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Old 07-06-2008, 08:28 AM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,704
Interesting comparison - up sampling or x2 converter?

Hello,

Here is an interesting comparison between up sampling a photo versus using an x2 teleconverter. I found the results quite surprising – I didn’t expect such a variation is overall image quality. The Canon x2 EF II certainly shows a very strong performance, converting the 400mm F5.6 into an 800mm F11 telescope.

Photos taken using a tripod mounted 40D, on 6th June 2008, within a few seconds of each other. Raw images opened and cropped in CS3 with a smart sharpen (100 at 0.5).

Cheers

Dennis
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