For the opportunity PENTACON auto 2.8 / 29 MC review Many thanks to Alexander from the Manual Optics section.
The PENTACON auto 2.8 / 29 MC has several modifications, for example PENTACON electric 2.8 / 29 MC and PENTACON auto. The parent of all modifications was Meyer Orestegon 2.8 / 29. The copy from this review is one of the latest versions, the lens has a M42 fit thread and a diaphragm control mode switch.
TTX PENTACON auto 2.8 / 29 MC:
Design: 7 elements in 7 groups
Front Filter Diameter: 55mm
Fit thread: M42
The weight: 240g
Aperture limits: F2.8-F22
Made in: German Democratic Republic (GDR)
My copy came in a pretty case, it looked like no one had ever used it, the lenses were perfectly clean, the case hadn't been worn out for years of use. It alerted me that a good lens and no one used it - a rarity. But as it turned out with the lens and the picture on it - everything is in order. The front lens has a slightly purple multi-coating tint. In size, it is slightly larger than Helios-81N.
The main features of the lens
- PENTACON auto 2.8 / 29 MC is a manual lens from film cameras with an M42 mounting thread. You can only focus manually. It can be used both on a full frame and on a crop. The focusing ring is quite comfortable. Focus is nice.
- 2,8 maximum aperture makes this lens fast enough to take a normal result when taking it off in poor light. Also, 29mm is easier to avoid picture blur than on lenses with a longer focal length. Although, this is all conditional, shooting in some kind of clubyou can’t do without a flash. The number of aperture blades is only 6 pieces. The bokeh on the open is even very good.
- Multi-Enlightenment (MS) allows you to get a contrasting picture and overcome backlight. In strong backlight against the sun, the lens gives a veil, but not a very strong one. Lateral light transfers normally.
- The build quality is excellent, because it was made in the GDR. I was pleased with the stylish lens case, and of course the inscription German Democratic Republic.
- The housing has all the necessary indicators, as for any non-autofocus lens. Infinity on the focus distance scale starts at 4 meters. DOF is indicated for the following aperture values: 4, 8, 16, 22.
- The thread under the 55mm filter will make it easy to find the right filter. Also, when focusing, the front element does not spin, it only moves 2 cm forward.
- The lens is very small MDF (minimum focusing distance), this will allow you to shoot from a very close distance and thereby control the perspective. For a wide angle - MDF is a very important indicator.
It is difficult to judge the quality, since I could not use the lens for shooting architecture, landscapes, etc. This happened due to the loss of the ability to focus at infinity on my Nikon camera. Usually, a lens with such a focal length is used for landscapes and nature. I only used it for big shots. HA pronounced on contrasting objects. The distortion is easy to see, it is still 29mm. Color reproduction is normal. I did not notice vignetting even at 2.8 on my cropped matrix. They say that the PENTACON auto 2.8 / 29 MC is not sharp enough, but my copy showed good sharpness and at F2.8, closing the aperture, the sharpness only increases. There is a slight spherical aberration effect. Somewhere after F11, a diffraction effect occurs on the crop. But even on F22 the picture is pretty sharp, don't believe me - see examples. The back and side light does not hold very well, but not very bad either. Bokeh too, not special, but pretty nice.
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 at 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, with the Nikon F-mount), you need to use adapters with a corrective lens, which allows you to focus correctly at all focusing distances. For any mirrorless cameras, 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 Pentax cameras with K mount, you need an M42-Pentax K adapter, 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 'E'/'FE' mount series 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 bayonet mount Micro 4/3 (Micro 4:3) you need an adapter M42-Micro 4/3, you can find it at this link.
- CANON M: For cameras with Canon EF-M mount need adapter M42-Canon M, it can be found at this link.
- CANON R and RF-S: For cameras with Canon RF mount 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 cameras Nikon Z series (FX/DX) need an 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, you need an M42-Samsung NX adapter, you can find it at this link. There are no adapters for the NX mini camera yet.
- PENTAX: For Q-mount cameras, you need an M42-Pentax Q adapter, you can find it at this link.
- SIGMA / PANASONIC / LEICA: For cameras with L mount you need an M42-Leica L adapter, you can find it at this link.
- LEICA: For cameras with a bayonet mount Leica M 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).
On cropped cameras, the angle of view becomes narrower, and on Nikon with 1.5x crop, this is already the equivalent of 43,5, for Canon with 1.6x crop it is already 46,4 mm (almost fifty dollars). On the crop, all the wide-angle of the lens and many of the charms of using the PENTACON auto 2.8 / 29 MC are lost. How to use on other systems like Pentax, Sony, Olympus - you can easily find on the Internet. From old manual lenses, it is very difficult to find a really wide-angle lens for crop, so that on the crop it is also wide enough. If you need a good wide-angle fast lens, the PENTACON auto 2.8 / 29 MC is not very suitable for this role. Personally, for a wide angle, I used to use the simplest whale one, now I have a good copy in service Tamron 17-50 2.8.
Sample photos on PENTACON auto 2.8 / 29 MC
All photos taken on Nikon D40. Photos without processing, only reduced size 1600 * 1200 pixels, added watermark (watermark) from EXIF. Many people ask, but how do I add focal length and aperture from EXIFif I use a lens without dandelion lushnikov, moreover - on the camera, without the ability to manually set the parameters. It's very simple - I write down at what focal length (if it's a zoom lens) or at what aperture this or that picture was taken, and then I manually enter the values into the watermark in the photos. Sometimes I forget to write down or remember the exact value, so I indicate the approximate aperture limits, for example, it happened with the Tair-11A, when on a cold spring day of filming near the sea I forgot to write down the values.
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Hack and predictor Aviator
The PENTACON auto 2.8 / 29 MC is a good wide angle lens. I do not recommend using it on a crop. Gives a good, fairly sharp picture, is a little afraid of backlighting.