kev533 Posted April 29, 2013 Share Posted April 29, 2013 During a photographic course I completed recently I had a Nikon D70 converted to only take IR photography. That is what the red moon is attached, not PS. Is there a use I can put my camera to in regards to using it for astro imaging? Also, I can focus my canon 5dmk2 when its attached to my SW200p via a t mount, but I cannot seem to focus my IR modded Nikon, any help would be appreciated. The photo was taken via camera lens and tripod. Kev Link to comment Share on other sites More sharing options...
razvans Posted May 1, 2013 Share Posted May 1, 2013 I am looong way to being an expert but isn't this a Newtonian telescope? I think I read somewhere that the Newtonian telescopes do not have sufficient "focus travel" to be used without modifications for astrophotography. I think using eyepiece projection technique might fix your problem. If not maybe making physical changing to the telescope ( which might be tricky...). Link to comment Share on other sites More sharing options...
Steep Posted May 1, 2013 Share Posted May 1, 2013 razvans is right I think. I can't get my dslr to focus on my dob either when it's attached directly. I put a barlow on it and that works well but does restrict the views a bit. The only other reasonable option is to change your focuser for a slimline? one that lets you get the dslr closer to the tube. Link to comment Share on other sites More sharing options...
laser_jock99 Posted May 1, 2013 Share Posted May 1, 2013 The other option is to move the main mirror up the tube slightly. There are a couple of ways of doing this but I killed three birds with one stone and installed 6x longer, stronger springs at the same time.http://stargazerslounge.com/topic/184528-six-spring-mirror-mod/ Link to comment Share on other sites More sharing options...
Scott Posted May 1, 2013 Share Posted May 1, 2013 I've got a canon 1100d an have no probs focusing with my 200p (unmodified). can't help you out with the IR camera though. Nice moonshot by the way. Link to comment Share on other sites More sharing options...
kev533 Posted May 1, 2013 Author Share Posted May 1, 2013 Cheers guys, I have no problem either with the canon, its the nikon that won't focus. I don't really want to move the mirror as then presumably my problem will be the other way round.Many thanksKev Link to comment Share on other sites More sharing options...
leelee970 Posted May 2, 2013 Share Posted May 2, 2013 You could move the mirror up the tube or change the focuser to obtain focus with the Nikon and then use a small extension tube to obtain focus with your other kit. Link to comment Share on other sites More sharing options...
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