DPReview.com is closing April 10th - Find out more

And then it started to rain…

Started Dec 28, 2016 | Photos thread
Hen3ry
OP Hen3ry Forum Pro • Posts: 18,218
Re: And then it started to rain…

vallecano wrote:

Geoffrey:

I have little experience and even less with m4/3 so maybe my question is not applicable. I thought that diffraction in m4/3 started around f/8 and these images are at f/14, and I don’t see apparent loss in sharpness. Can you explain this for me?

Really like these, especially the color.

Thanks, Earl. I would suggest there are three things here:

  1. Lots of people worry way too much about diffraction.
  2. Diffraction has to do with the size of the hole through which light is reaching the sensor. Since f-stops are a ratio of the focal length, f14 on a long telephoto lens is a much bigger hole than f14 on (say) a 9mm lens. Diffraction is not an absolute, it is relative.
  3. These pix are reduced in size significantly and viewed quite small, so the effects of diffraction can be lost. And thattakes us back to 1. above!
-- hide signature --

Geoffrey Heard
Down and out in Rabaul in the South Pacific
http://rabaulpng.com/we-are-all-traveling-throug/i-waited-51-years-for-tavur.html

 Hen3ry's gear list:Hen3ry's gear list
Panasonic Lumix DMC-GX7 Panasonic G85 Olympus M.Zuiko Digital ED 9-18mm F4.0-5.6 Olympus M.Zuiko Digital 45mm F1.8 Panasonic Lumix G X Vario PZ 45-175mm F4.0-5.6 ASPH OIS +7 more
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow