TK-2 M42 mount 2x converter teleconverter USSR box

TK-2, Soviet teleconverter 2x, M42 mount, s/n 000045 Kharkiv plant of precise machinery "Tochpribor", Kharkiv, USSR with box Very good condition. Lens is clear, clean and does not have any fungus, dust or scratches. This converter had a jumping diaphragm mechanism, but it's broken - so it does not support such lenses anymore. Body has signs of age. Box is original and has sighs of age and use. Camera "Zenit E" and lens "Helios-44-2" are not included and shown as an example only. This is a teleconverter for cameras and lenses with M42 mount with 2x magnification. It is very simple to use - just screw it between camera and lens and lens characteristics will be doubled. "Mir-1" 2.8/37 will become 5.6/74, "Jupiter-9" 2/85 will become 4/170. On the last photo see the converter set between SLR "Zenit-E" and lens "Helios-44-2". It has one-layered anti-reflection coating. Also its version TK-2M exists with jumping diaphragm mechanism that will pass exertion from the camera to lens jumping diaphragm pin. Its price was 29 Soviet Roubles (with average salary 120 Soviet Roubles per month). Snumber - 000045 Type of thread - M42 mount Dimensions (mm): 48*48*37 Magnification - 2x Mass - 112 g (139 g with box) One-layered anti-reflection coating ---------- 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.