All Forum Comments
Comment by Algernon posted on Happy Birthday *istD at 05/08/2017 - 11:49
http://theonlinephotographer.typepad.com/the_online_photographer/2017/07/two-mor...
The original 43mm was considered superior to the 50mm's.
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Comment by Algernon posted on SMC A50mm f1.2 vs FA 43mm f1.9 limited at 04/08/2017 - 08:44
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Comment by Algernon posted on Quiz....Dog or tree stump ? at 04/08/2017 - 08:33
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Comment by Algernon posted on File transfer: USB cable or remove SD card? at 29/07/2017 - 09:31
He also has a girlfriend named Beer!
That's what I call butch!
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Comment by Algernon posted on UPGRADING TO FULL FRAME at 28/07/2017 - 12:24
Comment by Algernon posted on Brooklyn Beckham and his Pentax MX at 26/07/2017 - 15:49
Still not much use unless you have some sort of micro adjustment on the lens focus to get within +/- 7mm. A focus rack is easier, but you still have the problem that it will probably only be correct at that one distance.
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Comment by Algernon posted on Focusing issues on Pentax cameras at 26/07/2017 - 13:47
Anyone who ever did printing with an enlarger knows that you have to open the lens fully to get exact focus even when using a grain magnifier.
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Comment by Algernon posted on Focusing issues on Pentax cameras at 26/07/2017 - 12:43
The most accurate way to focus is to use live view. Either using the Contrast-Detect AF system, or by manually focussing and using the screen zoomed at 100%. This is because you are then detecting the focus point directly on the cameras sensor.
http://www.slrgear.com/articles/focus/focus.htm
Summary at end...
"While the overall results were much better than with the other focusing methods though, the worst-case example was still 22% high, well within the "unacceptable" range. Given that, manual focusing via even a highly-magnified Live View display simply isn't reliable enough to use for lens testing."
And he used a powerful magnifying glass as well
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Comment by Algernon posted on Focusing issues on Pentax cameras at 26/07/2017 - 12:04
Most of my tests are MF based on the BEEP. There's usually a beep moving in towards the target and another beep moving backwards into the target with about 25mm between the two. You have to decide which one to use. I normally set it so that I catch the beep moving into the target. +/- 7mm is usually possible.
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Comment by Algernon posted on Focusing issues on Pentax cameras at 26/07/2017 - 11:23


So maybe that's what you like
Nice shots Gary.
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