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05/22/2003 10:20:46 AM · #1 |
| For some reason when I use the highest pixel setting on my camera I get more artifacts and blown out pixels (bright clusters). On half pixel setting I don't get anything noticable. On both settings I've been using 100 ISO and the least amount of JPEG compression. Any thoughts? |
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05/22/2003 10:28:30 AM · #2 |
can you post a sample?
have you checked with any of the user forums with your Toshiba?
did you look at the toshiba website?
i did a quick look on Google but didn't see anything.
good luck~ |
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05/22/2003 10:36:38 AM · #3 |
| Wild-ass guess with no evidence here, but is it perhaps interpolating to get that biggest setting (meaning, it doesn't have that many physical sensors, it's stretching it with software)? |
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05/22/2003 11:12:43 AM · #4 |
| Again this is a SWAG like Eloise's comment. I think what's happening is on the half pixel setting you are averaging out the noise. You can verify this by taking at highest resolution and then resizing in whatever photo editor you are using. You should see similar results. They may not be exactly the same because the interpolation algorithms will certainly not be identical between the camera and the editor. |
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05/22/2003 02:02:26 PM · #5 |
| Reduce the in camera contrast. I did that on my 10D and I have a lot of less blown out cases now. |
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05/22/2003 02:05:21 PM · #6 |
| You might also try changing the metering mode if you're using auto--exposure...I get fewer blown-out areas if I spot-meter of the brightest area. |
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05/25/2003 01:13:13 PM · #7 |
| Thanks to all who offered suggestions. I tried changing the contrast and sharpness to no avail: Normal Contrast/Sharpness Soft Contrast/Sharpness Notice the bright speck above the box. I'm beginning to think it's a bad pixel or a cluster because it shows up in the same spot all the time. I emailed tech support at Toshiba on the off chance they have a fix (I doubt it). Too bad there wasn't a provision for spot editting in such instances at DPC. You could put a cap on the number of pixels allowed to be editted, to cut down on abuse. But then how would you police it and why should you have to? Then again how could you really tell if someone did some minor spot editting? I'm all for honesty and integrity and will not to go outside the rules of DPC, I just can't afford a new cam. :) |
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05/25/2003 01:22:29 PM · #8 |
| That looks very much like a hot/stuck pixel to me. I had a similar problem with my G2 a while back, where one particular pixel cluster would always show up with a lovely red spot. It took a trip to the service centre to get rid of it, but (fortunately for me) it was under warranty at the time. Supposedly it just required a recalibration of the CCD or something to that effect. |
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