Baader TZ-3 spacing asistance

Use this section to discuss "standard" Baader/Coronado/ Lunt SolarView/ Daystar, etc… filters, cameras and scopes. No mods, just questions/ answers and reviews.
Post Reply
torsinadoc
Almost There...
Almost There...
Posts: 843
Joined: Sat Apr 08, 2017 2:53 pm
Has thanked: 1640 times
Been thanked: 878 times

Baader TZ-3 spacing asistance

Post by torsinadoc »

I am confused on setting up my Baader telecentric to use with a Daystar Quantum. Per documentation the proper spacing is 250mm. Is that for the camera or the Daystar? Is that measured from the front (telescope end) or back of the TZ-3? Later in document mentions the original focus position is ~ 86 mm behind the front end of the telecentric lens assy. I interpret that as the Daystar should fit directly on the back of the tele centric (#1) and the camera should be positioned 250mm (#2)? Is this correct?

ImageIMG_9427 by Franklin Diamond, on Flickr


DavidP
Im an EXPERT!
Im an EXPERT!
Posts: 429
Joined: Sun Mar 08, 2020 9:25 pm
Location: Austin Texas
Has thanked: 146 times
Been thanked: 277 times

Re: Baader TZ-3 spacing asistance

Post by DavidP »

Franklin. I believe you have it correct. The camera sensor should be spaced 250mm behind the rear lens element of the TZ-3. The filter directly behind the TZ-3.
The scope’s original focus should be positioned 86mm behind the front lens element of the telecentric. This is not exact for all scopes. To come to focus, I had to bring the telecentric forward relative to the original focus.


DavidP
Im an EXPERT!
Im an EXPERT!
Posts: 429
Joined: Sun Mar 08, 2020 9:25 pm
Location: Austin Texas
Has thanked: 146 times
Been thanked: 277 times

Re: Baader TZ-3 spacing asistance

Post by DavidP »

The cardboard tube helps you find the relation of the telecentric to the original focus.


torsinadoc
Almost There...
Almost There...
Posts: 843
Joined: Sat Apr 08, 2017 2:53 pm
Has thanked: 1640 times
Been thanked: 878 times

Re: Baader TZ-3 spacing asistance

Post by torsinadoc »

Thanks


Ljungmann
Ohhhhhh My!
Ohhhhhh My!
Posts: 52
Joined: Wed Oct 21, 2020 12:26 pm
Has thanked: 2 times
Been thanked: 58 times

Re: Baader TZ-3 spacing asistance

Post by Ljungmann »

You got it right!! The filter just behind the TZ-3.
IMG_1600.JPG
IMG_1600.JPG (2.07 MiB) Viewed 735 times


Post Reply