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Topics - well_dunno

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EOS Bodies / Canon EOS 5D Mark III preview with real world samples
« on: March 23, 2012, 02:32:17 PM »
Hi all,

dpreview just posted additional images:


EOS Bodies - For Stills / D4 sensor scores available at DxO
« on: March 20, 2012, 06:07:12 PM »
Hello all,

Just saw D4 sensor scores are available on DxO mark


Lenses / Canon EF 24-70 f/2.8L II
« on: February 07, 2012, 01:48:44 PM »
Hello all,

Have not thought thoroughly about the alternatives but just out of curiosity, how many of us remain interested in Canon EF 24-70 f/2.8L II?


EOS Bodies - For Stills / S and X
« on: February 01, 2012, 02:28:17 PM »
Hello all,

Perhaps a newbie question but anyway: S and X are used on some models by Canon as well as the "dark side". What are their meanings?  Are they used in the same sense by both brands?


Landscape / Northern lights today?
« on: January 24, 2012, 04:27:39 PM »
Hello everyone!

It looks like the solar storm yesterday has reached earth and we might be seeing decent amount of northern lights. Probably I am too far south to observe anything but was wondering whether anyone has captured any images which we could see...


Lenses / Diffraction: f-value or aperture diameter?
« on: January 11, 2012, 03:29:10 PM »
Hello everyone,

A question on diffraction: frequently  diffraction effect seem to be mentioned with reference to f-numbers, however, if I am not mistaken, diffraction effect negatively correlate with the diameter of the lens aperture and not with the f-number itself. As a result, everything else remaining equal, the effect should  be the same at 150 mm f/11 and 300mm f/22.

Just trying to get it clear for myself so any info/reflections are appreciated! :)


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