подробную инструкцию по программированию чипа в письменном виде. Так-же я предоставляю видео-инструкцию по программированию. FAQ Canon Dandelion Chip: How does the metering What aperture will be displayed on the camera The camera shows that the diaphragm, which is programmed in the dandelion. This diaphragm is fixed and does not change during the shooting !!! Exposure is calculated according to the actual luminous flux after you close the lens aperture to the desired value at the time of shooting. It does not matter what aperture programmed dandelion. Extract all the same to count correctly. ETTL works similarly. Just put the flash and shoot. Flash energy is calculated automatically. Are firmware affect the accuracy and regimes? Does not affect. The dandelion can be sewn F1.0 / 12mm and use, for example, with Samyang 500 mm .. However, modern ETTL flash will try to uncover the reflector in accordance with the sewn in dandelion focal length. In this case, you need to convert flash to manually enter the zoom mode. video version ( in russian) Basics of working with a dandelion chip for Canon cameras : The camera must be in Av mode, set the One Shot mode in the camera menu so that the shutter will fire when the sharpness appears. Each lens has its correct focus direction. Set the subject in 3-5 meters from yourself. Then open completely the diaphragm on the lens and in the dandelion, also set the maximum open value. Turn the sharpness from: 1. clockwise 2. counterclockwise by fully pressing the shutter release button and focusing on the center point. As soon as the lens becomes sharp - the shutter will work. Do all the same, only sharpness twist from infinity to zero. Compare 2 pictures, in one direction the picture will be either completely in sharpness or much sharper than the second, here in this direction always focus with this lens and, based on this direction, do the alignment of the confirmation point. PROGRAMMABLE CHIP SPECIFICATIONS A new series of Dandelions for digital and film cameras Canon EOS. Since the autumn of 2008 an updated Dandelion is being produced. The case is made of specially hard plastic, for better slip. And the contact areas are covered with a solid layer of gold. The new series received an important function - the programming function. Those. you can independently change the "stitched" in the Dandelion value of the aperture and focal length. And also the most important adjustment function, which allows you to cope with the problems of accuracy of confirmation of focus. The new Dandelion does not use the MF mode, as it was before. Now the focus logic works in AF (autofocus) mode. First, it increases the accuracy of focusing. Secondly, it allows you to adjust the Dandelion to different instances of lenses. Third - the audio confirmation now works on all cameras. For example, on a film EOS 3000N. The sensitivity of the focus sensors in this mode is an order of magnitude higher. There was also one more feature - "hard" locking of the descent to the confirmation signal. If you hold the shutter button all the way down, the picture will be taken instantly at the exact focus signal. This allows you to shoot dynamic stories. And of course the main advantage of the new series is the ability to change the parameters of the Dandelion independently, without removing it from the camera. Parameters of Dandelion

Attention buyers from the USA! Delivery times from Ukraine to the USA are only 10-12 business days! I accept orders 24/7 I am a professional photographer and I myself use a dandelion chip on my lenses with my cameras more than 10 years! 
I have installed chips on more than 10,000 lenses and adapters! 
Only I sell with guarantee original dandelion chip for Nikon and Canon! 
If you bought from me and received my service, you will never buy a similar product from another seller! 
Only I give instructions and advice before and after the purchase! 
My service on Ebay is unique and the best. 
My store is available 24/7 for shopping. 
 Dandelion Chip Functionality: 
 1. Nikon camera immediately sees this lens as autofocus lens, without additional settings in the camera menu. 
2. Focus trap - until there is an exact focus, the shutter will not work (this function can be turned off). 
3. Full control of the diaphragm of the manual lens from the camera, if the manual lens has diaphragm control lever. 
4. Confirmation of focusing with light and sound at the selected point. 
5. You can choose any focus point, as with an autofocus lens. 
6. On younger Nikon cameras there will be correct metering (on older Nikon models, metering is by default). 
7. The flash will work in all automatic modes. 8. Record in EXIF all of the image parameters, as when working with an autofocus lens. 
 The Shipping cost price is constant and independent of quantity of purchased dandelion-chips! 
