Vintage Cameras & Lenses

MIR-20M 20 mm f/3.5 M42 ultra-wide-angle fast lens Carl Zeiss Flektogon copy Mir-20 20mm f/3.5 is an interchangeable  ultra-wide-angle fast lens.   The basis of the optical scheme of the Mir-20 lens was borrowed from the Carl Zeiss Jena Flektogon 20 mm f/2.8 lens. Some changes have been made to the scheme. The lens produces a sharp image, especially in the central region, already from aperture 3.5, from aperture 5.6 it is very sharp. The drop in resolution at the edges of the frame is quite noticeable. The Mir-20 20mm f/3.5 has almost no geometrical distortions. Color reproduction is bright and saturated. Slightly shifted to the area of ​​warm tones. The Mir-20 lens is perfect for shooting landscapes, interiors, architecture, genre and reportage . Fits well on modern digital SLR cameras. When set to hyperfocal distance, you can forget about autofocus and shoot very quickly. Mir-20 20mm f/3.5 lens features 96° diagonal field of view Resolution (0/10/20mm)1): 50/35/30 lines/mm Specification resolution (center/edge): 50/20 lines/mm Light transmission coefficient: Mir-20M - 0.75; MC Mir-20M - 0.90 Color formula: Mir-20M - 11-0-2; MC Mir-20M -- 11-0-0 Geometric Vignetting: 40% Lens length with caps: Mir-20M - 68 mm;  The largest frame diameter: Mir-20M - 92 mm;  Format: 35mm mirror SLR/DSLR Type: Fixed focal length (fixed) Focus: Manual focus System: M42, Nikon F (FX, DX), Pentax K Year of production start: 1973 End of production year: 1996 Optical design: 9 elements in 8 groups ----------------------------------------------- See my other items to save shipping costs.  Please note that delivery may be delayed due to COVID. Usual shipping time (with tracking) to EU 7-17 days, USA and Canada   9-35 days, other world   12-45 days. In very rare cases it may be due to customs issues or holiday delays. This is a used item and may have traces of usage.  Purchasing old/vintage/used equipment please make sure it is compatible with your new cameras, lenses etc. you are going to use it with.  Please note that the delivery takes place from outside the EU, therefore customs fees are possible. Import duties, taxes, and charges are not included in the item price or shipping cost. These must be paid by the buyer depending on the destination country.  Questions have to be asked before the bid. All information in the listing are not binding and without guarantee. Errors, misprints and prior sale expressly reserved. If you have any issues with your purchase please contact me before leaving a feedback. I value my customers and all problems can be solved. Return Policy  If you are not satisfied for any reason with any item you have purchased, you can return it within 14 days after receiving it.  Please, make sure the item is packed and shipped it in the same condition you have received it.  Full refund will be issued after I receive the item back. Buyers have to pay for the return shipping, except for receiving wrong or defective items. In those cases I will cover your shipping expenses (applied only for economy international shipping services)