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Old 08-12-2007, 09:40 AM
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avandonk
avandonk

avandonk is offline
 
Join Date: Aug 2005
Location: Melbourne
Posts: 4,786
LMC at 85mm and HDR

Another clear night!

Large Image 2.6MB
http://members.optusnet.com.au/~trlee8/LMC_85mm.jpg


Details
Canon 5DH. Canon 85mm F1.8, Hutech LPS filter, all at ISO500.

At f/2.8, 10X(2min, 4min, 8min )
At f/4 , 10x( 30s, 1min, 2min)

Converted from RAW to TIFF and corrected for flats with ImagesPlus. Stacked and aligned wiith Registar. Used EasyHDR to produce a LDR image from these five images. The potential dynamic range displayed is better than seventeen bits.

I am going to have to shim the lens as the stepper belt is pulling it slightly to one side. You can see this as the stars on the left are a bit out of focus compared to stars on the right.

Bert
Attached Thumbnails
Click for full-size image (LMC_85mm_6.jpg)
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Click for full-size image (LMC_85mm_cr_5.jpg)
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