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Cosina 100 mm f/3.5 Macro

Pictures:
Specifications:
Manufacturer Cosina
Model 100 mm f/3.5 Macro
Lens style Telephoto
Focal length 100 mm
Maximum aperture f/3.5
Angle of view 24 o
Closest focusing distance 0.43 m
Maximum magnification 1:2
Minimum aperture 22
Number of diaphragm blades 8
Auto focus type AF
Lens Construction 4 elements / 5 groups
Filter diameter 49 mm
Macro Yes
Available mounts Canon EF
Nikon F
Sony A / Minolta
Pentax K
Dimensions 68 x 70.5 mm
Weight 208 g
Additional information
Average rating (6 owners reviews)
Build quality
Optical quality
Value for money

Overall

3.89 Average
Owners reviews (6)
  1. Mike
    Mike 15 July 2022, 01:27
    Build quality
    Optical quality
    Value for money

    Overall

    IP 146.200.x.x
    Owner since: more than 10 years
    Price: 60
    User profile: Semipro

    Cons: Terrible build quality and AF mechanism lacks precision and doesn\'t stand up to long-term use, sometimes jamming. Aperture cable can become faulty. Rear element is a cemented doublet which fogs up with time.

    Pros: Optics are extremely good for something so small, light, and cheap. Contrast and micro-contrast are both lower than my Sigma 105mm OS, but I prefer to have one of these on my camera as they are so much smaller and lighter. It\'s quite good at 3.5, with fairly obvious vignetting on full-frame, as well as some corner softness, noticeably sharper at 4.5, and excellent at 5.6 and 8 everywhere in the frame, and at all focused distances - this is easily good enough for general use as a super-portable 100mm.

    Summary: For most applications, I actively prefer it to much more expensive macro lenses but would love it had they made it more durable and reliable.

  2. Martin Graf
    Martin Graf 5 June 2020, 20:45
    Build quality
    Optical quality
    Value for money

    Overall

    IP 46.83.x.x
    Owner since: 1 month
    Price: 50 Euro
    User profile: Semipro

    Cons: has a cheap look and feel

    Pros: I use this lens as a cheap option for my Canon 6D. I had a Sigma 105mm Macro before, but that had a focus issue so I gave it back and bought this lens for the meantime instead. But not sure now if I want to give it away again! This lens works pefekt on my 6D - focus is on spot and for my purposes quick enough. Sharpness is already very good at f3.5 at close-ups but also for objects further away. I didn\'t expect that quality at all and ask myself if I really do need an original Canon Macro lens for my needs. Another great point is, it is so light. Last not least - no thief will really want to take a risk stealing your camera with that lens on it :)

    Summary: Together with my Canon 2.8/40mm I have a great and light travel equipment with very good picture quality which will hold up or even outperform the latest L-Zoom lenses. But that might be unfair - a prime should be able to do so - but 50 bugs for such great picture quality really makes you wonder.

  3. marc
    marc 16 May 2013, 20:57
    Build quality
    Optical quality
    Value for money

    Overall

    IP 2.171.x.x
    Owner since: 3 years
    Price: 100$
    User profile: Amateur

    Cons: plastic build, rising prices

    Pros: this lens is for this price one of the best ones. No problems with CAs'. very sharp lens

    Summary: if you can get it,buy it

  4. joe
    joe 5 April 2013, 21:19
    Build quality
    Optical quality
    Value for money

    Overall

    IP 2.171.x.x
    Owner since: 1 year
    Price: 120
    User profile: Amateur

    Cons: plastic-plastic-plastic rising prices, because trade has learned the good qualty

    Pros: f 8-11: you don't miss this lens for macro photos and take another with better results

    Summary: really very sharp

  5. klaus
    klaus 6 November 2011, 23:50
    Build quality
    Optical quality
    Value for money

    Overall

    IP 41.223.x.x
    Owner since: 3 months
    Price: 150
    User profile: Amateur

    Cons: the build,some people call it joghurtcup.... a bit noise,sometimes the autofocus hunts lenshood must be purchased seperatly most of the time care must be given to buy one which comes together with the matched achromat

    Pros: nice for portaits,100 mm the matched achromat is of good quality ideal for beginners and amateurs who want to start with macrophotography has become a cultlens,its very sought after...

    Summary: for beginners and amateurs who want to experiment with macro,and for people who are on a tight bugdet. Is a nice portraitlens samplepictues on flickr,just search for cosina 100 mm and jugde for yourself

  6. vietlh81
    vietlh81 6 October 2011, 14:39
    Build quality
    Optical quality
    Value for money

    Overall

    IP 193.48.x.x
    Owner since: 3 years
    Price:
    User profile: Amateur

    Cons: Cheap plastic, slow aperture, slow and noisy AF. Purple fringing. No Internal Focus. Need 1:1 adapter.

    Pros: Cheap, light, image is good

    Summary: Very cheap lens in good price

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