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Message: <blockquote data-quote="adox66" data-source="post: 262935" data-attributes="member: 17861">Just thought Id give a quick update on this after changing cameras.Firstly, I`m delighted with the D7100. Love having most of the settings available at the touch of a button.Although Ive had the camera about 3 weeks now, it was only at the weekend that I got a chance to take some long exposures with it.The good news is the images were nice and clean, noise wise, with none of the issues I was having with the D3200. Now whether that is down to the camera body or improved technique, or a combination of both, I dont know, but suffice to say I am very happy.I did have a little panic initially when I noticed a red band across some of the long exposures. It was around the middle of the frame and went the whole way across, not in all of them and the ones that it was in was at varying degrees.Anyway, yesterday when at home(after being on a day trip away with the camera shooting on Saturday) I thought I would investigate more and see if I could reproduce this red band and indeed find a source of the problem.I took the camera out the back garden and took some 30 second shots of a grey brick wall with a 10 stop filter. Straight away the band was there. I was going to work my way from the front and try and cancel out causes, starting with the filter, then looking at the lens and finally the body.i checked the big stopper for any flaws etc or breaks in the seal, which may be letting light in but everything was fine. Also checked I was threading the filter correctly into the holder, that it wasnt at an angle, with one side sitting in the nearest slot and the other side accidentally in the outer slot, but all was fine there.Then it dawned on me. maybe it was light leakage from the viewfinder. Although I dont think I ever had that issue with the D3200, I remembered reading about being advised to cover it on here.Took the same shot again with my hand covering the viewfinder and hey presto, perfectly exposed image with zero red banding.I was actually delighted that it was something small like that and not something more serious.I presume this is normal for this body? I will certainly have to cover the viewfinder constantly with any long exposures. Its not a big deal but just want to make sure this is perfectly normal for this camera? I am a little confused as to how light is leaking in through the viewfinder when the camera is shooting in Live View, thus "closing" the viewfinder.Also the included eyepiece cover in the box looks like it would be a bit of a pain to use. I`m thinking of just improvising, use a bit of card or blue tac or even my hand. What are you guys using to cover the viewfinder(presuming like me, you do have to cover it).</blockquote>

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