#1  
Old 06-07-2013, 09:44 PM
l3gendluk3 (Luke)
Contact light!

l3gendluk3 is offline
 
Join Date: Jul 2013
Location: Perth
Posts: 52
DSI not focusing

I recently got a DSI imager from my teacher to play around with at home but when I try to focus it on Saturn, I have to turn my focus knob all the way in and it still doesn't focus right. I asked my friend and he said that I needed a barlow lens or a focal reducer but didn't know which one. Can anyone help?

-Luke
Reply With Quote
  #2  
Old 06-07-2013, 11:06 PM
White Rabbit's Avatar
White Rabbit
Space Cadet

White Rabbit is offline
 
Join Date: Feb 2007
Location: Sydney
Posts: 1,409
You need an extension tube to give you the correct back focus. If you have access to a Barlow, unscrew the the lens part of it and you insert it between the camera and telescope. Living the lens in how ever may prove beneficial when imaging planets.

Cheers
Sandy
Reply With Quote
  #3  
Old 07-07-2013, 12:31 PM
Lee's Avatar
Lee
Colour is over-rated

Lee is offline
 
Join Date: Sep 2005
Location: Newcastle, Australia
Posts: 2,414
What scope are you trying to use the DSI in? How are you attaching the DSI ?

Different scopes will have different reasons for not getting focus....
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 11:39 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Advertisement
Celestron Australia
Advertisement
Bintel
Advertisement
OzScopes Authorised Dealer
Advertisement
Lunatico Astronomical
Advertisement
Meade Australia
Advertisement
NexDome Observatories
Advertisement
SkyWatcher Australia
Advertisement
Astronomy and Electronics Centre
Advertisement