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REVIEW: Yashica Yashinon-DX 50mm f/1.7

Reviews
Posted by Bengt Köhler Sandberg 2012-09-28

Yashica Yashinon-DX 50mm f/1.7

Specs:

Lens:
50mm

Aperture:
f/1.7 to f/16
6 bladed aperure

Focus:
Infinit to 0.5m (1.7ft)

Mount:
M42

Covers:
Standard 35mm film size (24×36 mm negative)


Image quality

Very sharp even wide open and corner softness is fairly mild and visible to f/4.
Lens renders nicely at all apertures.

Analogue B&W film
Yashica Yashinon-DX
                            50mm f/1.7
Download full size image. Here (up to 5mb)
f/1.7 - f/2 - f/2.8 - f/4 - f/5.6 - f/8 - f/11 - f/16

Bokeh
Can look awful in some occasions and good in others.
Yashica
                                                      Yashinon-DX 50mm
                                                      f/1.7
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7


Digital
Pictures taken with a Canon 500D at ISO100 and I used a M42 to Canon mount adapter
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7
Download full size image. Here (up to 5mb)
f/1.7 - f/2 - f/2.8 - f/4 - f/5.6 - f/8 - f/11 - f/16

Bokeh
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7

Sample
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7
Yashica
                                                          Yashinon-DX
                                                          50mm f/1.7




More sample images can be found at:
http://www.sample-image.com/yashica-auto-yashinon-dx-50mm-f1-7/




Filming
Yashica Yashinon-DX
                                            50mm f/1.7

Build quality

Very good and solid.
Also have a great feel to it.


Conclusion

Build and image quality is really great exept but the bokeh is not always the best looking.
However one thing that might be a problem is that the back lens goes closer to the mirror than most other M42 lenses do.
This can result in some cameras mirror to hit the back of the lens when focused to infinity.
Hade this problem with a Pentax Spotmatic and a Fujica ST701.
But works great on my Canon 500D, Chinon CS or my two Yashica M42 SLR.
Don't think you ever find this problem on a cropped sensor digital SLR but can be on a full frame.

Thumbs up:
Image and build quality
Feel

Thumbs down:
Bokeh
Mirror can hit the lens on some cameras



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Yashica Yashinon-DX 50mm f/1.7

Technical Info
Scanner: Plustek OpticFilm 7600i
Film: Rollei RPX 100
Developer: Kodak D76

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