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Software deep dives, equipment reviews, tutorials, imaging sessions, and field notes — everything published on Mac Observatory.

101 articles
How to remove sensor tilt from your astrophotography camera while indoors
Tutorials

How to remove sensor tilt from your astrophotography camera while indoors

What is camera sensor tilt? This year marks my 6th year into the astrophotography hobby. Just about every camera I’ve owned has suffered from

Nov 28, 2021 8 min read
Askar FMA135 Review: The Tiny Refractor
Reviews

Askar FMA135 Review: The Tiny Refractor

The tiniest refractor setup To say the Askar FMA135 telescope is small would be an understatement. This APO triplet with an ED lens for color

Oct 15, 2021 5 min read
ZWO ASIAir Plus in-depth review
Reviews

ZWO ASIAir Plus in-depth review

What is the ASIAir Plus? The ASIAir Plusis the third generation ASIAir product from ZWO. It aims to replace your laptop or mini-pc at the

Sep 22, 2021 12 min read
Project Dumbbell: First light with the Rainbow Astro RST-135E and Celestron EdgeHD 8"
Reviews

Project Dumbbell: First light with the Rainbow Astro RST-135E and Celestron EdgeHD 8"

Astrophotography Portability limitations This image of the Dumbbell nebula is the culmination of effort into a project I started months ago. My goal was to

Jul 19, 2021 6 min read
Celestron EdgeHD 8"
Reviews

Celestron EdgeHD 8"

The Challenges of Long Focal Length Imaging with an EdgeHD 8" As an early adopter of harmonic drive mounts (Rainbow Astro RST-135), I’ve

Jul 19, 2021 6 min read
ZWO Camera Sale
News

ZWO Camera Sale

ZWO just started their summer sale with discounts on a lot of their popular cameras both for DSO imaging and planetary imaging. The sale includes

Jul 16, 2021 1 min read
Using Topaz Denoise AI for Astrophotography
Tutorials

Using Topaz Denoise AI for Astrophotography

The debate over AI (artificial intelligence) based tools in astrophotography There’s amassive debatehappeningright nowacross astrophotographyInternet forumsover whether or not AI based tools should be

Jun 30, 2021 5 min read
Some Amazon Prime Day deals worth looking at for your telescope
News

Some Amazon Prime Day deals worth looking at for your telescope

There’s a lot of less than stellar telescope items on sale at Amazon right now, but I’ll link to the ones I think

Jun 21, 2021 1 min read
What are astrophotography calibration frames, and why should I use them?
Tutorials

What are astrophotography calibration frames, and why should I use them?

Understanding Calibration Frames in Astrophotography: A Beginner's Guide When you get your start in astrophotography, the complexity can quickly become overwhelming. You’re

Apr 20, 2021 6 min read
Imaging the moon with a Celestron C5 Spotting Scope
Imaging

Imaging the moon with a Celestron C5 Spotting Scope

Taking Photos of the Moon This past week the moon was directly overhead. A cold front had just come through and cleared out the clouds

Mar 23, 2021 3 min read
QuickFits 1.0 released with Finder QuickLook for Fits files
News

QuickFits 1.0 released with Finder QuickLook for Fits files

QuickFits is a nice little application for the Mac that will debayer, auto stretch and preview your images right from the finder. This makes for

Feb 14, 2021 1 min read
Affinity Photo 1.9 adds astrophotography workflow support with stacking and calibration
News

Affinity Photo 1.9 adds astrophotography workflow support with stacking and calibration

A new astrophotography processing contenderAffinity Photohas entered the Mac…and PC race. Affinity introduced it’s suite of applications to compete against Adobe Photoshop, Indesign,

Feb 8, 2021 1 min read