All Forum Comments
Comment by Algernon posted on Lens calibration - Focus Tune software at 29/04/2013 - 18:28
keep giving the excuse that it's a 1950's photograph
PS Do you know where I can get a set of contacts for
a 1950 Lea Francis V8?
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Comment by Algernon posted on 1950 Vs 2013 Mash-up at 29/04/2013 - 18:23
Comment by Algernon posted on new Ricoh gr camera has clues to upcoming Pentax models? at 29/04/2013 - 18:12
useful...... because that's all they've allowed for
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Comment by Algernon posted on Stopping down from max aperture takes two clicks of e-dial at 29/04/2013 - 18:11
There were quite a few Goths who came to this newsgroup
last year or the year before very annoyed about having
their photos taken
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Comment by Algernon posted on Street photography manners at 29/04/2013 - 12:46
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Comment by Algernon posted on In pictures: Bert Hardy at 28/04/2013 - 21:28
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Comment by Algernon posted on Street photography manners at 28/04/2013 - 13:52
Well done the BBC putting their titles over the bottom of
works of art!
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Comment by Algernon posted on In pictures: Bert Hardy at 28/04/2013 - 13:49
Since this picture I've also stuck a vertical piece on.
It's quite easy to see if the focus is correct what are actually print dots appear as 45 deg lines
(even though they are dots ) I've also
deliberately let dust stick to the tape which
can't be seen when OOF.
This also has the advantage that I can test 'trap/catch focus'
by racking the camera on a focus rail.
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Comment by Algernon posted on Lens calibration - Focus Tune software at 28/04/2013 - 10:39
This was my test with the DFA 100mm f2.8 macro on the K-5:
I focussed on the line 'However Nurse Todd' but the image would lead you to believe it was three lines up from that as it was back focussing.
John K
So it's possible that you are focusing on the line above or the line
below.
It's better to focus on something parallel to the back of the camera
as per the lens align jig or even a vertical box.
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Comment by Algernon posted on Lens calibration - Focus Tune software at 28/04/2013 - 09:50
doing the AF ADJ on Ricehigh's site. I can't find it
at present, but anyone with half a brain could easily
figure it out for themselves
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