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VIGER
23rd of September 2009 (Wed), 21:06
Again with my one frame shots.
Canon 20D IR and Photoshop.

http://i106.photobucket.com/albums/m271/MLaframboise/Astro%20Q/Andromede.jpg



Cheers

Celestron
23rd of September 2009 (Wed), 23:16
The EXIF showing ISO 400 , f/2.0 , 46-secs with a 20d..... am i reading this correct ?? Is your lens the 100mm f/2 USM ? Mike was this piggyback mounted on a EQ mount (must be , no star trails) ? And you say it's a single 46-sec shot ? Unbelieveable :shock: . I've shot M31 lotsof times from the 18-55 kit lens up to 300mm using 1600 ISO and i have never got this kind of detail with one shot much less stacking a dozen images and still not get this much . Convience me this is a single 46-sec shot ....Please !

VIGER
24th of September 2009 (Thu), 05:31
Hi Ron

Yep the exif does not lie. The 20D IR or moded helps a lot. Yes it is the the 100mm F2 USM both mounted on a ( Sold by Hutech ) KEnko mount. Small mount but the quality of a Takahashi. Treatment is from the Lodriguss book. Start with the white balance. A layer that I have applied blurr and subtracted and curved (details) and de noised. Nothing special. It's all in is book including the choice of lenses that I happened to have. I have the 200mm also that I planned to use on my next trip.

http://i106.photobucket.com/albums/m271/MLaframboise/Astro%20Q/IMG_1864.jpg

Cheers

Michel

Celestron
24th of September 2009 (Thu), 07:55
Well pretty fantastic job ! BTW i have the book also on CD but haven't used it much since i haven't been able to do any imaging in a long time now :( . Hope to soon .

VIGER
24th of September 2009 (Thu), 08:48
Well pretty fantastic job !

Well thanks

I need to nove on to level III now and start using the Canon 200mm.
Should proove interesting.

Celestron
24th of September 2009 (Thu), 10:20
It would be quite interesting indeed how well a longer lens does on that mount . When i shot film i used a 300mm f/4 for long exposers piggyback mounted on my scope . You can see this in my equipment page on my website .

BIRDSMARTIN
24th of September 2009 (Thu), 10:22
Thank you for the shoot location via the PM. I have yet to try this myself, I have the Astrotrac system but cannot due to my infliction get it set up right,will try sometime soon I hope. Congratulations on a job well done. gives me hope.Do some more please.

Regards Douglas

VIGER
24th of September 2009 (Thu), 11:53
Hi Doug

will try sometime soon I hope you do my friend.

Do some more please.
( Nice complement thanks I will with people like you encouraging.)

I will try to do more. M13 should be nice to shoot and M43 in the morning if not to late.

Cheers

Michel

Nighthound
24th of September 2009 (Thu), 12:37
Great work Michel. Your shot clearly demonstrates that single exposure lens images can reveal more than most would expect. I did a similar test with my 100-400 piggy backed on my previously owned LX200/fork mount. As I recall(been years) this was about 90 seconds exposure under fairly dark and steady skies with an unmodified 20D(235mm @ ISO 1600).

http://i3.photobucket.com/albums/y67/Nighthd/Astrophotography/Piggy%20Back/m31pb2xx.jpg

I'm envious of your Mewlon, awesome instrument. I have a meger Sky 90 II and FS-60C but they're great little scopes

Keep up the great work.