All Forum Comments
Comment by johnriley posted on K5, Kr, full frame (?) it's all to little too late at 14/09/2010 - 20:55
Comment by johnriley posted on K5, Kr, full frame (?) it's all to little too late at 14/09/2010 - 20:31
Comment by johnriley posted on What primes would we like to see? at 14/09/2010 - 16:06
Some people presumably did, given the existence of the FA35, FA43 and FA*200.
Although nobody thinks of it as such these days, the 43mm Limited is actually a kit lens. It first appeared in kit form with the MZ-3 film body.
Comment by johnriley posted on What primes would we like to see? at 14/09/2010 - 15:22
Comment by johnriley posted on FS : Macro kit NEW - Sigma Macro 105 EX + Sigma Ringflash EM 140 at 14/09/2010 - 15:18
but it really is nitpicking. if a shot at f/16 isn't sharp enough for you because of diffraction, you really need to think about how sharp you need your pictures to be
Lens "defects" are exploitable.
Comment by johnriley posted on Focus Shift on Stopping Down at 14/09/2010 - 14:49
The irony is that before the local major road had speed bumps and pinch points: 1 accident.
After: 18 accidents.
Comment by johnriley posted on Another pointless thread at 14/09/2010 - 14:46
Hang on! How does a teleconvertor turn a manual focus lens into an autofocus lens
Comment by johnriley posted on Any advice on choosing a AF teleconverter? at 14/09/2010 - 09:55
I've often been surprised when testing a lens (at 25x) that
the f/5.6 result is better than the f/8 result and it
shouldn't be? I usually take 4 shots at each aperture
and pick the best... refocusing for each shot. At f/1.4
to f/4 only 1 shot might be good. At f/8 all 4 are
usually identical due to DOF, but it could be identicaly
off on each shot.
Next time I'll try shifting the camera back and forth
+-15mm at f/8 (on a Novoflex rack)to see if it's
any better.
Comment by johnriley posted on Focus Shift on Stopping Down at 14/09/2010 - 09:54
Comment by johnriley posted on Uploading photos at 14/09/2010 - 07:43
