Guest paul j Posted November 20, 2012 Share Posted November 20, 2012 Hi all, i took some flats using a laptop on the end of the scope,i started processing my images in nebulosity but when i got to the flats it stopped and said flat file not of right colour type.im stumped as to why, my only thought is i got a few grubby marks on my laptop screen and could that be the problem? i never noticed them until i took the photos of the camera,im new to all this but slowly getting there ive never come across this problem before, i took the images on iso 1600 through my canon 1100d with the laptop tight up to the scope.and the files are in tiff format.any help be greatly appreciated. Link to comment Share on other sites More sharing options...
Perkil8r Posted November 20, 2012 Share Posted November 20, 2012 I'm not familiar with Nebulosity. Could it be that they are over or under exposed maybe? How far along is the main part of the histogram?? In an ideal situation it wants to be somewhere close to the middle of the graph. Dirt on the screen shouldn't really matter too much (within reason of course.) Link to comment Share on other sites More sharing options...
Guest Kheldar Posted November 21, 2012 Share Posted November 21, 2012 (edited) How did you get tiff images? RAW would be simpler if they came off the camera like that? I've only seen that error once, and that was because I forgot to debayer the flat files before attempting to stack. Edited November 21, 2012 by Kheldar Link to comment Share on other sites More sharing options...
Guest paul j Posted November 21, 2012 Share Posted November 21, 2012 I'm sorry my mistake I think they was raw when came of Camera and I attempted covert them to tif when I got the problem.I'm new to this only managed produce one other picture.I check the histogram next time too I never looked at that either.thanks Link to comment Share on other sites More sharing options...
Sheila Posted November 21, 2012 Share Posted November 21, 2012 How did you take the flats, did you use EOS utility, and when you put them into nebulosity how did you ask it to process them? i.e. colour or B & W Sheila Link to comment Share on other sites More sharing options...
T A WOW Posted November 21, 2012 Share Posted November 21, 2012 Astrophotography gives me a headache! Link to comment Share on other sites More sharing options...
Guest paul j Posted November 21, 2012 Share Posted November 21, 2012 Hi Sheila no didnt use eos i just put the laptop up against the scope end and had my canon camera on av iso 1600 and just kept pressing the shutter with a remote,im new to all this and yes its giving me a headache too :-) but i love it and determined to get over this hurdle, ive managed processing a photo not really done anything different or least i dont think so,asking about colour or black white i honestly couldnt tell you i never thought it gave u that option im gonna have to look into that.i just copied dions nebuslosity tutorial of astronomy shed. Link to comment Share on other sites More sharing options...
Sheila Posted November 22, 2012 Share Posted November 22, 2012 Just check and make sure you process as colour not B & W, that would have caused you a problem if you prcessed in B & W. Apart from that I am out of ideas LOL Sheila Link to comment Share on other sites More sharing options...
Guest paul j Posted November 24, 2012 Share Posted November 24, 2012 In got my processing finally sorted.it was a problem with my flats.I used a new set and everything went fine.just need clear night now and start imaging again. Link to comment Share on other sites More sharing options...
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