Canon EOS 350D with Super-Multi-Coated Takumar 3.5/135mm

Veijo Vilva

(Page under Construction)

  • FOV corresponds to a 215mm lens on a 35mm camera

  • a very sharp lens
  • very good multicoating
  • very high quality, all metal construction
  • very smooth focusing

  • the lens is mounted with an M42-to-EOS adapter
  • manual focus
  • AV (aperture priority) or M (manual)


  • my test procedure isn't very rigorous
  • bad results may be caused by bad focusing as manual focusing in dim lighting isn't any too easy when the DOF for this level of expected sharpness is just a few millimeters in either direction
  • the backs of the books aren't at exactly the same depth, the maximum difference is about one inch. Only a few books at the center and at the upper right-hand corner have been aligned - roughly.
  • the test only shows that the specific tested lens is at least as good as my results -- even that individual lens might be better, and others of the same make and model may be better or worse
  • anyhow, the equivalent magnification of the 100% crops is just plain sick, i.e. about 48x on a typical 17", 1024x768 CRT. Normally, 8x has been considered a reasonable maximum for critical sharpness from film. At 48x magnification, a 35mm film frame would be about 172cm (68") wide, and even a 1.6x crop factor dSLR frame would be 107cm (42") wide!

Who Would Complain About the Sharpness? (Full-Size High Quality JPEG, 2.7Mb)
ISO400, f/5.6, 0.3s. Raw image converted with dcraw (Auto White Balance).

A 100% crop from near the upper right corner:

Test Photos at f/3.5

Note: All shots hand-held

(compare with a photo taken with a Schneider-Kreuznach Radionar 4.5/105)
The bokeh isn't quite as nice probably due to over-correction of the lens.
The here rather faintly visible colour aberrations can get rather nasty.

(A full size copy)

(compare with a photo taken with a Schneider-Kreuznach Radionar 4.5/105)

(compare with a photo taken with a Schneider-Kreuznach Radionar 4.5/105)

A 100% crop from the above photo:

(compare with a corresponding crop from the Schneider-Kreuznach Radionar photo.
This crop looks worse because of the shallower DOF, unfavourable bokeh effects,
and the purple and green aberrations completely missing in the Radionar crop.)

A 100% crop displaying the rather bad bokeh of an over-corrected lens


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