Category Archives: Articles

How does a mirror really work?

I now realise that the initial case I considered – a page of text facing a mirror with the page parallel to the mirror – was a very special, and very restrictive case – so it wasn’t really the best … Continue reading →

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Mirrors really are Magic!!!

A while back I wrote how you get lateral inversion (“mirror writing”) in a mirror.  I worked out the solution independently of the (same) one given by Martin Gardner in his book “The Ambidextrous Universe”.

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Another type of image stacking

Not everything on this site is deep-sky stuff, occasionally I publish something interesting that’s associated with the photographic process.

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Using the AstroTrac TT320X and Canon 40D for deep-sky imaging

Well I managed to get out and try the kit even though earlier in the day I had a 4 and a half hour traffic nightmare coming back from the West Country – managed to hit the Bank Holiday traffic.  … Continue reading →

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The Astrotrac system and the Canon 40D

Coming back from a short break in Devon I was pleased to find the tripod and accessories for the Astrotrac had arrived.  It was also good to find that all the threads were compatible with fixing the Astrotrac to the … Continue reading →

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The Coathanger Cluster now features on the Bang! website

You can see the Coathanger Cluster image, along with several other Parker/Carboni deep-sky creations on the Bang! website.  Enjoy 🙂

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The Panosaurus arrives at the NFO

Well it has rained and/or been cloudy every day since the Coathanger image was taken.  You can almost believe there is a higher order deliberately out to frustrate the fun I can have with the new Hyperstar III.  Never mind, … Continue reading →

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The Canon 40D is about to go astro

I have very recently had my butt kicked into action by an amazing wide field image taken by Kerry.  Taken with a Canon 40D dSLR and without any tracking, this is a very nice piece of work by any standards.

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Star Vistas – the website is online!

You can now see the current status of the Star Vistas project on the new Star Vistas website.

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Starizona FeatherTouch autofocuser – mea culpa!

Dean of Starizona is very much on the ball.  He just informed me that the problem I had last night was probably due to me putting the cog on the FeatherTouch the wrong way round.  I just went out to … Continue reading →

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