Date & Time: 2/14/2013 0h 30m UT
Telescope: Meade Lightbridge 16 @ f/9 (OPT 2” 2x Barlow)
Camera: Canon Rebel T2i, 1.25” adapter, manual remote switch
Exposure: 5x1/250sec, ISO 800 saved as JPEG
Mirror Lock-up: On, 5 second pause to allow vibrations to settle
Software: Panorama Maker 3, Photoshop 7
This is my second attempt at imaging the moon with my Lightbridge 16 and my first attempt at a full-disk mosaic. Unfortunately, I goofed and didn’t realize until it was too late that I had my camera set to save the images as low resolution JPEGs instead of RAW images. Fortunately, at this images scale it didn’t hurt too much, but I definitely need to try this again. The overall procedure was fairly simple. I set the focus visually looking through the viewfinder at a bright star (Rigel) and a homemade Bahtinov mask. I then moved over to the moon and took a set of test images of the brightest region to set the exposure time and gain so that the histogram was about 80% filled. I then took a series of 5 images with enough overlap to assemble the mosaic. These were stitched together in Panorama Maker 3, rotated, cropped, and final processing in PS7.
Lunar Mosaic-Lightbridge 16 Canon T2i
1 reply to this topic
Posted 16 February 2013 - 09:12 PM
Thanks, John! That is really nice. If you redo this with raw images as you talked about, I would be interested in seeing and comparing it with this one, just to see what the difference is.
Bill Steen, Sky Hunters' Haven Observatory, Broken Arrow, Oklahoma
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