Restless — An Alex Hall Portrait (Full Film) | Faction Skis

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October, 2024

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Sensor Problem?

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Alex=God
Posts: 2422 - Karma: 139
getting blue and red dots (see picture) what is it?


Click for larger image
Aug 15 2009 4:07PM
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chipkalback
Posts: 2255 - Karma: 30
hm, is that a screenshot of the photo or did you export and upload that photo? typically it means it's a dead pixel on your monitor, but i've never seen it show up on a photo before.
Aug 15 2009 5:08PM
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Alex=God
Posts: 2422 - Karma: 139
Thats the original but sized down. So yeah its not on my monitor
Aug 15 2009 5:11PM
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1080ski
Posts: 4424 - Karma: 191
it looks bigger than a pixel, so maybe its small specks of dust?
Aug 15 2009 5:53PM
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1080ski
Posts: 4424 - Karma: 191
also maybe this will help explain it. (i googled "hot pixel")

http://webpages.charter.net/bbiggers/DCExperiments/html/hot_pixels.html
Aug 15 2009 5:55PM
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mnjib
Posts: 5592 - Karma: 362
they are hot pixels. when you use high iso or do long exposures its what happens. your cameras fine.
Aug 15 2009 5:57PM
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Alex=God
Posts: 2422 - Karma: 139
alright just making sure. I only used a 400 iso but i guess the exposure was to long
Aug 15 2009 6:01PM
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mnjib
Posts: 5592 - Karma: 362
to long? this just happens when you do a long exposure its the CCD over heating there is nothing wrong or bad about it. just edit it out or use a program like Lightroom which removes hot pixels automatically.
Aug 15 2009 6:05PM
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chipkalback
Posts: 2255 - Karma: 30
400 isn't too high but when you're doing long exposures you'll really benefit from using the lowest iso possible. i usually let the shutter hang open longer or drop the aperture a bit if i'm wanting more light. the worst thing you can do is bump up the iso if you're trying to brighten up a long exposure. i usually leave the iso at 100 and adjust accordingly from there.
Aug 15 2009 6:51PM
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Six.0.Tree-ski
Posts: 4059 - Karma: 67
no silly, those are just red and blue stars!
Aug 15 2009 7:42PM
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panojibber
Posts: 3382 - Karma: 216
You're all wrong. Aliens.
Aug 15 2009 8:33PM
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