Winsor wrote:
>>
Well, if you want to see a photo that seems to put the lie to the can't use
wide angle lenses on a digital camera take a look at the example of the shot
with a 14mm lens on a Canon EOS 1Ds in this review:
http://www.fredmiranda.com/1Ds_review/index.html
<<
Yes... But the website does actually show lateral chromatic aberation as a
result of the sensor and wide lenses, although as might be expected it is both
lens and scene related as they describe:
>>(http://www.fredmiranda.com/1Ds_review/index_fullframe.html)
Overall, regardless of which wide angle lens you use with the 1Ds, you need to
be prepared to contend with the aberration issue. At least for now, unless a
new superhero L series lens is secretly being designed. It's not to say that
this can't be fixed in software. It can. But, this type of channel editing
compromises image quality, and calculations are difficult to manage especially
since there is no universal solution and you'll need to recalculate channel
shifting for each individual lens. <<
The most interesting abberation example is the somewhat hidden link entitled
"Here is a crop" (from the same page):
>>However, the same aberrations still pop up even with the best wide angle
>>lenses Canon produces, including the 24mm f/1.4L. It performed a tad bit
>>better than the 14mm since the lateral chromatic aberrations were only
>>apparent in high contrast images. Here is a crop from a full size image taken
>>at high noon with the 24mm f/1.4L.<<
Given the 1Ds has a smaller pixel than the 1D it is very likely it has worse
lateral abberations than the older 1D which has an overall smaller chip but
bigger pixels!
Regards,
Tim Hughes
TimHughes@xxxxxxxx
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