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Astro Imaging Tips & Techniques

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Best practise & tips for imaging with your Altair Camera.

What is Debayering, and why should I do it before stacking my images?

Note: Debaying is required for any output from any colour camera sensor when used in RAW mode. This article applies to deepsky images (.FITS format) and for solar system/planetary videos (.SER format). Firstly, what is Debayering? Colour CMOS camera sensors usually have four colour channels (two greens, one red and one blue). The sensor has a sensitive layer of pixels which [...]

By | 2017-10-27T12:02:04+00:00 October 25th, 2017|Comments Off on What is Debayering, and why should I do it before stacking my images?

Focusing on stars in AltairCapture, manually.

This is about manual focusing using those opposable thumbs and is aimed at the beginner. To focus manually, you need a reasonably fast frame rate so you can see the effect of turning the focuser knob on the screen. The problem is that stars can become quite faint at less than a second exposure, making [...]

By | 2017-07-11T18:18:37+00:00 January 9th, 2017|Comments Off on Focusing on stars in AltairCapture, manually.

Altair Planet Killer 685nm IR Pass Filter – test with GPCAM camera

Ever looked through a telescope with a high power eyepiece? You'll notice the air shimmer, kind of like a "heat haze". What's happening? Well, your telescope is magnifying air currents, as well as the distant object you're trying to view. Heat causes convection currents in the air, changing the air density and that causes distortion by bending [...]

By | 2017-07-11T18:18:37+00:00 December 10th, 2015|0 Comments

Using Altair GPCAM as Digital Finder Scope

You can use your Altair GPCAM as a digital finder scope with the latest version of AltairCapture. Here's how. Firstly mount your GPCAM with suitable C-Mount or CS-Mount lens, pointing in the same general direction as your telescope. Enable the reticule feature. Click on the reticule buttons at the top of the screen and choose the one [...]

By | 2018-01-09T11:32:28+00:00 November 22nd, 2015|0 Comments