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I've tried doing long exposures using my sony a300, and in some cases, I've noticed that weird coloured pixels appear. any ideas what that could be? I use lightroom for my raw files, but it only seems to happen on long exposures.
Hot Pixels...expected on most digi long exposures, especially at higher ISO. Just imagine you've shot it on film and you have to clone the dust from your scans.I've tried doing long exposures using my sony a300, and in some cases, I've noticed that weird coloured pixels appear. any ideas what that could be? I use lightroom for my raw files, but it only seems to happen on long exposures.
Hot Pixels...expected on most digi long exposures, especially at higher ISO. Just imagine you've shot it on film and you have to clone the dust from your scans.
For long exposures, I mostly use one of these - pain in the arse camera:
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And often one of these, focusing at night is fun:
[imghttp://collectiblend.com/Cameras/images/Graflex-Crown-Graphic.jpg[/img]
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Aye, I do find the Adobe Raw seems to cut down on them a bit like from RAW-JPG conversions. Sure there'll be some hot pixel removal software around. I think having noise reduction activated on your camera helps too, although normally doubles exposure time. Not good if you're doing a 3hr exposure!all part of the fun man! so i take it these hot pixels are down to the camera, rather than software then? I think i'd be too scared to leave the house with those cameras you've got so i might just have to put up with it for now.
they're rather expensive them cameras
Aye, I do find the Adobe Raw seems to cut down on them a bit like from RAW-JPG conversions. Sure there'll be some hot pixel removal software around. I think having noise reduction activated on your camera helps too, although normally doubles exposure time. Not good if you're doing a 3hr exposure!
Surprisingly not, the two of them combined would probably still add up to less than a mid range DSLR body...
Aye, I do find the Adobe Raw seems to cut down on them a bit like from RAW-JPG conversions. Sure there'll be some hot pixel removal software around. I think having noise reduction activated on your camera helps too, although normally doubles exposure time. Not good if you're doing a 3hr exposure!
Surprisingly not, the two of them combined would probably still add up to less than a mid range DSLR body...
Aye, I do find the Adobe Raw seems to cut down on them a bit like from RAW-JPG conversions. Sure there'll be some hot pixel removal software around. I think having noise reduction activated on your camera helps too, although normally doubles exposure time. Not good if you're doing a 3hr exposure!
Surprisingly not, the two of them combined would probably still add up to less than a mid range DSLR body...
Slide film works out about £3-4 per roll of 120 for process only, maybe a little bit less for C41. Price of film on top of it yer looking at 6-7 a roll maybe, not bad I reckon. Or B&W is massively cheaper if you do it at home. I'd say go for it!How much is the film and processing on those Andy? Now I've got a set of 6x7 lenses (which I use with my CCD camera) I've been tempted to get a 6x7 body and some film to clart about with.
Slide film works out about £3-4 per roll of 120 for process only, maybe a little bit less for C41. Price of film on top of it yer looking at 6-7 a roll maybe, not bad I reckon. Or B&W is massively cheaper if you do it at home. I'd say go for it!
I just scan the negs once they're processed...think thats what you meant?Cheers matey. At what stage do you scan?
I've done a bit of B&W processing before and could put up with processing the film, but doing prints is a pain in the arse (would also have to shell out for an enlarger).
I just scan the negs once they're processed...think thats what you meant?