Olympus 17 1.8 Review from Lenstip

Started Nov 20, 2012 | Discussions thread
marike6
Senior MemberPosts: 5,070Gear list
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Re: Different charts...
In reply to amalric, Nov 20, 2012

amalric wrote:

I am not sure what types of targets Lenstip uses to determine resolution, but after seeing Robin's pictures in real life, I am beginning to wonder if above 50 LPMM the human eye can detect any difference.

Robin Wong, and indeed most people posting reduced size web samples almost always apply some PP, and sharpening.  You do bring up an interesting point about what the eye can detect, but if you've ever shot with say the PL 25 1.4 vs one of the kit lens like the Olympus 12-50, it doesn't take much pixel peeping to see a clear and significant difference in crispness, bokeh, color/contrast, etc.

Therefore other factors might come into play: evenness across the frame, absence of aberrations, colour signature, microcontrast, and the lens seems to have them in spades.

"Evenness across the frame" and "absence of aberrations", are you sure you read the same Lenstip review?  The list of "Cons" and the second lukewarm entry on the "Pro" list makes me wonder:

Pros:

  • small, very handy and solid casing,
  • decent image quality in the frame centre,
  • slight longitudinal chromatic aberration,
  • moderate coma,
  • good work against bright light,
  • efficient and accurate autofocus.
Cons:
  • very high distortion,
  • significant vignetting,
  • huge astigmatism, visible up to f/5.6 aperture,
  • modest accessory kit.
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