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
Filter: None
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.
-John

Lunar Mosaic-Lightbridge 16 Canon T2i
Started by
JohnGraham
, Feb 16 2013 02:44 PM
1 reply to this topic
#1
Posted 16 February 2013 - 02:44 PM
#2
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
Bill Steen
Bill Steen,
Sky Hunters' Haven Observatory,
Broken Arrow, Oklahoma
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