Thank you Joe I tried with the skywatcher and the d750 and 80-200 combo, I did see the Orion once I stacked the images but the stars are all blurry. Could be few things that I am looking into - I tried this before I saw your latest post so I mounted the camera in the Dec bracket which was not the steadiest of setups. Also I chose a 15 sec exposure time at 200mm which I think goes against the 500 rule - but then again if the star tracker is tracking then relative motion should be zero and long exposure times regardless of focal length should be possible isn’t it ? Or is my thinking fundamentally flawed ?
Quote:
Originally Posted by OzEclipse
Hi Benji,
Bear in mind, they are taken from very dark rural skies. You won't be able to capture anything like that from the city. But get outta town and the skies the limit.
The Nikon 80-200 f2.8 is an excellent lens to start with. Mount it centrally on the polar axis of the Star Adventurer with a good solid ball and socket or tripod head (like the first photo), not hanging out on the dec bracket (like the second photo). The second photo is not a star adventurer, it's a much more solid polar housing to which I fitted the Star Adventurer Dec. That worked ok but the SA doesn't hold heavy camera+lens combos on the dec bracket. You'll get much better results centrally mounting /balancing the camera lens.
On your EQ mounting, you can just mount it on a dovetail plate and use it in place of the tube.
This one is 3D printed and a bit cheaper:-
https://www.bintel.com.au/product/3d...-dslr-cameras/
For a heavy lens combo like that, I'd go with a metal one:-
https://www.amazon.com.au/NEEWER-Dov...94&sr=8-2&th=1
Cheers
Joe |