Back to forums

Explore Scientific 127 ED APO FDC with Keller 1.5x barlow and/or Duering 2.7x barlow

Equipment Barlow
2 replies•79 views
Georg N. Nyman avatar
Georg N. Nyman avatar
Hello everyone,

I got the two above mentioned barlows from my Newton - what do you suggest to me - can I use them with success on my Explore Scientific 127 APO as well  - mechanically they would fit nicerly, but how about the optical performance for photography? Have you done this or have you got any experience with those in such a combo?

Thanks and regards

Georg
Georg N. Nyman avatar
Georg N. Nyman avatar
I had a very short option to try them out - well, the 1.5x Barlow can be adapter easily and focusses fine - tried it out in one clear night. Plate solving did not work, no idea why. Bu the stars were nicely round and focussing went fine. Tests were interrupted by clouds. More to follow once the skies are clear enough throughout the hole short night. 
The 2,7x … I need to dig deeper into the optical distances to get stars in focus - did not work yet….I shall try again.