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Old 10-04-2006, 10:07 PM
tornado33
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tornado33 is offline
 
Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 4,116
Bert's 300mm lens test

Howdy all
Many thanks to Bert (avandonk) for kindly loaning me his Canon 300mm F2.8 flourite lens. It arrived totay, well packed, and I lost no time in fitting it to my mount as shown
http://www.users.on.net/~josiah/mod350d/300mmlens.jpg

My setup looks agricultural, but gee the lens works fantastically well.

2 inch nebula filters fit nicely in the back of the lens too! I tried out my 2 inch UHCS filter when taking these pics.

Now remember these pics were taken with the moon at about 93% full. Whoever herad of doing deep sky work under such conditions

Full sized versions here
http://scottalder.fotopic.net/c918683.html

Darks, flats and offsets done in IRIS, then finished off in Photoshop CS. Because of the wide field I used Gradient xterminator to smooth things over too.
Modified 350D camera used.
Im astounded at seeing the Rosette under near full moonlight. Dratted plane went across one of the pics, I should reprocess it without it, but was in a hurry to show off what Bart's piece of glass can do.
Scott
Attached Thumbnails
Click for full-size image (cone neb berts lens_filtered2small.jpg)
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Click for full-size image (etacarina berts lens2x100seciso200 uhcs2small.jpg)
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Click for full-size image (m42berts lens 7x200seciso200 uhcs_filteredsmall.jpg)
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Click for full-size image (rosette berts lens_filtered2small.jpg)
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