M45 Plaeides

Started by rferrieri, 01/06/2016 01:58AM

Posted 01/06/2016 01:58AM | Edited 01/06/2016 02:00PM Opening Post

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Join Date: Oct 2001

Location: Jupiter FL, US

Posts: 24

Just shot this from my backyard. Stacked three 8 min exposures using DSS with onboard camera dark frame correction on each exposure. Used my Olympus E-30 equipped with a Hexanon 200mm f4 lens (plus red intensifier filter) at iso 400. The setup was mounted on an iOptron Sky Tracker. I spent some time getting the polar alignment spot on, but frankly was shocked that I was able to do 8 minute exposures at this focal length.

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Posted 01/06/2016 07:20PM #1

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Join Date: Oct 2001

Location: Jupiter FL, US

Posts: 24

One of the things I noticed with longer exposures is star bloating. I discovered Peter Shah's Star Reduction Action which I uploaded into Photoelements 12. This image was processed through his star reduction process twice then tweaked highlights in Curves.

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Posted 01/22/2016 02:10AM #2

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Join Date: Jan 2015

Location: Rutland MA, US

Posts: 183

I like it :-)

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~ Charlie Stevenson

8" f/5.7 String Telescope - 1st Scope Build; 2nd Place Stellafane 2016 Optical Award for Newtonians 12.5" and Smaller
10" f/4.5 Newtonian (June 2015) mirror refigured by Optic Wave Labs P-V WaveFront 1/14.24, Strehl Ratio 0.993 (Aug '15)
Criterion RV-6 seems to be circa 1973 (June 2015) [For Sale]
Celestron C8-A XLT (January 2015) [For Sale]
Celestron PowerSeeker 70AZ (Christmas 2014)
Aldrich Astronomical Society member since 2015
http://astro.charleskelleystevenson.com/

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