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REVIEW: SMC Pentax-M 50mm f/1.7

Reviews
Posted by Bengt Köhler Sandberg 2013-01-11

SMC Pentax-M 50mm f/1.7

Specs:

Lens:
50mm

Aperture:
f/1.7 to f/22
6 bladed aperure (Auto or Manual)

Closest Focus:
0.45m (1.55ft)

Weight:
190g

Mount:
Pentax K

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


Image quality

Wide open:
Great sharpness
Mild corner softness which is next to all gone by f/2.8
Vignetting

Great image quality at all apertures.

Analogue B&W film
SMC Pentax-M 50mm
                            f/1.7
Download full size image. Here (up to 5mb)
f/1.7 - f/2.8 - f/4 - f/5.6 - f/8 - f/11 - f/16 - f/22

Bokeh
Really nice!
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
SMC
                                                          Pentax-M 50mm
                                                          f/1.7

Flare
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
SMC
                                                          Pentax-M 50mm
                                                          f/1.7


Digital
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
Download full size image. Here (up to 5mb)
f/1.7 - f/2.8 - f/4 - f/5.6 - f/8 - f/11 - f/16 - f/22

Bokeh
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
SMC
                                                          Pentax-M 50mm
                                                          f/1.7

Chromatic aberration
f/1.7              
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
               f/11
SMC
                                                          Pentax-M 50mm
                                                          f/1.7


Flare
(
Flare video clip)
SMC Pentax-M 50mm
                                              f/1.7



Filming
SMC
                                              Pentax-M 50mm f/1.7



Sample
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
SMC
                                                          Pentax-M 50mm
                                                          f/1.7
SMC
                                                          Pentax-M 50mm
                                                          f/1.7


Build quality

Very good and solid.
Like the feel of it with nice and smooth focusing.
The aperture ring do feel a bit stiff and are not as nice as the older Takumar lenses on M42 mount.


Conclusion

Awesome little lens with great image and build quality.
Can get some ugly Chromatic aberration wide open which not that oncommon.


Thumbs up:
Image and build quality
Bokeh / Flare
Feel


Thumbs down:



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Technical Info

Analogue B&W film
Scanner: Plustek OpticFilm 7600i
Film: AGFA CINEREX (X-ray film)
Developer: Kodak D76

Digital
Canon 500D with lens mount adapter
Auto White Balance and ISO 100

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