Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

SW 0.85 focal reducer compatibility

  • Please log in to reply
1 reply to this topic

#1 planedriver

planedriver

    Lift Off

  • -----
  • topic starter
  • Posts: 1
  • Joined: 16 Aug 2020

Posted 18 October 2020 - 05:57 AM

Hi all,

Using the dedicated SW focal reducer on the 80/600 ED I wonder how inter compatible these reducers are?

As I also have a 100/900ED do I really have to buy the dedicated one for each SW scope - are they really different each?

Thanks,

#2 randcpoll

randcpoll

    Mariner 2

  • *****
  • Posts: 276
  • Joined: 20 Jul 2013
  • Loc: New York

Posted 18 October 2020 - 07:16 AM

There is some flexibility. Normally you can use the reducer for the longer scope on the shorter one by adding a couple of millimeters to the spacing between the reducer and the camera. However, I'm not sure about the shorter being used for the longer. Just try it and see. 




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics