Helios-40 85mm f/1.5 - Sample Images
Info and Reviews:
Introduced: 1957 - 1969
Optical design: 6 elements in 4 groups
Lens mount: M39 (Zenit)
Covers: Full-frame (24×36mm)
More info:
http://allphotolenses.com/lenses/item/c_8.html
Review:
Only found reviews of the later M42 version and there are very small changes between these two.
http://www.photozone.de/pentax/149-helios-40-2-85mm-f15-m42-to-pentax-review--test-report
http://www.bobatkins.com/photography/reviews/helios-40-2_85mm_f1-5_review.html
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