 ATTENTION. Before you make a purchase, send me a message ( text message for example ) " I want to buy chip for the lens: Nikkor 50mm / f 1.4-16, my camera Nikon D750 " Wait for my answer and only after that make a purchase! I answer very quickly at any time of the day or night. Если Вы говорите или понимаете по-русски - можно писать все вопросы на русском/украинском языках. AF Chip "Dandelion" for Nikon Compatibility: 1. There are only 4 film cameras that Dandelion is not compatible with: F4, F60, F90x, F801/S. It works with all other models perfectly. 1.1 . "F60" Function - works on Nikon models with a diaphragm reading mechanism. 1.2. Full compatibility and excellent work with Nikon Z6 / Z7 cameras via Nikon F - Nikon Z ( FTZ ) adapter. 1.3. Programming mode is not compatible with F5 and D1X/H models, but I am sending a fully pre-programmed chip 2 . Dandelion chip can not be installed only on lenses with aperture of 1.2. 3. I pre-program each chip for each of my customers. 4. I give instructions for installing the chip 5. I make consultations for every customer before and after purchase. 6. I make a personal video about each programmed chip for each of my customers. 7. You are guaranteed to get a fully working and pre-programmed chip! ATTENTION-2.   The chip is very fragile! In the case of improper use of the product by the buyer and mechanical damage to the chip, the buyer cannot claim the seller. If you made an attempt to install the chip and failed - RETURN IMPOSSIBLE. Dandelion Specification: Dandelion is designed to be mounted on adapter rings and manual lenses, which can then be used on Nikon AF digital and film cameras. Due to the size, commensurate with the match, Dandelion can be installed on any ring and any lens with a Nikon F bayonet that exist in the world. Lenses with such a bayonet have been produced since 1959. Dandelion can not be installed only on lenses with aperture of 1.2. 
If Dandelion is installed on the ring, the camera gets the function of metering. If your camera has a 3D matrix metering, it will also work. 
Accurate focus will be confirmed by sound and light signal. And the screen will highlight the points that fall into the focus area. On digital cameras younger series of sound confirmation. 
If you install Dandelion on a lens that is equipped with an AI-S type automatic aperture, the aperture on the lens will be controlled from the camera in the same way as autofocus lenses. 
There is another feature - the "focus trap". If you hold the shutter button all the way down, the snapshot will be taken instantly at the exact focus signal. This allows you to shoot dynamic scenes. 
Dandelion Compatibility: Dandelion does not work only on four film cameras: F4, F60, F601, F801 and F90x. It works perfectly for everyone else. Programming mode does not work on only two cameras: F5 and D1X /H. 
 What's in the package: 1. Dandelion chip original (fully pre-programmed and ready to install) 2. Special shelf-corner (for installing the chip on some adapters and some lenses) 3. Caliber for precise chip installation P.S. Programming and installation instructions - in electronic form, in personal correspondence. Variable Dandelion parameters: Diaphragm (Aperture ):  from F1.0 to F90 Focal length :  from 5 mm to 2000 mm ( selected from the table ) Focus mode: AF / MF Adjust the focus confirmation point: 17 steps

Attention buyers from the USA! Delivery times from Ukraine to the USA are only 10-12 business days! I accept orders 24/7 New adapter DKL mount to Canon EF with programmable Dandelion chip original  4 generation. The chip has the functions: 1. Programming (the focal length and aperture are programmed into the chip). 2. The focus trap function (as long as there is no exact hit in the focus - the camera shutter will not work - this is the "autofocus in manual mode") 3. The adjusting confirmation point   function (if your lens has a back / front focus - the focus confirmation point can be shifted by +/- 17 steps 4. Stand-by function !!! (None of the Chinese EMF chip has this function). Without this function, the chip discharges the battery, even if the camera is turned off. What is in the box? 1. DKL mount-Canon EF adapter with programmable dandelion chip original 2. Canon EF rear cap BEST SERVICE BEFORE AND AFTER PURCHASE! This adapter is equipped with the focusing chip that works on all Canon cameras, including the newest models, including: Canon 5D mark IV, Canon 5D mark III, 5Ds, 5DsR, 1Dx, 1Dx mark II,  6D,   650D, 700D, 750D, 70D, 80D, 100D. I make the free programming of each chip . ( in the chip programmed focal length and aperture). I make a personal video clip to each buyer