Rumors > EOS Bodies
The EOS-1D X & f/8
jacobpays:
Could the problem possibly be addressed by the DO TC's that have been patented and mentioned on this site?
nikkito:
we should wait until the 1D X mk II :P
John Thomas:
Generally, according to my kind of shoots, I like the specialisation of the machine. I think that leaving out the F/8 points will be payed back in terms of speed and accuracy of the AF engine.
Can anyone confirm this? Or perhaps there are other reasons to leave out the F/8 point(s)?
cbphoto:
I look at the Canon lens line-up and the only problem I see is when an extender is used. No Canon lens has a maximum aperture smaller than f5.6. Last century, I bought the 1.4x and 2x FD extenders and found the rendered IQ was lousy with all the recommended lenses. I used them only when absolutely needed, and never with pleasure. Although the EF extenders are supposedly better, I wouldn't use them; they're still a stopgap tool to be used when nothing else will work.
Besides, I can always march 5 miles out on the tundra with this or this. ;D
Instead of extenders, why not utilize an APS-C sensor camera? The 800mm f5.6 lens becomes a 1280mm f5.6 lens with zero loss in IQ.
Justin:
The MTF charts of the new super teles paired with the version III 2x and 1.4x extenders generally show little to no image degradation.
Also, although I understand your point about gaining more reach with an APS-C, it's just not true that using a 1.6x focal multiplier sensor equates to zero loss of IQ when compared to a 35mm full frame or aps-H sensor.
--- Quote from: cbphoto on October 22, 2011, 11:33:31 AM ---I look at the Canon lens line-up and the only problem I see is when an extender is used. No Canon lens has a maximum aperture smaller than f5.6. Last century, I bought the 1.4x and 2x FD extenders and found the rendered IQ was lousy with all the recommended lenses. I used them only when absolutely needed, and never with pleasure. Although the EF extenders are supposedly better, I wouldn't use them; they're still a stopgap tool to be used when nothing else will work.
Besides, I can always march 5 miles out on the tundra with this or this. ;D
Instead of extenders, why not utilize an APS-C sensor camera? The 800mm f5.6 lens becomes a 1280mm f5.6 lens with zero loss in IQ.
--- End quote ---
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