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Cosina Cosinon-S 50mm F1.8

Reviews Views Date of last review
2 28,673 Fri August 21, 2015
Recommended By Average Price Average User Rating
100% of reviewers $32.50 8.50
Cosina Cosinon-S 50mm F1.8

Cosina Cosinon-S 50mm F1.8
Cosina Cosinon-S 50mm F1.8
Cosina Cosinon-S 50mm F1.8

Cosinon-S 50mm F1.8

Focal length 50mm
Max. aperture f/1.8
Min. aperture f/16
Blades 6
Min. Focus 0.5 (m.)
Filter 49 (mm.)
Weight 190/6.7 (gr/oz)
Length 50/2.0 (mm/in)
Mount Type: Pentax K
Price History:

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Sort Reviews by: Date | Author | Rating | Recommendation | Likes (Descending) Showing Reviews 1-2 of 2
New Member

Registered: November, 2013
Posts: 8
Lens Review Date: August 21, 2015 I can recommend this lens: Yes | Price: $35.00 | Rating: 9 

Pros: very sharp lens
Cons: nearly nothing
Sharpness: 9    Aberrations: 8    Bokeh: 8    Handling: 8    Value: 10    Camera Used: k200,k-x   

very similar to Pentax lens 1.8/55

6/5 element construction.

++ very good color rendition,

+++ really very high sharpness, especially at f 5.6-11

+ very small CA's wide open, disappear if lens is stopped down a few

++ very good contrast

8.5 points

highly recommended
New Member

Registered: September, 2010
Location: Czech Republic
Posts: 12
Lens Review Date: August 4, 2011 I can recommend this lens: Yes | Price: $30.00 | Rating: 8 

Pros: Sharp even wide open, nice bokeh, no CA
Cons: Could be faster

Very good and sharp lens, my most used MF lens, great for portraits.

Some examples, all shots wide open:

Nelča by ricolek, on Flickr

Lukinek by ricolek, on Flickr

Forest in Modrá by ricolek, on Flickr

Kapky by ricolek, on Flickr
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