of the   adapter with chip, in this video clip I show completely programmed chip! all video recorded for buyers to look at my  YouTube channel:  Andrey Kuryanov This chip works on all of Canon SLR cameras, both of film and all digital Canon SLR models,  including  Canon 6D mark II, Canon 6D mark IV, Canon 5D mark III, 5Ds, 5DsR, 1Dx, 1Dx mark II, 650D, 700D, 750D, 70D, 80D, 100D,  and so on - everything! In the chip-dandelion, you can pre-program only one single value of the focal length and a single value of the aperture! During the shooting, these values in the dandelion chip do not change! These values can only be changed in the programming mode of the dandelion chip! The name of the lens is impossible to pre-program in a dandelion chip! Before buying an adapter with a dandelion chip, write to me the name of model your Canon camera and: 1. The name of the lens, for example:  50 mm f/ 2.0 2. The focal length,   for example: 50 mm 3. The aperture ratio (the value of the most open aperture),   for example: f  2.0 All customers receive detailed instructions on programming the chip. Прежде, чем Вы сделаете заказ и оплатите его, напишите мне в личном сообщении: 1. Название Вашего объектива, например Olympus OM 50/1,4 2. Фокусное расстояние, которое нужно запрограммировать, например: 50 мм 3. Светосилу объектива (значение максимально открытой диафрагмы), например 1,4 Все покупатели получают подробную инструкцию по программированию чипа в письменном виде. Так-же я предоставляю видео-инструкцию по программированию. FAQ Canon Dandelion Chip: How does the metering What aperture will be displayed on the camera The camera shows that the diaphragm, which is programmed in the dandelion. This diaphragm is fixed and does not change during the shooting !!! Exposure is calculated according to the actual luminous flux after you close the lens aperture to the desired value at the time of shooting. It does not matter what aperture programmed dandelion. Extract all the same to count correctly. ETTL works similarly. Just put the flash and shoot. Flash energy is calculated automatically. Are firmware affect the accuracy and regimes? Does not affect. The dandelion can be sewn F1.0 / 12mm and use, for example, with Samyang 500 mm .. However, modern ETTL flash will try to uncover the reflector in accordance with the sewn in dandelion focal length. In this case, you need to convert flash to manually enter the zoom mode. video version ( in russian) Basics of working with a dandelion chip for Canon cameras : The camera must be in Av mode, set the One Shot mode in the camera menu so that the shutter will fire when the sharpness appears. Each lens has its correct focus direction. Set the subject in 3-5 meters from yourself. Then open completely the diaphragm on the lens and in the dandelion, also set the maximum open value. Turn the sharpness from: 1. clockwise 2. counterclockwise by fully pressing the shutter release button and focusing on the center point. As soon as the lens becomes sharp - the shutter will work. Do all the same, only sharpness twist from infinity to zero. Compare 2 pictures, in one direction the picture will be either completely in sharpness or much sharper than the second, here in this direction always focus with this lens and, based on this direction, do the alignment of the confirmation point. PROGRAMMABLE CHIP SPECIFICATIONS A new series of Dandelions for digital and film cameras Canon EOS. Since the autumn of 2008 an updated Dandelion is being produced. The case is made of specially hard plastic, for better slip. And the contact areas are covered with a solid layer of gold. The new series received an important function - the programming function. Those. you can independently change the "stitched" in the Dandelion value of the aperture and focal length. And also the most important adjustment function, which allows you to cope with the problems of accuracy of confirmation of focus. The new Dandelion does not use the MF mode, as it was before. Now the focus logic works in AF (autofocus) mode. First, it increases the accuracy of focusing. Secondly, it allows you to adjust the Dandelion to different instances of lenses. Third - the audio confirmation now works on all cameras. For example, on a film EOS 3000N. The sensitivity of the focus sensors in this mode is an order of magnitude higher. There was also one more feature - "hard" locking of the descent to the confirmation signal. If you hold the shutter button all the way down, the picture will be taken instantly at the exact focus signal. This allows you to shoot dynamic stories. And of course the main advantage of the new series is the ability to change the parameters of the Dandelion independently, without removing it from the camera. Parameters of Dandelion

