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RALF_T
super member
Reged: 11/07/06
Posts: 127
Loc: Europe, Germany, Hamburg
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To my surprise, parts of the faint outer halo of M27 appear after a processing the image from last week with a highpass filter. Not very bright, but one can see it  :
M27 with halo
Tech Pan hypered 20 minutes, Royal 200 45 minutes, combined in PS. 12"/5.3 Newtonian. No filters used.
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Clear skies, Ralf
http://astrofilm.surfino.info/
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s58y
Post Laureate
Reged: 12/12/04
Posts: 4832
Loc: Eastern NY
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Nice -- this just shows how sensitive film really is. I don't think a DSLR could capture the faint halo in just two subexposures, especially witout a narrowband filter.
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Hutech 30D, SBIG ST-402 autoguider
SV80S, SV66 guidescope
AP900, G-11, Barndoor tracker
http://www.pbase.com/s58y
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Nebhunter
Pooh-Bah
Reged: 10/04/03
Posts: 1000
Loc: Frostbite Falls
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I share in you're joy.
Igor
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Handle me with Care - The Traveling Wilburys.
TEC 140 "Katyusha" - Tec field flattener. Equinox 80 -
Atlas EQ6 SynScan GPS ADM conversion. ST-4 guider.
PENTAX 67 - 400 EDif - 300 - 200 - 135 - 90 lenses.
OM-1 300 Tamron - Konica 35-100 Varifocal STI Pro Stiletto.
http://nightfly.zoomshare.com/
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RALF_T
super member
Reged: 11/07/06
Posts: 127
Loc: Europe, Germany, Hamburg
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Thank you for your comments! I try to go even a little bit deeper next time. The combination Royal and Tech Pan seem to be very good.
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Clear skies, Ralf
http://astrofilm.surfino.info/
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InkDark
scholastic sledgehammer
Reged: 10/29/07
Posts: 1461
Loc: Montreal, Canada
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I don't know why I don't stop by the imaging forums more often. I'm always delighted when I do. This is another good example. Nice work Ralf!
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Jimmy
"Rarely Have So Many Understood So Little About So Much" - Palle Yourgrau
"...since that time, I have not complained about the weather one single time. I’m glad there is weather." – Alan Bean, Apollo 12
What do you mean by “Saving the Earth”? The Earth is not in danger! Don’t worry about the planet it will be here long after we are extinct...
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RALF_T
super member
Reged: 11/07/06
Posts: 127
Loc: Europe, Germany, Hamburg
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Thank you Jimmy! I´ll try to make some more shots next time. So stay tuned, please... 
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Clear skies, Ralf
http://astrofilm.surfino.info/
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kmsu
Vendor / Maxvision
Reged: 02/25/08
Posts: 201
Loc: Maxvision Kunming Yunnan China
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Very professional!
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maxvision Club
kmsu@163.com
MEADE ED127 F7.5
maxvision ED102 F7
MEADE ED80 F6
maxvision Maksutov-Newtonian 152 F4.8
LXD75 mount
JE160 mount
JE120 mount
K3 mount
Canon 5D
Canon 350D
Nikon D70s
SBIG-STV
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Octavarium
member
Reged: 08/02/08
Posts: 62
Loc: East Haven, CT
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Excellent colors!
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Meade ETX-125PE
Series 4000 plossol eyepiece/filter set
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