RF-3 10/300 USSR lens for duplicating enlarger 18x24 cm LOMO large format

RF-3 lens for duplicating camera RUZ-50, 780409 300 mm, 1:10, M52 LOMO, Leningrad, USSR Perfect condition. Lens is clear and clean, without any fungus or scratches. Inside the lens there is some microdust. Body has small signs of age. Aperture works properly and tightly. Aperture ring has a small backlash. Aperture blades have a bit oil. This is a large format lens for duplicating camera RUZ-50 It's one of the best USSR lenses for large format cameras. Camera RUZ-50 was used in polygraphic industry. Its frame size was 18x24 cm and lens RF-3 was default for it. Lens RF-4 replaced Industar-11 having much better resolving power. This lens does not have focusing ring. Focusing is achieved with moving of the camera body. Thanks to the lens sharpness enlarger was used to reproduce books, newspapers, drafts, manuscripts and so on. This lens is interesting with a cut at the body. Additional diaphragm of necessary shape (square, rectangular, hexagonal and so on) can be inserted through that cut. Lens has one-layered anti-reflection coating. Сharacteristics: Lens s/number - 780409 Number of lenses - 6 in four groups Frame size - 18x24cm Number of aperture blades - 12 Angle of view - 43o Limit of aperturing - 1:10 (max), 1:64 (min) Type of mount - M52x0.75 Resolving power - (centre/edge) 35/18 lines/mm Dimensions (mm): 65*65*60 Mass - 264 g ---------- Conditions: Economy shipping to the address stated at Pinkoi with tracking number, usually sent within 3 business days after payment. See the photos for details. Photos are actual - that is exactly the lens you will receive. Please, do not hesitate to contact me for any information required. Please, watch my other items. I combine shipping - write to me what items do you want to buy, and I will calculate the discount for combined shipping. Package is packed thoroughly and carefully and marked as a “gift”. If you need to add invoice in the envelope or not to mark as a “gift”, write to me. If you are interested in terms of shipment - write to me, and I will tell the minimum, maximum and average time of shipment to your country (I accumulated vast statistics). Return shipping (if the item is as described in the ad) is paid by the buyer. My price include the item and shipping cost and does not include Duties, Value Added Taxes, Customs Clearance Fees and other charges. These charges are the buyer's full responsibility. Please check with your country's customs office to determine what these additional costs will be before bidding/buying. Buyer needs to pay for the above fees in case that occurred for certain goods. If the package returns back to me due to the buyer refuse to pay those fees, I would not send the package again unless the buyer completes those fees and pay all the return and resend cost. Buyer can not cancel the order or request refund due to this reason. All the customs clearance and other affairs that can be necessary to get the package in the buyer’s country is buyer’s full responsibility. Please, be sure that you are aware of your post office working time, order and rules of package delivery and be ready to accept the package. If the package returns to me as “unclaimed” or the tracking system shows “unsuccessful delivery attempts”, refund to the buyer will be paid deducting the shipping and return costs. Resending must be paid extra.