Tutorials

A PHD2 autoguiding graph

Autoguiding: how much is good enough?

Tutorials
Autoguiding has revolutionised astrophotography. While your main imaging camera is off doing its job, a second camera keeps an eye on a star – any star – in the telescope’s…
Basic equipment for your first image with the WeMacro Rail

Your first image with the WeMacro Rail

Macrophotography is the art of getting images of tiny subjects onto a camera sensor. I’ve been asked about getting started in macrophotography, and specifically the least expensive way of getting your first image with the WeMacro Rail. This blog shows you how to go out and get your first image, so I’m going to get down to basics.

Protect your observatory! Setting up safety equipment

With a dome, you can simply open it up and begin imaging. But if you want to sleep as well, you need something keeping an eye on the weather so the dome will close if it’s about to rain. In this blog I’ve described a couple of gadgets that can do all that for you. I also talk about a couple of options to put the system together.

Diffraction spikes – what they are and how to get them right

Modifications, Tutorials

Have you noticed that some astrophotographs have diffraction spikes coming from bright stars? They’re caused by the secondary mirror holder in reflector telescopes. Spiders, as they’re known, can give you nice spikes, but if they’re crooked or uneven, the spikes can look horrible. Here, I’ll show you how to get perfect spikes.

Asteroids comets and minor planets – find them using orbital data

Tutorials

Asteroids and other objects such as comets and even space junk are hard to find when they pass close to the Earth because their motion relative to us is so fast. Normal planetarium programs can’t track them. This blog shows you how to find and download up-to-date official data so you can locate them with your go-to telescope.

Choosing the right shutter release cable for your camera

With a shutter release cable you can fire your camera remotely without touching it. They’re very useful in photography, especially macrophotography and astrophotography. They are available for a huge range of cameras. Choosing the correct shutter release cable for your camera can be difficult. Here is a list of available cables.

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Autoguiding: how much is good enough?

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