I made sure that Generic RGGB was selected from the drop-down menu.ĭeep Sky Stacker was now able to stack the FITS images and produce the correct colour balance. I have found that Generic RGGB is the one used by the Hypercam. It may come as no surprise that there is not a consistent Bayer Matrix built into all cameras. Without the Bayer Matrix in place above the imaging chip, a once-shot colour camera cannot produce colour images. As the human eye is more sensitive within the green part of the spectrum, Bayer Matrices are designed so ½ of the pixels are green filtered and ¼ each for Red and Blue. There a three different colour, Red, Green and Blue (RGB). This is a filter placed over the imaging chip, which filters the individual pixels, so only light passing through a particular filter reaches each pixel. I then adjusted the contents of the FITS Settings in this Window to match the diagram below: In the Window that opened, I clicked the FITS Tab. To stack the images correctly, a change needs to be made within DDS.įrom the left-hand menu, under Options, Settings, I selected RAW/FITS DDP Settings. Stacking the FITS images in Deep Sky Stacker (DSS). These FITS files will be stacked in Deep Sky Stacker. These subs will now be saved by the system as FITS files. I use the software using Trigger Mode to capture several images, one after another. Make sure that the image file format the software saves it is set to FITS. Once Altair Capture is opened, I selected Format as RGB. The simpler the better, just like me! So start back from the basics, taking baby steps before trying to run full steam ahead. As people who attend my astrophotography workshops will know I always advocate the KISS Method. I reverted back to using the Altair Capture software for the camera. I will probably re-visit and get this back up and running once I know I’ve cracked things properly. I was using SharpCap to capture my images, but that only seemed to confuse things. So below is what I did to get my camera up and running to produce colour images. My technique will obviously change as I develop and adapt the technique further. This may not be the best way of doing things, but it’s certainly a way I have found of finally getting the camera tamed. Where had that lovely colour gone I could see on the screen?Ī few nights of fiddling with capture and processing software, I finally started to get it to reveal some colour. Planetary imaging was perfect, but whatever I did, despite seeing colour on the screen, once processed my deep sky and comet images frustratingly always turned out monochrome once stacked. The camera was really sensitive, showing really faint stars. I’ve already got a great image processing workflow, that really works, so of course I know what I’m doing, what could possibly go wrong?Ĭlick here to read the blog describing my camera frustrations. But surely technology has moved on? I thought I would have a relatively easy ride with this newer camera. I found it very frustrating then, with a finicky way of processing the images. Many years ago, I had experimented with a loaned one-shot colour camera, but technology then was much different to that on offer to us amateurs today. A few months ago, I acquired a new camera, an Altair 183C Hypercam.Īs the C would suggest, it is a one-shot colour camera.
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