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| | |-+  A 2017 New Years M42 experiment
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: A 2017 New Years M42 experiment  ( 146 )
Ron
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« : January 17, 2017, 10:57:13 AM »

One of my favorite objects, the Orion Nebula.  I thought I would see how my scope and camera would do with a high ISO and 30 second exposure.  I normally use 1600 ISO and 20 second exposure to eliminate some star trailing.

This image is from an Alt/Az scope, Canon T4i camera prime focus, single shot, in camera dark subtracted.



A little noisy, but I didn't think it was too bad for a High ISO and 30 second exposure.  Stars are a little egg shaped but I think multiple exposures stacked in DeepSkyStacker would take car of the egg shaped stars :|

Ron


8"LX200GPS,Alt/Az,favorite ep 18mm wa
Canon T4i, 70-300mm telephoto, canon 50mm f/1.8
Hobbies:Astronomy, camping, sailing, fishing and now RC planes
drclay
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« #1 : January 24, 2017, 03:04:07 PM »

Beautiful Ron....looks like the telescope is working once again!
Thanks for posting.

Doc

Dr. Clay
drclay@tcworks.net
ASO Petit Jean Mountain /MPC H41
ASO Petit Jean Mountain South /MPC H45
ASO West Conway /MPC H43
.......serving astronomy since 1971
Ron
1000+ Club
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« #2 : January 25, 2017, 10:26:15 AM »

Beautiful Ron....looks like the telescope is working once again!
Thanks for posting.

Doc

Scope is working good so far, hope to give it a good work out at my Club's OBS starting tonight for the next 4 nights.  And of course that all depends on the weather. :)

Thanks,

Ron

8"LX200GPS,Alt/Az,favorite ep 18mm wa
Canon T4i, 70-300mm telephoto, canon 50mm f/1.8
Hobbies:Astronomy, camping, sailing, fishing and now RC planes
SiriusDoggy
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« #3 : March 11, 2017, 11:13:18 PM »

I'm impressed you didn't get any field rotation in a 30second exposure.

Meade 12" LX200gps
Celestron 5.5" Comet Catcher w/iOptron ZEQ25 mount
Lunt 80mm Ha Solar Scope
Canon 5D Mark II & ZWO ASI 1600MM cooled cameras.
Ron
1000+ Club
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: 3119



« #4 : March 12, 2017, 05:15:32 PM »

Greg,

I do get rotation depending on where I am pointed at the sky.  I'm not sure which direction or altitude but in certain areas I do get rotation, some areas more that others.

Ron

8"LX200GPS,Alt/Az,favorite ep 18mm wa
Canon T4i, 70-300mm telephoto, canon 50mm f/1.8
Hobbies:Astronomy, camping, sailing, fishing and now RC planes
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