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Old 08-08-2009, 06:40 AM
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Paramount Paramount is offline
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Default M27 - Lrgb

Hi All
I managed to get out last night despite a bad boutof laryngitis (must have kept the neighbours awake with my coughing - still it gets my own back for the security lights going on and off all the time). I thought I would have a go at one of the earliest targets that I tried when I first started imaging with my Meade system 3 years ago so I aimed at M27. I wasn't sure about exposure times as this is a fairly bright planetary nebula and with the f5 of the BRC-250 I decided on 2 minute subframes of which I took 24 for luminance using a CLS filter and 15 each for RGB. No calibration was used. My earlier (and rather pathetic attempt) can be seen at the beginning of the nebulae page in the image gallery on my website http://www.imagingtheheavens.co.uk for comparsison
Thanks for looking
Best wishes
Gordon

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TMB 115
Takahashi BRC-250
FLI PDF focuser and filter wheel
Paramount ME on Tri-pier 2
Starlight Xpress SXVF M7C, M8C, H36 + lodestar
Various other bits and bobs
Please visit my website for more information and images http://www.imagingtheheavens.co.uk
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  #2  
Old 08-08-2009, 08:34 AM
budguinn budguinn is online now
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Default Re: M27 - Lrgb

nice Gordon, this is always a favorite target.......
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bud guinn
http://www.budguinn.com
SXV-M25C, SXV-H9C, QSI 532WS
NP101, E180ed, R200SS, FRC300
Paramount ME, CGE mount
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Old 08-09-2009, 05:58 PM
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Paramount Paramount is offline
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Default Re: M27 - Lrgb

Hi
Following some suggestions I have reprocessed this imagewith particular respect to sharpening and the background noise, I have reduced both although there is still a bit of noise evident it is not as bad and to get rid of it completely would have meant an artfificially smooth image, more subframes will be needed to improve it further, thanks for looking
Best wishes
Gordon

__________________
TMB 115
Takahashi BRC-250
FLI PDF focuser and filter wheel
Paramount ME on Tri-pier 2
Starlight Xpress SXVF M7C, M8C, H36 + lodestar
Various other bits and bobs
Please visit my website for more information and images http://www.imagingtheheavens.co.uk
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  #4  
Old 08-09-2009, 09:56 PM
budguinn budguinn is online now
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Default Re: M27 - Lrgb

this does look better....
Have you seen this tutorial?......I use it occasionally:

Background Repair With PhotoShop

I usually will use it if I don't have enough time on an object for a clean background
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warmest regards,

bud guinn
http://www.budguinn.com
SXV-M25C, SXV-H9C, QSI 532WS
NP101, E180ed, R200SS, FRC300
Paramount ME, CGE mount
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