ASA Correctors & Accessories

27 topics in this forum

1. ASA 1.8x barlow for newton + original adapter

   By pepe30, November 15, 2022
   • 1 reply
   • 90 views
   • 
   • pepe30
   • March 8

2. ASA 3" Wynne corrector - coating failed

   By Jurij Stare, May 2, 2022
   • 1 reply
   • 274 views
   • 
   • Jurij Stare
   • May 6, 2022

3. Reduction factor from the SCT corrector much less than 0.77 - nearer 0.88.

   By William Shaw, January 31, 2022
   • 0 replies
   • 189 views
   • 
   • William Shaw
   • January 31, 2022

4. Search of 4" ASA field corrector for newtonian telescope

   By Michastro, January 29, 2021
   • 0 replies
   • 1.7k views
   • 
   • Michastro
   • January 29, 2021

5. Asa 3" 0.73x corrector

   By giocasi, November 26, 2020
   • 2 replies
   • 659 views
   • 
   • MarkS
   • December 13, 2020

6. vignetting of ASA 3" corrector

   By choi jong min, April 14, 2020
   • 4 replies
   • 717 views
   • 
   • Waldemar
   • April 20, 2020

7. Wynne corrector 3KORRW or 3KORRH8

   By -Amenophis-, December 20, 2019
   • 4 replies
   • 652 views
   • 
   • -Amenophis-
   • December 24, 2019

8. Mirror cell handles

   By -Amenophis-, March 11, 2019
   • 2 replies
   • 602 views
   • 
   • -Amenophis-
   • March 12, 2019

9. Adaptive Optics

   By Waldemar, May 19, 2017
   • 4 replies
   • 1.8k views
   • 
   • Waldemar
   • June 28, 2017

10. BACKFOCUS for ASA 2" Reducer Corrector 0.73x

    By -Amenophis-, March 14, 2016
    • 11 replies
    • 3.7k views
    • 
    • MarkS
    • June 25, 2017

11. QSI 5/6xx wsg on ASA N series Newton

    By chlopak, May 21, 2013   

    • QSI
    • 9 replies
    • 3.2k views
    • 
    • MarkS
    • September 28, 2016

12. 4 inch Cassegrain Field Flattener Back Focus

    By nakbrooks, September 7, 2016
    • 3 replies
    • 1k views
    • 
    • nakbrooks
    • September 7, 2016

13. Cleaning corrector lens

    By w0mbat, September 7, 2015
    • 4 replies
    • 1.2k views
    • 
    • MarkS
    • September 8, 2015

14. 4" Wynne corrector distance from primary

    By lukepower, March 28, 2015
    • 4 replies
    • 1.6k views
    • 
    • lukepower
    • August 10, 2015

15. asa 10 inchs rings bolt patern

    By charleslillo, July 23, 2015
    • 4 replies
    • 1.2k views
    • 
    • charleslillo
    • July 24, 2015

16. Corrector coma correction problem?

    By ChristerS, May 5, 2015   

    • coma
    • corrector
    • 2 replies
    • 2k views
    • 
    • ChristerS
    • May 6, 2015

17. Where do ASA field flatteners go in the image train

    By nakbrooks, October 19, 2014
    • 1 reply
    • 1.2k views
    • 
    • nakbrooks
    • October 19, 2014

18. ASA 2" Reducer Corrector 0.73x : Serial number graved ?

    By MartinN, April 28, 2014
    • 0 replies
    • 1.7k views
    • 
    • MartinN
    • April 28, 2014

19. Strange rings in Images

    By lukepower, February 24, 2014
    • 7 replies
    • 1.5k views
    • 
    • lukepower
    • February 25, 2014

20. ASA main mirror cover

    By lukepower, December 30, 2013   

    • mirror cover
    • 2 replies
    • 2.1k views
    • 
    • lukepower
    • January 6, 2014

21. ASA 2" coma corrector quattro x1.175

    By pimeson, December 24, 2013
    • 3 replies
    • 2.4k views
    • 
    • tommy_h
    • December 24, 2013

22. Thread size for ASA tube ring holes

    By dachurchill, October 19, 2013
    • 4 replies
    • 1.8k views
    • 
    • dachurchill
    • October 23, 2013

23. Preventing cable wrap with ASA rotator

    By nakbrooks, October 10, 2013
    • 0 replies
    • 1.2k views
    • 
    • nakbrooks
    • October 10, 2013

24. ROT3 Rotator under ASCOM

    By nakbrooks, July 25, 2013
    • 0 replies
    • 1.5k views
    • 
    • nakbrooks
    • July 25, 2013

25. Different Back Focus Numbers (ASA 10"N Wynn 3")

    By YahooGroup, May 19, 2013
    • 2 replies
    • 2.2k views
    • 
    • GerhardB
    • July 15, 2013