SkyViking
28-06-2010, 11:02 PM
Hi all, here is my take on the partial lunar eclipse. I'm a little behind the rest of you because I first had to find time to merge all 12 panels of my ToUCam's 640x480 resolution... :D
However I'm quite happy with the result: http://www.pbase.com/rolfolsen/image/126032191/large
Image is taken @11:25pm NZST 26/06/2010 with 10" Newtonian and a 0.6x focal reducer. It is a mosaic of 12 panels from the ToUCam's 640x480 resolution. An IR block filter was added to ensure correct colour representation because I particularly wanted the reddening of the shadow to be visible.
Exposures of both 1/1250s, 1/1500s and 1/1000s were blended together to capture the full dynamic range of the partially eclipsed Moon. Each panel is a stack of 190 frames, which provided for low noise levels so the image could be processed with curves and sharpening in Photoshop.
I noticed something unusual after I had uploaded the image to PBase. My colour profiling seems to have gone out the window:eyepop:
Inside Photoshop the image looks fine, the transition from light to shadow is smooth, but the 'original' size image (http://www.pbase.com/rolfolsen/image/126032191/original) which I saved from Photoshop, looks much more contrasty and also a little more saturated. The transition to the shadow is very abrupt and ugly when I view it in Windows Picture Viewer and in Firefox. Interestingly enough, all the other sizes that PBase automatically generates (large, medium and small) are fine, in the browser they look exactly like my original in Photoshop?
Is anyone able to see this problem when looking at these images, and perhaps advise how I get the same colour profile in both Photoshop and Windows/browser?
Regards,
Rolf
However I'm quite happy with the result: http://www.pbase.com/rolfolsen/image/126032191/large
Image is taken @11:25pm NZST 26/06/2010 with 10" Newtonian and a 0.6x focal reducer. It is a mosaic of 12 panels from the ToUCam's 640x480 resolution. An IR block filter was added to ensure correct colour representation because I particularly wanted the reddening of the shadow to be visible.
Exposures of both 1/1250s, 1/1500s and 1/1000s were blended together to capture the full dynamic range of the partially eclipsed Moon. Each panel is a stack of 190 frames, which provided for low noise levels so the image could be processed with curves and sharpening in Photoshop.
I noticed something unusual after I had uploaded the image to PBase. My colour profiling seems to have gone out the window:eyepop:
Inside Photoshop the image looks fine, the transition from light to shadow is smooth, but the 'original' size image (http://www.pbase.com/rolfolsen/image/126032191/original) which I saved from Photoshop, looks much more contrasty and also a little more saturated. The transition to the shadow is very abrupt and ugly when I view it in Windows Picture Viewer and in Firefox. Interestingly enough, all the other sizes that PBase automatically generates (large, medium and small) are fine, in the browser they look exactly like my original in Photoshop?
Is anyone able to see this problem when looking at these images, and perhaps advise how I get the same colour profile in both Photoshop and Windows/browser?
Regards,
Rolf