INDUSTAR-61 2.8/52 mm, mount M39, for Fed, Zorki cameras, lens USSR. Made in the USSR.

Suitable for all modern cameras with M39 mount.

----------------------------------

Industar-61 - Enlightened lens of medium aperture with lanthanum glass. The calculation was made by the well-known Soviet opticians Academician G. Slyusarev and V. Sokolova in accordance with the trends in the use of the latest types of optical glass with rare earth elements. Both positive lenses use STK-6 lanthanum superheavy crown. Such glass has a high refractive index, allowing to obtain the same optical power with less surface curvature and, as a result, reduced aberrations.

Compared to earlier Industars with a very fast drop in resolution towards the edges of the frame, the new lens provides more even field sharpness. Produced in different frames for different types of small-format photographic equipment. On frames of various versions, the focal length could be indicated as 50, 52, 53 and 55 mm, although its exact value is 52.42 mm.

The four-lens Industar-61 has almost the same resolution as the six-lens Helios-81. It was used as a standard for the FEDs and as a replacement for the Zeniths. The designation "D" means the version for rangefinder cameras, and "Z" - for SLR. In the mirror version, the frame could be pulled out strongly, allowing macro photography at a distance of up to 0.3 meters without extension rings. For excellent sharpness and high contrast, in many cases, photographers preferred the Industar-61 L / Z to the regular Helios-44.

In the USSR, it was produced at three factories.

The buyer will receive exactly the same item as in the photo.

----------------------------------

Dear customer, thank you for visiting my humble shop.

I combine all your purchases. When buying 2 or more consignments of goods, additional shipping costs will not be charged, and will be recalculated.

That is, there are two options for combining goods into one package:

1. When adding several items to the cart (without payment), the buyer in the cart will have a link above your items with something like this - "Request totals" or "Request an invoice for combined shipping", to send me a request to recalculate the shipping cost.

2. The second option, when you buy two or more goods and pay for them in full with delivery, after receiving the money to the ebay account, I create a request for ebay and the excess is returned to you back to your account.

The shipping cost is calculated by weight, and can be reviewed (if you bought a lot of goods) and agreed with the buyer, for example:

1. One price from 0 - 250 grams with packaging.

2. Other price from 250 - 500 grams, 500 - 1000 grams with packaging.

Please note that you will receive exactly the product that you saw in the photos, and not a similar or some other non-original one.

I am a decent and honest seller, all items will be shipped safe and sound.

If you have any problems or questions, please write to me, I will answer you within 24 hours.

I am always interested in keeping my clients happy.

If you have bought a satisfied product and enjoyed my service, I expect positive feedback and 5-star ratings from you. I will also leave you a rating of a good reliable buyer.

----------------------------------

Come visit us again. Thanks and Regards.