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Old 23-03-2012, 10:20 AM
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graham.hobart (Graham stevens)
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graham.hobart is offline
 
Join Date: Nov 2008
Location: hobart, tasmania
Posts: 2,241
tarantula

Here's some things to try-
cover view finder with red cellophane or tape when exposing - I had light leak that looked a bit like that,
Move camera USB or laptop connections away from power source- EM radiation from power boards etc can give you funny signals
Taking darks helps.
Still with all that I really like your M83- great shot!
Graz
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