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<blockquote data-quote="WayneF" data-source="post: 422821" data-attributes="member: 12496">It was a very good article indeed.&nbsp; Goes way deeper than most, showing better conclusions.&nbsp;&nbsp; It is indeed a dumb notion to NEVER exceed f/8.&nbsp;&nbsp; There are many times greater depth of field helps MORE than diffraction hurts.... even f/40 sometimes.&nbsp; And sometimes not.&nbsp; Try things, look at your results.It had only one weak point, at least I still have much trouble with this:<img src="http://www.scantips.com/g2/difract.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />How does he manage to get all the Airy disks aligned on the pixels so well?&nbsp;&nbsp; <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />I think they are more likely to be on a corner than the center (four corners, only one center).&nbsp; <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />The point is, the lens aperture creates the diffraction, and it is what it is, regardless of the sensor.&nbsp; The best job the sensor can do is to reproduce it well.A higher resolution sensor resolves detail better, diffraction too, but the pixel size does NOT affect diffraction.&nbsp; The area of the diffraction disk is a factor, but it is not about pixels.It was a good article, and his examples did say as much, yet he shows these dumb graphics.&nbsp; Would have been better without them.</blockquote>

[QUOTE="WayneF, post: 422821, member: 12496"] It was a very good article indeed. Goes way deeper than most, showing better conclusions. It is indeed a dumb notion to NEVER exceed f/8. There are many times greater depth of field helps MORE than diffraction hurts.... even f/40 sometimes. And sometimes not. Try things, look at your results. It had only one weak point, at least I still have much trouble with this: [IMG]http://www.scantips.com/g2/difract.jpg[/IMG] How does he manage to get all the Airy disks aligned on the pixels so well? :) I think they are more likely to be on a corner than the center (four corners, only one center). :) The point is, the lens aperture creates the diffraction, and it is what it is, regardless of the sensor. The best job the sensor can do is to reproduce it well. A higher resolution sensor resolves detail better, diffraction too, but the pixel size does NOT affect diffraction. The area of the diffraction disk is a factor, but it is not about pixels. It was a good article, and his examples did say as much, yet he shows these dumb graphics. Would have been better without them. [/QUOTE]

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