Объектив в хорошем состоянии.  На фото постарался показать следы использования. Диафрагма работает плавно, быстроходная диафрагма работает быстро .

39 пачек по 10 штук, много 390 штук совершенно новый доставка UPS Express

Hygrometer Vit-2 is a very accurate and easy-to-use device. To determine the humidity of the air. Application: remove a glass flask, pour water into it, insert it into the device, wet a rag, wait 5-10 minutes, look at a thermometer without a flask, for example 30C, subtract the reading of a thermometer with a flask, for example 20C, you will see the difference 30C-20C = 10C ...  We look at the table on the left - these are the readings of the thermometer without a glass flask 30C  at the top, the difference is 10 ° C between  indications. Get an indication of the intersection of these values  air humidity 35% Measuring temperature 68-104F humidity from 20-93%.