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Experiments - Capital Adventures
May 11th, 2013
08:27 pm
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Experiments





















Yeah, I dunno that this much technical limitation is doing it for me. Even with the tiniest pinhole I can possibly make there's a lot of blur (actually I should do the maths and work out whether that's diffraction or not). Also, every speck of dust on the sensor is making it's presence felt. Those would be the black spots in the sky, and I could edit them out, but not for this purpose.

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From:edm
Date:May 11th, 2013 09:19 am (UTC)

Tiny holes

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Those are pretty good shots: pinhole cameras were never amazingly sharp anyway. And yes pinhole apertures are definitely small enough that defraction will be be a non-trivial issue (I think that's a large part of why they're never amazingly sharp -- like cheap plastic lenses one has to call it "artistic" rather than a flaw, or go invent something else!).

BTW the "dust delete data" option in most DSLRs is practially made for that sort of purpose -- in theory you just take a shot against an evenly lit untextured surface and tell the camera to use that as a dust reference. For in camera JPEG it should then be auto applied. (For RAW it is up to the RAW converter to do that.)

Interesting experiment.

Ewen
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From:dianavilliers
Date:May 14th, 2013 10:22 am (UTC)

Re: Tiny holes

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Yeah, I know that my camera has that ability. I just need to work out how to make it go, which shouldn't be too difficult, if I decide to persist with this sort of artistic.
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From:sarahdotcom
Date:May 13th, 2013 09:50 am (UTC)
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I like it!

Weirdly, your earlier posts have disappeared from my friends page.
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From:dianavilliers
Date:May 14th, 2013 10:23 am (UTC)
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How odd. I'm still seeing them...
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From:sarahdotcom
Date:May 14th, 2013 03:50 pm (UTC)
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I can still see them on your page, just not mine!
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