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

DSLR adapter size for Big Barlow

  • Please log in to reply
2 replies to this topic

#1 JoeGray

JoeGray

    Lift Off

  • -----
  • topic starter
  • Posts: 2
  • Joined: 06 Feb 2019

Posted 22 March 2019 - 11:08 PM

I’m looking to attach my Canon EOS to a 8inch dob, using a Big Barlow. I see that there are two types of single piece adapters available (one having a 2-inch bore to fit directly into the Big Barlow and the other being 1 inch bore and needing the bushing to fit). There is about a $70 cost difference between the two. Does the larger diameter have any benefit in this setup, or will the light path fit through the 1inch bore without obstruction?

#2 JoeGray

JoeGray

    Lift Off

  • -----
  • topic starter
  • Posts: 2
  • Joined: 06 Feb 2019

Posted 22 March 2019 - 11:11 PM

https://www.amazon.c...n/dp/B002F8Q2ZC
Vs.
https://www.amazon.c.../B00T4IRJPI#Ask

#3 Berny

Berny

    Mariner 2

  • *****
  • Posts: 269
  • Joined: 27 Jan 2015

Posted 22 March 2019 - 11:36 PM

Or, a little cheaper.

 

https://www.amazon.c...1_t3_B002F8Q2ZC




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