Pentacon Six - Nikon F adapter with installed original programmable dandelion chip! BEST SERVICE BEFORE AND AFTER PURCHASE! This adapter is made for installation Pentacon Six mount manual lenses to Nikon F DSLR / film camera! I make the free programming each chip . ( in the chip programmed focal length and full aperture range). I make a personal video clip to each buyer of the   adapter with chip, in this video clip I show completely programmed chip! all video recorded for buyers to look at my  YouTube channel  Andrey Kuryanov On this adapter installed programmable  original dandelion chip Nikon. (  Lushnikov  Dandelion chip  - made in Europe - not China!!! ) 1. You can control the lens aperture of the camera. You can select any aperture through your camera! 2. The chip can operate in aperture priority mode A. 3. The chip can operate in mode M, P, and other modes. 4. Chip allows you to select any point of focus. 5. The chip provides the focus confirmation sound and light signal, as the autofocus lens Nikon. 6. The chip will not take a picture until no focus confirmation! (AF trap) AF Chip "Dandelion" for Nikon Compatibility   There are only three film cameras that Dandelion is not compatible with: F4, F60 and F90x. It works with all other models perfectly.  Programming mode is not compatible with F5 and D1X/H models. I do chip pictures and images of the chip packaging process to every buyer! NO RETURN for chip which has been glued ! Before making a purchase please contact the seller for telling him how you want to use a chip and what lens or adapter you want it to be installed on. Please give the following information: 1. The name of the lens or the adapter name,  such as Pentacon 80 / 2,8-22  2. Write the name of your camera, such as Nikon D5100 You get a fully working chip! 1.   I make the free programming of each chip . 2. I give detailed instructions for installing the chip to the lens or adapter! 3. Chip can not be set on the lens with the aperture ratio of 1.2 When buying a chip select: 1. The name of the lens, such as Nikkor 50 / 1,4-16 Non Ai 2. Attach a photo of your lens, made from the  bayonet  mount All the customers receive pictures made with programmed chip parameters and detailed instructions for use. After-sales support is free. The chip is very fragile! In case the customer uses the product improperly and the chip has been mechanically damaged the customer cannot bring claims against the seller. How to photograph with a dandelion chip on lenses without a diaphragm control lever 1. In the camera menu, you need to select the shooting mode AF-S 2. Select the aperture value in the camera 3. Select the same aperture value on the lens 4. Select the focus point (for example, center point) 5. Look at the viewfinder 6. You can fully press the shutter release button 7. Turn the focus ring 8. The camera shutter will work as soon as the subject of the shot is in focus. (This is how the focus trap works). 9. When the focus appears, you will hear the focus confirmation sound and see the focus confirmation light at the selected focus point. Dandelion (  programmable chip )  is designed to be installed on adapter rings and manual lenses so that they could then be used on Nikon AF digital and film cameras.  Because Dandelion is about the same size as a match, it can be fitted to any existing adapter ring or lens with Nikon F bayonet mount. Lenses with such bayonet mounts have been produced since 1959.  With Dandelion fixed on the ring, a camera obtains exposure metering function. If your camera has a 3D matrix meter, it will function as well.  Precision focus will be acknowledged by a sound and light signal. On the screen you will also find highlighted spots that got into focus area. Junior series digital cameras will provide an acknowledging beep.  With Dandelion installed on a lens with an automatic AI-S aperture, the aperture will be controlled through the camera similar to autofocus lenses. This is one of Nikon's strongest points: you don't have to care about aperture when using an old manual lens.  Dandelion has another peculiar feature of "hard" shutter block before acknowledging signal. When pressing shutter release button up to the stop, the shot is made immediately in response to the signal. This is useful when shooting fast-moving objects.  Dandelion's most important feature for eager photographers is the possibility to change its parameters without taking it off the camera. You can alter focal length and other parameters pre-set in Dandelion. See programming instructions.  

