Equipment

Our equipment posts cover the making, modification and use of observatories, telescopes and equipment. Select the posts for more information on the topics.

All Sky Cam Project

At a recent society night Keith described how he has built an all-sky camera, mainly from parts he had laying around, the camera is capable of producing a live view of the sky, time laps video summary of the night, can upload the images to a website for public viewing...

Building Dobsonian Mounts

Members Steve and Dave with some technical support from Keith have built another two Dobsonian telescopes for the society using donated Newtonian tubes, one is a 200mm F5 Skywatcher the other a 300mm F5.3 Orion Optics. The design is the same as the previous Dobsonian...

A DSLR Cooler

A DSLR, ideally one that has been modded to remove the filters is an accessible way to begin imaging, and I have successfully imaged using a ‘full spectrum mod’ Canon 600D for many years. Unfortunately these cameras are not cooled and the sensor...

Making Dew Heater Bands and Controller

Introduction: Dew heaters warm the optics of a telescope to prevent dew forming. Commercial control units and heater elements are available, however with a couple of hours, a soldering iron and a few tools, the control units and heaters can easily be constructed at...

Frankenscope

The Frankenscope I needed a portable telescope to take to places such as Kelling Heath. My main telescope is stuck in its observatory. It needs to allow me to do imaging as well as visual observations. The solution was to be build Frankenscope! What do you...

Large Telescopes

The Society and its members possess a notable range of astronomical equipment, much of it home made. A number of the these instruments have been constructed by John Wall who is internationally known as a telescope maker and is the inventor of the ‘Crayford...

Variable Barlow

Variable Barlow Adapter for a Webcam Changing the distance of an eyepiece or other sensor such as a webcam or DSLR changes the effective power (magnification) Andy Barber has made such a set-up for planetary imaging with a Phillips Toucam. The effective focal length...

DIY Finderscope

ATM Finderscope A finderscope is an essential accessory for your telescope, if you don’t have one, or your finderscope uses an objective less than 50mm in diameter you might consider making one, this is a satisfying accessory to make and doesn’t require any real skill...

A Battery-free Electric Focuser

A Battery Free Electric Focuser Building an electric control for your focuser can help you achieve focus easier & quicker. With an electric control focuser, there is no need to touch the telescope and so you don’t induce telescope wobble, which in turn,...

Time Delay Integration a.k.a Drift Scanning

What is Drift Scanning? If you try to take an image on an un-driven mount the stars will trail as the Earth rotates. Now imagine a star on a CCD, it will move from pixel to pixel producing a line rather than a point source. Now if we could move the image on the CCD at...