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PostPosted: Wed Oct 17, 2007 11:11 am 
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Hi folks,

Christian Buil has done some preliminary tests of the long exposure noise filtering capabilities of the D3 and D300. His tests were done in an astrophotography context but the results may be of wider interest if you plan long low-light exposures.

The feature is written in both French and English (allternative paragraphs) and can be read here.

Bob.

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Olympus OM-D E-M1 + M.Zuiko Digital ED 12-40mm f/2.8, Lumix 7-14mm f/4, Leica DG Summilux 15mm f/1.7 ASPH, M.Zuiko Digital 45mm 1:1.8, M.Zuiko Digital ED 75mm 1:1.8.
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Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.


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PostPosted: Sat Oct 20, 2007 4:43 am 
A opinion of a Canon Mark III user...

http://www.avforums.com/forums/showthread.php?t=638935


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PostPosted: Sat Oct 20, 2007 9:28 am 
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Ah, that may be the reason that I never got any got night-sky shots with stars, even under the beautiful sky of New Zealand :cry:

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PostPosted: Sat Oct 20, 2007 6:16 pm 
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Found this piece at ByThom: "most current Nikons apply a median filter to data coming off the sensor with long exposures (the D3 and D300 are exceptions). This makes these cameras less useful for some types of work, such as astronomical photography"

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PostPosted: Sat Oct 20, 2007 7:22 pm 
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tombomba2 wrote:
Found this piece at ByThom: "most current Nikons apply a median filter to data coming off the sensor with long exposures (the D3 and D300 are exceptions). This makes these cameras less useful for some types of work, such as astronomical photography"

Hi Thomas,

Have you been away? Welcome back if you have. 8) Thanks for the link: it looks like I was very lucky to go with Canon when I made my first foray into the DSLR world last year. Phew!

Bob.

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Olympus OM-D E-M1 + M.Zuiko Digital ED 12-40mm f/2.8, Lumix 7-14mm f/4, Leica DG Summilux 15mm f/1.7 ASPH, M.Zuiko Digital 45mm 1:1.8, M.Zuiko Digital ED 75mm 1:1.8.
Leica D Vario-Elmar 14mm-150mm f/3.5 - f/5.6 ASPH.
OM-D E-M5, H-PS14042E, Gitzo GT1541T, Arca-Swiss Z1 DP ball-head.
Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.


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 Post subject: Update
PostPosted: Sun Oct 21, 2007 1:46 pm 
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tombomba2 wrote:
Found this piece at ByThom: "most current Nikons apply a median filter to data coming off the sensor with long exposures (the D3 and D300 are exceptions). This makes these cameras less useful for some types of work, such as astronomical photography"

Update: I have just discovered that all is not lost - see my post here for a way around this problem.

Bob.

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Olympus OM-D E-M1 + M.Zuiko Digital ED 12-40mm f/2.8, Lumix 7-14mm f/4, Leica DG Summilux 15mm f/1.7 ASPH, M.Zuiko Digital 45mm 1:1.8, M.Zuiko Digital ED 75mm 1:1.8.
Leica D Vario-Elmar 14mm-150mm f/3.5 - f/5.6 ASPH.
OM-D E-M5, H-PS14042E, Gitzo GT1541T, Arca-Swiss Z1 DP ball-head.
Astrophotography: TEC 140 'scope, FLI ML16803 camera, ASA DDM60 Pro mount.


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