Attention buyers from the USA! Delivery times from Ukraine to the USA are only 10-12 business days! I accept orders 24/7 New adapter Canon FD to Canon EF with programmable Dandelion chip original  4 generation. I recommend using this adapter for lenses with an aperture of f/2.0 or darker.  On lenses with an aperture lighter than f/2.0 (f/1.2; f/1.4; f/1.8 - slight blurring of the resulting image is possible.  Reason: the diameter of the rear glass of such lenses is larger than the diameter of the glass in this adapter. The chip has the functions: 1. Programming (the focal length and aperture are programmed into the chip). 2. The focus trap function (as long as there is no exact hit in the focus - the camera shutter will not work - this is the "autofocus in manual mode") 3. The adjusting confirmation point   function (if your lens has a back / front focus - the focus confirmation point can be shifted by +/- 17 steps 4. Stand-by function !!! (None of the Chinese EMF chip has this function). Without this function, the chip discharges the battery, even if the camera is turned off. What is in the box? 1. Canon FD-Canon EF adapter with programmable dandelion chip original 2. Canon EF rear cap 3. Canon FD mount cap BEST SERVICE BEFORE AND AFTER PURCHASE! This adapter is equipped with the focusing chip that works on all Canon cameras, including the newest models, including: Canon 5D mark IV, Canon 5D mark III, 5Ds, 5DsR, 1Dx, 1Dx mark II,  6D,   650D, 700D, 750D, 70D, 80D, 100D. I make the free programming of each chip . ( in the chip programmed focal length and aperture). I make a personal video clip to each buyer of the   adapter with chip, in this video clip I show completely programmed chip! all video recorded for buyers to look at my  YouTube channel:  Andrey Kuryanov This chip works on all of Canon SLR cameras, both of film and all digital Canon SLR models,  including  Canon 6D mark II, Canon 6D mark IV, Canon 5D mark III, 5Ds, 5DsR, 1Dx, 1Dx mark II, 650D, 700D, 750D, 70D, 80D, 100D,  and so on - everything! In the chip-dandelion, you can pre-program only one single value of the focal length and a single value of the aperture! During the shooting, these values in the dandelion chip do not change! These values can only be changed in the programming mode of the dandelion chip! The name of the lens is impossible to pre-program in a dandelion chip! Before buying an adapter with a dandelion chip, write to me the name of model your Canon camera and: 1. The name of the lens, for example:  Canon FD 50 mm f/ 2.0 2. The focal length,   for example: 50 mm 3. The aperture ratio (the value of the most open aperture),   for example: f  2.0 All customers receive detailed instructions on programming the chip. Прежде, чем Вы сделаете заказ и оплатите его, напишите мне в личном сообщении: 1. Название Вашего объектива, например Olympus OM 50/1,4 2. Фокусное расстояние, которое нужно запрограммировать, например: 50 мм 3. Светосилу объектива (значение максимально открытой диафрагмы), например 1,4 Все покупатели получают подробную инструкцию по программированию чипа в письменном виде. Так-же я предоставляю видео-инструкцию по программированию. FAQ Canon Dandelion Chip: How does the metering What aperture will be displayed on the camera The camera shows that the diaphragm, which is programmed in the dandelion. This diaphragm is fixed and does not change during the shooting !!! Exposure is calculated according to the actual luminous flux after you close the lens aperture to the desired value at the time of shooting. It does not matter what aperture programmed dandelion. Extract all the same to count correctly. ETTL works similarly. Just put the flash and shoot. Flash energy is calculated automatically. Are firmware affect the accuracy and regimes? Does not affect. The dandelion can be sewn F1.0 / 12mm and use, for example, with Samyang 500 mm .. However, modern ETTL flash will try to uncover the reflector in accordance with the sewn in dandelion focal length. In this case, you need to convert flash to manually enter the zoom mode. video version ( in russian) Basics of working with a dandelion chip for Canon cameras : The camera must be in Av mode, set the One Shot mode in the camera menu so that the shutter will fire when the sharpness appears. Each lens has its correct focus direction. Set the subject in 3-5 meters from yourself. Then open completely the diaphragm on the lens and in the dandelion, also set the maximum open value. Turn the sharpness from: 1. clockwise 2. counterclockwise by fully pressing the shutter release button and focusing on the center point. As soon as the lens becomes sharp - the shutter will work. Do all the same, only sharpness twist from infinity to zero. Compare 2 pictures, in one direction the picture will be either completely in sharpness or much sharper than the second, here in this direction always focus with this lens and, based on this direction, do the alignment of the confirmation point. PROGRAMMABLE CHIP SPECIFICATIONS A new series of Dandelions for digital and film cameras Canon EOS. Since the autumn of 2008 an updated Dandelion is being produced. The case is made of specially hard plastic, for better slip. And the contact areas are covered with a solid layer of gold. The new series received an important function - the programming function. Those. you can independently change the "stitched" in the Dandelion value of the aperture and focal length. And also the most important adjustment function, which allows you to cope with the problems of accuracy of confirmation of focus. The new Dandelion does not use the MF mode, as it was before. Now the focus logic works in AF (autofocus) mode. First, it increases the accuracy of focusing. Secondly, it allows you to adjust the Dandelion to different instances of lenses. Third - the audio confirmation now works on all cameras. For example, on a film EOS 3000N. The sensitivity of the focus sensors in this mode is an order of magnitude higher. There was also one more feature - "hard" locking of the descent to the confirmation signal. If you hold the shutter button all the way down, the picture will be taken instantly at the exact focus signal. This allows you to shoot dynamic stories. And of course the main advantage of the new series is the ability to change the parameters of the Dandelion independently, without removing it from the camera. Parameters of Dandelion

