Cosina 200mm 1: 4 MC Cosinon-T review

For the ability to view the lens Cosina 200mm 1: 4 MC Cosinon-T Many thanks to Alexander Perever.

Cosina 200mm 1: 4 MC Cosinon-T

Cosina 200mm 1: 4 MC Cosinon-T

Cosina 200mm 1: 4 MC Cosinon-T - telephoto lens for Pentax film cameras. The Cosina 200mm 1: 4 MC Cosinon-T type K mount lens, this lens is suitable for modern Pentax cirrhos. Actually, I have never seen Cosinon-T being produced with other mounts. The optical design of the lens is unknown.

Cosina 200mm 1: 4 MC Cosinon-T lens view from different sides

Cosina 200mm 1: 4 MC Cosinon-T lens view from different sides

Features of the Cosina MC Cosinon T 200mm F / 4 Lens

  1. As for a 200mm telephoto, Cosinon-T is very compact and lightweight. Cosinon-T is all made of metal and glass. On the case you can find the inscription Lens Made In Japan, which promises good quality lens and photographs.

    Photo at Cosina 200mm 1: 4 MC Cosinon-T

    Photo at Cosina 200mm 1: 4 MC Cosinon-T

  2. The lens aperture has a total of 6 blades, which when closed give a hexagon and nuts in the bokeh. The maximum aperture is only F4.0, which is a rather low indicator for a fixed lens. Due to the low aperture and long focal length, you need to be very careful, taking off.

    Photo at Cosina MC Cosinon T 200mm F4

    Photo at Cosina MC Cosinon T 200mm F4

  3. The lens has a very large minimum focusing distance. MDF is as much as 2.9 meters. Almost three meters - this is very inconvenient when trying to focus on a nearby object. Personally, I was very surprised and saddened by this fact, because in order to remove a sparrow on a tree two or three meters away, I had to not approach the fidget bird, but, on the contrary, move even further. The focus ring rotates 270 degrees. Focusing is pretty simple. Of course, the lens only has manual focus. After 30 meters, infinity begins on the scale of the lens. When focusing, all the lenses move in the middle of the tube.

    Photo at Cosina 200mm 1: 4 MC Cosinon-T

    Photo at Cosina 200mm 1: 4 MC Cosinon-T

  4. The Cosina 200mm 1: 4 MC Cosinon-T has an integrated telescopic hood. But it does not help a bit when working in side or backlight, just a nice addition to the lens. The hood extends forward by about 4cm.

    Photo at Cosina 200mm 1: 4 MC Cosinon-T

    Photo at Cosina 200mm 1: 4 MC Cosinon-T

  5. Only the values ​​F8 and F22 are shown on the depth of field scale. And the diaphragm itself can only be set to fixed values ​​F22, 16, 11, 8, 5.6, 4.

    Photo at Cosina 200mm 1: 4 MC Cosinon-T

    Photo at Cosina 200mm 1: 4 MC Cosinon-T

  6. The lens has multi-enlightenment. Front lenses give off a purple glow.

    Photo at Cosina 200mm 1: 4 MC Cosinon-T

    Photo at Cosina 200mm 1: 4 MC Cosinon-T

  7. The ratio of aperture and focal length allows you to control the depth of field well. At the full frame, Cosinon-T could be used as a good portrait portrait, but in the spring of 2012, Pentax does not yet have a full-frame digital SLR camera. And on the Cosina 200mm 1: 4 crop, the Cosinon-T becomes “long”.
Photo at Cosina MC Cosinon T 200mm F4

Photo at Cosina MC Cosinon T 200mm F4

Image quality on Cosina 200mm 1: 4 MC Cosinon-T

I was very upset by the quality of the picture. Cosinon-T lens gives very strong HA up to aperture of F8.0, sharpness at 4.0 is low. The contrast is low. Color reproduction is normal. Distortion is minimal, vignetting is also minimal. Regarding sharpness, a fixed lens should give better sharpness. Normal photos are obtained somewhere with F8.0. I shot mainly on F8.0-F11.0. Perhaps I have not the most successful instance. Bokeh can’t boast anything special.

