For the opportunity Carl Zeiss Jena Biotar 1: 2 f = 5,8cm T lens review Many thanks to Vadim Shkurat, who sent me a lens from another area.
My Carl Zeiss Jena Biotar 2/58 is very old, one of the first modifications, the hallmark of which is 17 blade aperture. The aperture gives absolutely even circles in the blur zone for any value of the number F. My copy has a black color, I met exactly the same Carl Zeiss Jena Biotar 2/58 but in a metallic white frame, everything except the color of the lenses is the same. There are also a couple of modifications of Carl Zeiss Jena Biotar 2/58, mainly white metallic Carl Zeiss Jena Biotar 2/58 with 10 aperture blades. You can look at Carl Zeiss Jena Biotar 2/58 T with 12 aperture blades
The lens has 6 elements in 4 groups, this optical scheme formed the basis of the Soviet lenses of the Helios-44x-X family, for example, the first of them Helios-44 58 mm F2.0 with 13 aperture blades. Surprisingly, Carl Zeiss Jena Biotar 2/58 from this review showed a weaker contrast than Helios.
Carl Zeiss Jena Biotar 2/58 has a good aperture in combination with a focal length of 58mm, which on modern cropped cameras is not bad for portraiture.
Carl Zeiss Jena Biotar 2/58 itself turned out to be a very small lens. Carl Zeiss Jena Biotar 2/58 has a M42 fitting thread.
How to use with modern cameras?
Lenses with mounting thread M42 (M42 X 1 / 45.5), such as the lens from this review, are very easy to use on almost any modern digital camera (both SLR and mirrorless), for this it is enough to choose the right adapter (adapter). You do not need to carry out any additional steps to modify the lens.
The cheapest adapters can be found aliexpress.com... There are adapters (adapters) with a chip that provide more convenience during shooting, usually chips are used to confirm focus and / or metering exposure, and form the correct EXIF. The chip does not affect the image quality in any way.
For some SLR cameras (for example, Nikon F) it is necessary to use adapters with a corrective lens, which allows correct focusing at all focusing distances. For any mirrorless camera, such a lens is not needed, and the adapter is a simple decorated hollow metal tube with an appropriate mount.
For SLR cameras
- Canon: For cameras Canon EOS with bayonet mount EF / EF-S need an M42-Canon EOS adapter, such an adapter with a chip can be found herewithout chip here.
- NIKON: For cameras Nikon DX / FXas well as for cameras Fujifilm и Kodak with a Nikon F mount, you need an M42-Nikon F adapter, you can buy such an adapter without a lens and a chip here, with a lens without a chip herewith chip without lens here, with lens and chip here. Why a lens? Why chip?
- PENTAX: For cameras Pentax with mount K you need an adapter M42-Pentax K, you can buy such an adapter here.
- SONY/MINOLTA: For cameras with a Sony / Minolta A mount, you need the M42-Sony A adapter, you can find such an adapter without a chip at this linkwith a chip at this link.
- OLYMPUS / PANASONIC / LEICA: For cameras with a 4/3 bayonet mount (not to be confused with Micro 4/3!) You need an M42-4 / 3 adapter, you can buy such an adapter here.
For mirrorless cameras
- SONY: For cameras with an 'E' series mount SonyNEX и Sony Alpha you need an adapter M42-Sony E (aka M42-Sony Nex), you can find it at this link. An autofocus adapter is also available for these cameras. Techart PRO Leica M - Sony E Autofocus Adapterwhich can be found at this link.
- OLYMPUS / PANASONIC / KODAK / XIAOMI: For cameras with a Micro 4/3 bayonet mount (Micro 4: 3), you need the M42-Micro 4/3 adapter, you can find it at this link.
- CANON M: For cameras with a bayonet mount Canon EF-M need adapter M42-Canon M, it can be found at this link.
- CANON R and RF-S: For cameras with a bayonet mount Canon r need adapter M42-Canon R, it can be found at this link.
- Nikon 1: For cameras Nikon 1 Series need adapter M42-Nikon 1, you can find it at this link.
- Nikon Z: For series cameras Nikon Z need adapter M42-Nikon Z, it can be found at this link.
- FUJIFILM X: For cameras with mount X need an M42-Fuji X adapter, you can find it at this link.
- FUJIFILM GFX: For medium format cameras G-mount need M42-Fuji GFX adapter, you can find it at this link.
- SAMSUNG: For cameras with NX mount need adapter M42-Samsung NX, you can find it at this link. For the camera Nx mini adapters do not exist yet.
- PENTAX: For cameras with Q mount need an adapter M42-Pentax Q, you can find it at this link.
- SIGMA / PANASONIC / LEICA: For cameras with L mount, you need the M42-Leica L adapter, you can find it at this link.
- LEICA: For cameras with a Leica M mount need adapter M42-L / M, you can find it at this link.
If you have any questions on compatibility and adapters - ask in the comments (comments do not require any registration at all).
The lens focuses smoothly, while focusing the front lens does not rotate, and the trunk of the lens lengthens slightly. The focus ring rotates about 270 degrees. The minimum focusing distance is only 90 centimeters. The lens has a focus distance scale and DOF for all aperture values.
The aperture control ring is located in front of the lens and can be accidentally hit when focusing. Any F-number from F / 2.0 to F / 22.0 is available, and aperture control is smooth, no clicks or fixed values. 17 blackened petals are a very nice thing.
All photos taken on Nikon D700without processing.
From my copy number 3425475, you can determine that the lens was released between 1949-1952. The lens gives a nice picture. If I had a choice for the practical use of such a lens, I would leave for myself something from Helios.
Catalog of modern Carl Zeiss lenses can look at this link.
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Carl Zeiss Jena Biotar 1: 2 f = 5,8cm T - a good old manual focus lens with legendary background swirl in the out-of-focus area. Interesting for its 17-blade diaphragm, aperture and small size.Material prepared Arkady Shapoval... Look for me on Youtube | Facebook | Instagram | Twitter | Telegram.