Attention buyers from the USA! Delivery times from Ukraine to the USA are only 10-12 business days! I accept orders 24/7 I am a professional photographer and I myself use a dandelion chip on my lenses with my cameras more than 10 years! I have installed chips on more than 10,000 lenses and adapters! Only I sell with guarantee original dandelion chip for Nikon and Canon! If you bought from me and received my service, you will never buy a similar product from another seller! Only I give instructions and advice before and after the purchase! My service on Ebay is unique and the best. My store is available 24/7 for shopping. With this adapter, there is focusing on infinity with M42 lenses! First write me a message: what lens do you want to use with this adapter! I will give advice on using your lens with this adapter! The lens in this adapter is designed for lenses with an aperture of f2.0 If your lens has apertures from f1.0 to f1.9 - do not buy this adapter! You won't get sharpness in the photo! Dandelion chip - original, programmable, made in Europe. (M42-Nikon Adapter by Pixco) This adapter is made for installation M-42 mount manual lenses to Nikon F DSLR / film camera! I make a personal video clip to each buyer of the   adapter with chip, in this video clip I show completely programmed chip! all video recorded for buyers to look at my  YouTube channel  Andrey Kuryanov On this adapter installed programmable chip Nikon. ( Dandelion Lushnikov - made in Europe - not China!!! ) 1. You can control the lens aperture of the camera. You can select any aperture through your camera! 2. The chip can operate in aperture priority mode A. 3. The chip can operate in mode M, P, and other modes. 4. Chip allows you to select any point of focus. 5. The chip provides the focus confirmation sound and light signal, as the autofocus lens Nikon. 6. The chip will not take a picture until no focus confirmation! (AF trap) AF Chip "Dandelion" for Nikon Compatibility: There are only three film cameras that Dandelion is not compatible with: F4, F60 and F90x. It works with all other models perfectly.  Programming mode is not compatible with F5 and D1X/H models. Free tracking number !!! I do chip pictures and images of the chip packaging process to every buyer! Please give the following information: 1. The name of the lens or the adapter name,  such as  Helios 44-2 58mm/f 2-16 2. Write the name of your camera, such as Nikon D5100 You get a fully working chip!                                                1.  I make the free programming of each chip .                                                2. I give detailed instructions for installing the chip to the lens or adapter! 3. Chip can not be set on the lens with the aperture ratio of 1.2 When buying a chip select: 1. The name of the lens, such as  H elios 44-2 58mm/f 2-16 2. Attach a photo of your lens, made from the  bayonet  mount All the customers receive pictures made with programmed chip parameters and detailed instructions for use. After-sales support is free. The chip is very fragile! In case the customer uses the product improperly and the chip has been mechanically damaged the customer cannot bring claims against the seller. How to photograph with a dandelion chip on lenses without a diaphragm control lever 1. In the camera menu, you need to select the shooting mode AF-S 2. Select the aperture value in the camera 3. Select the same aperture value on the lens 4. Select the focus point (for example, center point) 5. Look at the viewfinder 6. You can fully press the shutter release button 7. Turn the focus ring 8. The camera shutter will work as soon as the subject of the shot is in focus. (This is how the focus trap works). 9. When the focus appears, you will hear the focus confirmation sound and see the focus confirmation light at the selected focus point. Dandelion (  programmable chip )  is designed to be installed on adapter rings and manual lenses so that they could then be used on Nikon AF digital and film cameras.  Because Dandelion is about the same size as a match, it can be fitted to any existing adapter ring or lens with Nikon F bayonet mount. Lenses with such bayonet mounts have been produced since 1959.  With Dandelion fixed on the ring, a camera obtains exposure metering function.  If your camera has a 3D matrix meter, it will function as well.  Precision focus will be acknowledged by a sound and light signal.  On the screen you will also find highlighted spots that got into focus area.  Junior series  digital cameras will provide an acknowledging beep.  With Dandelion installed on a lens with an automatic AI-S aperture,  the aperture will be  controlled through the camera similar to autofocus lenses. This is one of Nikon's  strongest points: you don't have to care about aperture when using an old manual lens.  Dandelion has another peculiar feature of "hard" shutter block before acknowledging  signal. When pressing shutter release button up to the stop, the shot is made  immediately in response to the signal. This is useful when shooting fast-moving  objects.  Dandelion's most important feature for eager photographers is the possibility to  change its parameters without taking it off the camera. You can alter focal length  and other parameters pre-set in Dandelion. See programming instructions.