Photo at Cosina MC Cosinon T 200mm F4

Photo on Cosina MC Cosinon T 200mm F4 in strong side light

 How to use on modern Pentax digital SLR cameras?

I used the lens without any problems Cosina 200mm 1: 4 MC Cosinon-T  from this review on camera Pentax K10D. A sound alert or a green hexagon in the viewfinders will inform about the focus accuracy. When mounted on the camera, the iris of the lens opens completely. You can zoom in with it fully open, and during shooting the camera will close it to the set value by itself. When used on some cameras by type Pentax K10D it may be difficult to shoot with closed apertures, as Pentax K10D and some other cameras cannot read the diaphragm set using the ring. Therefore, the exposure meter will provide the shutter speed required for a fully open aperture, but in fact, the aperture closes to a different value during shooting, as a result of which you can get an underexposed dark frame.

View of the Cosina 200mm 1: 4 MC Cosinon-T lens on a modern camera

View of the Cosina 200mm 1: 4 MC Cosinon-T lens on a modern camera

Sample photos on Cosina 200mm 1: 4 MC Cosinon-T

All photos were taken on camera. Pentax K10D. In the review, all photos are without processing, on-camera JPEG of maximum quality, size reduced to 1600 * 1200 pixels, data from EXIF. Perhaps the diaphragm data is not always correct, I write it from memory.

Also, you need to remember that on cropped Pentax digital SLR cameras, the lens will give a narrower angle of view, and EGF lens will be as much as 300mm, which turns the Cosina MC Cosinon T 200mm F / 4 into a nice long telephoto. As you can see in the examples of photographs, it is quite easy to shoot birds and timid animals on it. Due to the large focal length and small aperture of the lens, make sure that you do not get a blurry picture - in more detail in the article How take pictures with hand.

Photo at Cosina MC Cosinon T 200mm F4

Photo at Cosina MC Cosinon T 200mm F4


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Conclusion

Cosina 200mm 1: 4 MC Cosinon-T - tele fix lens. Picture quality is not particularly good up to F8.0 aperture. Perhaps it’s just not the most successful instance.

Material prepared Arkady Shapoval... Look for me on Youtube | Facebook | Instagram | Twitter.

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Comments: 10, on the topic: Review Cosina 200mm 1: 4 MC Cosinon-T

  • Serg

    at the very bottom of the feline cat)))))

  • By the way, now Cosina makes all Carl Zeiss lenses. And the quality (and generally the optical design) of these lenses is completely different. And what Cosina did in the 70s was the products of a producer of the 3rd grade.

    So do not be discouraged, Arkady! You will still have a good Cosina in testing! :)

    • Arkady Shapoval

      Thanks. On the Internet You can find just a lot of positive reviews about the old optics, but in reality you are right - Cosina used to make mediocre technology.

  • Titmouse is not big! So would grab)))) murrr

  • Sasha

    It seemed to me that the SUPER COSINA 80-200mm 1: 4,5 - 5,6 Olympus OM mount is not bad at all, I would like to see its test review and get an opinion in comparison with the Juptier-21A.

    • Arkady Shapoval

      As soon as I fall into hands, I will do a review.

  • Svetlana

    Cool sparrows!
    What else can you shoot birds and macro is desirable if I have a Pentax K200D?

  • Nina

    Arkady, my grandfather recently gave me such a lens, how do you think it will fit my nikon d3200 DSLR and in general it will fit except DSLR Pentax?

  • Amateur photographer_

    Tsey about, Actually hardly more beautiful for the image for the Kiev Tele-N. Mozhe, navіt y gіrshe.

  • aussiedler

    (Tomioka Cosinon Auto 1.2 / 55mm) Western ging so ein Objektiv erst wieder für 413 Euro in ebay raus. Nglaublich
    from the German forum 2012 Yesterday on ebay a lens appeared for 413 Euro (Tomioka Cosinon Auto 1.2 / 55mm) So, by the way, about old Cosinon (s).

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