M106

Posted: Apr 2nd, 2024

Show astrometry on hover

NGC

Technical Info

Telescope/Lens: Самодел на объективе TS115/7 APO Triplet

Camera: ToupTek IMX571

Mount: МТ-120

Guide Scope: Искатель 50

Guide Camera: T7m

Software: NINA, Pixlnsight, ФШ

Accessories: Флаттенер 1.0 Sky Rover 130 APO

Exposure:

45 x 180" ISO/Gain: 100 - УФ/ИК SVBONY 2

Orange zoneLight Pollution:

Ekaterinburg Rayon Ozera Gluhoe, Russia

Mar 30th, 2024

M106

Telescope/Lens: Самодел на объективе TS115/7 APO Triplet
Camera: ToupTek IMX571
Mount: МТ-120
Guide Scope: Искатель 50
Guide Camera:  T7m
Software: NINA, Pixlnsight, ФШ
Accessories: Флаттенер 1.0 Sky Rover 130 APO

Ekaterinburg Rayon Ozera Gluhoe, Russia
Light Pollution: Orange zone

Exposure:
45 x 180" ISO/Gain: 100 - УФ/ИК SVBONY 2

And again M106, but this time with a completely different telescope...  <br>I specifically decided to compare two tubes: the SW Quattro 8S and my homemade one with a TS115/7 APO Triplet objective. Why not compare? The focal lengths are almost the same—760mm and 800mm respectively—though the relative apertures are f/3.8 versus f/7.  <br>Well, for some reason, I like the triplet more, especially how it renders an even field across the entire frame, but there's a problem with strange rays on bright stars. Right now, it's disassembled again—I'm shortening the tube a bit (there's not enough inward travel for the 0.8 reducer) and adding reflective baffles; maybe that's the issue.  <br>Let me know in the comments which one you prefer and what you don't like. Thanks.

Original size: https://deepskyhosting.com/MlVHMiM
Author: Oleg Novoselov

2 h 15 m

1550

And again M106, but this time with a completely different telescope...
I specifically decided to compare two tubes: the SW Quattro 8S and my homemade one with a TS115/7 APO Triplet objective. Why not compare? The focal lengths are almost the same—760mm and 800mm respectively—though the relative apertures are f/3.8 versus f/7.
Well, for some reason, I like the triplet more, especially how it renders an even field across the entire frame, but there's a problem with strange rays on bright stars. Right now, it's disassembled again—I'm shortening the tube a bit (there's not enough inward travel for the 0.8 reducer) and adding reflective baffles; maybe that's the issue.
Let me know in the comments which one you prefer and what you don't like. Thanks.

Resolution: 6104x4032 px

Scale: 3899 KB