Author Archives: james

Comparison of JPEG and RAW White Light Solar Image Exposure Times

Posted on September 22, 2012 by james

I almost didn’t post this because I can’t quite believe the results are so poor for the second image, but here it is. I’ll try again tomorrow if the weather holds out. A stack of 60 images, processed from RAW … Continue reading →

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Comparison of JPEG and RAW White Light Solar Images

Posted on September 22, 2012 by james

These two images were taken from the same imaging run, 60 of 120 images stacked, 1/1000th @ ISO100. The RAW files were processed with PIPP, but I couldn’t get Registax to process the TIFF files produced by PIPP from the … Continue reading →

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Another wide field Andromeda Galaxy Attempt

Posted on September 22, 2012 by james

Fresh from my previous attempt at this I repeated the process, but this time in the capture application (APT) I pushed the live view zoom up to 10x and set the emulated ISO setting to 1600 with an exposure as … Continue reading →

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Widefield Andromeda Galaxy

Posted on September 22, 2012 by james

This is the first time I’ve ever attempted this sort of image. I left the telescopes in the house for this one, just taking out the Canon 450D and 200mm f/2.8L lens on my unguided EQ3-2 mount. I shot ten … Continue reading →

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Season of Mist and Mellow Fruitfulness

Posted on September 11, 2012 by james

It seems that after a no-show Summer, Autumn is forcing its way onto the scene already. This was the scene from one of my windows a couple of days ago, first thing in the morning (look at the lengths of … Continue reading →

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Solar Imaging with the 127 Mak

Posted on September 11, 2012 by james

Someone was asking about the set-up of a solar imaging system, so I took these photos of mine “in action”. There’s really nothing special here other than the motor focuser that I cobbled onto the back of the Mak. The … Continue reading →

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Stacking Canon RAW CR2 Files For Solar and Lunar Imaging

Posted on September 11, 2012 by james

I use Deep Sky Stacker for stacking images from my 450D for wide field shots of the night sky, but I’ve struggled getting anything to work for solar and lunar images. Some people I’ve discussed it with have found no … Continue reading →

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Solar PV Generation Update, September 2012

Posted on September 11, 2012 by james

We have reached the end of the first year with out solar PV installation and quite an odd one it has been, too. We had one of the mildest winters and generated far more in the first six months than … Continue reading →

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10″ Dob First Light

Posted on September 5, 2012 by james

Unbelievably it’s actually six weeks since I managed this, but I got around to writing it up in the end… Very unexpectedly, having finished my dob build the day before, around midnight there was a break in the cloud and … Continue reading →

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Filtering Light Pollution for Wide Field Star Images

Posted on September 5, 2012 by james

I’ve been taking some wide field images of the night sky with my Canon 450D recently and whilst we have very little light pollution here compared with most places in the UK, even a small amount bleeds into longer exposure … Continue reading →

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