bideford Posted December 23, 2013 Share #1 Â Posted December 23, 2013 Advertisement (gone after registration) Just taken a few test shots with a 10 stop ND filter and have noticed a faint single line presumably caused by a dead/hot pixel - similar but not as noticeable as the dreaded red line issue at high ISO on my old M8.2. Â Only occurs with long exposures (noticeable on 5 sec and 45 sec) but cannot see any trace on normal exposures at (thankfully) any ISO. I have not had time to test properly but perhaps it is accentuated with the secondary noise reduction (shutter closed) action on long exposures - or maybe simply the extended exposure picks out the issue - as it does with any dust particles on the sensor that would go unnoticed on normal exposures. Â Guess it is off back to Solms after Christmas! Link to post Share on other sites More sharing options...
Advertisement Posted December 23, 2013 Posted December 23, 2013 Hi bideford, Take a look here Long exposure and dead/hot pixel line problem. I'm sure you'll find what you were looking for!
bideford Posted December 23, 2013 Author Share #2  Posted December 23, 2013 1:1 crop below of line - adjusted contrast etc to make it easier to view.  It is very faint - only found it when removing the dust spots - not like the usual line (as posted by arvin recently).  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/218950-long-exposure-and-deadhot-pixel-line-problem/?do=findComment&comment=2493738'>More sharing options...
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