All Forum Comments
Just look at the 3 separate channels to make sure that none of them are clipped/overexposed. They only line up in the left/right direction on a grey subject. If you have a lot of light blue it will be to the right.
The combined (white) histogram is misleading as far as exposure is concerned..... it's explained on the web somewhere, but I haven't bookmarked it.
EDIT: If you search Google loads of sites deal with it.
I can't see the one I looked at, but this one seems to
explain it and there seems to be a discussion below:
link
-
The combined (white) histogram is misleading as far as exposure is concerned..... it's explained on the web somewhere, but I haven't bookmarked it.
EDIT: If you search Google loads of sites deal with it.
I can't see the one I looked at, but this one seems to
explain it and there seems to be a discussion below:
link
-
Comment by Algernon posted on Histogram at 15/04/2012 - 08:50
Usually 1:1, but because a 1:4 Zoom lens can be printed easily
at 1:1 (4x enlargement) that can be called a macro as well
at 1:1 (4x enlargement) that can be called a macro as well
Comment by Algernon posted on true macro! at 15/04/2012 - 08:33
Comment by Algernon posted on Pentax/Ricoh putting prices up at 14/04/2012 - 20:51
For testing take at least 4 shots at 25x focal length with the 1.4x attached i.e. about 10.5m. Use magnified LV and AF for the shots.
Use something with fine detail as a target.... postage stamps... non-uk banknotes etc.
Mark on the wall the left and right sides of the viewfinder frame with a bit of Blu-Tak or sticky tape. Remove the TC and move the tripod in until the marks line up with the left and right of the frame. Should be about 7.5m. Take at least another 4 shots.
Compare with a side by side view at 100% (1:1) using a viewer such as the free Farstone Viewer. Capture screen with PrtSc if needed.
Use something with fine detail as a target.... postage stamps... non-uk banknotes etc.
Mark on the wall the left and right sides of the viewfinder frame with a bit of Blu-Tak or sticky tape. Remove the TC and move the tripod in until the marks line up with the left and right of the frame. Should be about 7.5m. Take at least another 4 shots.
Compare with a side by side view at 100% (1:1) using a viewer such as the free Farstone Viewer. Capture screen with PrtSc if needed.
Comment by Algernon posted on DA*300mm + Kenko PZ-AF 1.5x SHQ converter at 14/04/2012 - 10:43
Surprised no ones bought this It's just like
a digital, but it uses film, even has the two wheels
a digital, but it uses film, even has the two wheels
Comment by Algernon posted on FS: Z-1 and LENSES KIT, extraordinary :D at 14/04/2012 - 09:37
Comment by Algernon posted on What is the use of a prime ? at 14/04/2012 - 08:33
This shot was well underexposed. the original was just
black, but recovered very easily in Adobe RAW.
No noise reduction applied.
Click pic to see full size (1000 pixels wide)
https://www.pentaxuser.com/photo/user-11130/nuthatch-30599
_
black, but recovered very easily in Adobe RAW.
No noise reduction applied.
Click pic to see full size (1000 pixels wide)
https://www.pentaxuser.com/photo/user-11130/nuthatch-30599
_
Comment by Algernon posted on HDR setting or exposure bracketing at 12/04/2012 - 19:07
they paint it black/gray