In a message dated 05/12/02 12:04:48, [EMAIL PROTECTED] writes: << But are the shots with the 20mm excellent quality? I have been looking at various tests with pre production and production EOS1DS cameras and there have been a few comments obout wide angle lenses not performing well. I have the 16-35mm and 24mmTS lenses and am weighing up the merits of investing in an EOS1DS >>
Hi Larry Earlier this week I tested my 1Ds against one of my 1v's using the 24 TSE and 24 1.4L for the very reasons you suggest. Many reviews or previews have raised a flag of sorts about how chromatic aberrations appear to be 'amplified' when used with a full frame DSLR. Fearing the worst I performed identical tripod mounted tests of an urban scene which involved leafless trees against a white sky,branches of varying sizes appearing in the corners. Provia 100 was scanned on an Imacon Precision ll at a resolution that resulted in a file size that matched the 1Ds's output. Comparing the results at 100% on screen clearly indicated that fairly severe red/cyan 'fringing' was apparent in the corners of the frame (along the branches) of the 1Ds capture. Fortunately (unfortunately??) fringing of similar magnitude appeared in a similar place on the scanned film. As I see it,and I am in no way an expert in these matters,the exaggerrated chromatic aberration issue is not as serious as initially feared. I am now sleeping easy! In addition,the 1Ds image was visibly sharper (light USM was applied to the scan and low in camera sharpening was applied to the 1Ds image) I have not tried the 16-35 on the 1Ds but I would assume that since it has exhibitted fairly serious fringing when I have scanned film using this lens in the past then I would deduce that it should be equally apparent on the 1Ds. Hope this helps in some way. Mark Tomalty =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
