orjanf Posted February 8, 2008 Share #1 Posted February 8, 2008 Advertisement (gone after registration) Pixel Fixer | Hot pixel removal utliity beta version for M8 available by request Link to post Share on other sites More sharing options...
Advertisement Posted February 8, 2008 Posted February 8, 2008 Hi orjanf, Take a look here Hot pixel solution advertised. I'm sure you'll find what you were looking for!
Chuckcars Posted February 10, 2008 Share #2 Posted February 10, 2008 No way, jose!!! Link to post Share on other sites More sharing options...
msadat Posted February 10, 2008 Share #3 Posted February 10, 2008 that is really cool, thanks Link to post Share on other sites More sharing options...
Hookeye Posted February 10, 2008 Share #4 Posted February 10, 2008 That is interesting Orjan. Thanks for posting. Which brings up another thought: It would probably have been possible for the camera firmware to do this automatically, if a similar function was built into the firmware. If the manufacturers had thought of that - they would have saved a lot from not having to replace sensors still under warranty. Link to post Share on other sites More sharing options...
orjanf Posted February 10, 2008 Author Share #5 Posted February 10, 2008 I suspect that the facility is there in the firmware even if it is not available to end users. I doubt that they actually replace the sensor for a faulty pixel or ten. I haven't had any reply yet to my email and so have not been able to download and try the program but it is the weekend and some people probably have a life. Link to post Share on other sites More sharing options...
DaveB Posted February 10, 2008 Share #6 Posted February 10, 2008 I haven't noticed any hot pixels nor have I done a formal test with my M8. Have other people been having problems with this? Any camera will tend to generate hot pixels at high ISO's combined with long exposures. I would imagine M8 users would have a rather low tolerance for it. I haven't seen a great deal discussed about sensor problems other than some complaints about the LCD which is a separate issue. Link to post Share on other sites More sharing options...
Englander Posted February 10, 2008 Share #7 Posted February 10, 2008 Advertisement (gone after registration) I believe that if you want to see hot pixels, all you need to do is a long duration exposure with noise reduction and watch your lcd screen before the firmware does its corrections. Joe Link to post Share on other sites More sharing options...
johnbuckley Posted February 10, 2008 Share #8 Posted February 10, 2008 I haven't noticed any hot pixels nor have I done a formal test with my M8. Have other people been having problems with this? Any camera will tend to generate hot pixels at high ISO's combined with long exposures. I would imagine M8 users would have a rather low tolerance for it. I haven't seen a great deal discussed about sensor problems other than some complaints about the LCD which is a separate issue. I just sent my "backup" M8 to New Jersey to get this fixed. It's very strange. I had no problems with a hot pixel for the first, oh, 1000 images, but then suddenly, at Christmas, all my low-light, slow, ISO 320 and above photos began to show a blue line, just like the one illustrated in the software demo. Would love to hear theories why this would suddenly happen. I'm glad I sent the camera in, I think, because it must be fixed. Having said this, glad to know there is a software solution. JB Link to post Share on other sites More sharing options...
orjanf Posted February 11, 2008 Author Share #9 Posted February 11, 2008 Follow-up I received download instructions and downloaded the M8 beta version of Pixelfixer. The tool for detecting hot pixels is good and the program seems to run well and quickly (Windows 2000 on VMWare Fusion, MacBook Pro). It does map out the hot pixels. However Adobe ps raw and Lightroom also do this automatically, the problem is with the line caused. There is a checkbox for 'This hot pixel causes a "hot strip"' . When checked the program attenuates the line but does not completely remove it, at least on the three files I tried. It seems to me that this mapping out needs to happen be in the firmware as the dmg is written to be effective. The photoshop action I've been using works better although it is by no means perfect The enclosed photos are of an interesting blank wall underexposed and unfocused at ISO 1250 1/60 sec All were processed the same way - converted to 8-bit grayscale and levels set to 20-0.5-80 in an attempt to accentuate the line. I have emailed the author of the program and will post if he sends any updates/improvements or suggestions. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/44852-hot-pixel-solution-advertised/?do=findComment&comment=479668'>More sharing options...
orjanf Posted February 11, 2008 Author Share #10 Posted February 11, 2008 last followup: The programmer, Thomas Comerford, responded very quickly with an updated version which works perfectly Link to post Share on other sites More sharing options...
howard_cummer Posted February 12, 2008 Share #11 Posted February 12, 2008 After about 1000 pictures on my replacement M8 it developed a pixel line like that illustrated in the photos already posted. I sent it to Solms via the local agent and it was returned to me in about 10 days. I suspect the dead pixels were mapped out but perhaps the CCD was replaced - I don't know for sure. On my old RD 1's there was a pixel mapping program in the "S" software update which let you extinguish dead pixels. This is perhaps available with the M8 as well but just cannot be user sourced. Link to post Share on other sites More sharing options...
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