Thread: New COMA Killer
View Single Post
  #8  
Old 13-08-2019, 09:58 PM
alocky's Avatar
alocky (Andrew lockwood)
PI popular people's front

alocky is offline
 
Join Date: Aug 2010
Location: perth australia
Posts: 1,287
Quote:
Originally Posted by gregbradley View Post
The main issue for it is the fact it weighs something like 1.2kgs and is really large. So it must be getting to the size that will make balancing the camera on a tracker more difficult and its weight possibly could even start causing tracking issues. Perhaps not, as a lot of trackers are quite tough.

Greg.
For a 40mm lens it is a very very large chunk of glass. My Polarie handles it just fine, though and the results wide open are pretty tight - better than my Leitz 50mm Summicron in the corners.

Here's an hours worth on Crux with the Polarie, Sigma 40 and D810a
https://www.astrobin.com/420737/
Reply With Quote