Search results for "diffraction"

Diffraction on smaller aperture values TEST

This post was continued with some tests: https://www.dreamstime.com/thread_29668Test finished (at least, a preview).http://alveraphoto.blogspot.ro/2012/08/diffraction-on-smaller-aperture-values.htmlTest subject: a small part of acrylic on canvas covered with varnish (lake protection). For next test I will use a towel (thanks Afagundes).Test conditions: Nikon D90 body, Nikkor 35mm f/1.8 AF-S DX, f/1.8 - f/22, Giottos MT9361 tripod, exposure delay mode ON (anti-vibration).Tethered shoot... continue reading

Diffraction Limited?

I've been looking into a new body and have decided not to go with the latest Canon 50D.I'm turned off by the high file size, but also because we seem to be getting into territory where more megapixels are making some things worse.While I haven't tried either the 50D or 40D for any length of time, and am therefore not qualified at all to talk about ultimate image quality, I did encounter a few discussions on diffraction, and the impact of smaller pixels.As someone who shot film pre-digital,... continue reading

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