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 Post subject: Photographing planets?
PostPosted: Thu Aug 05, 2010 11:58 am 
The seeing finally cleared late last Sat. night, and I was able to get some pics of Jupiter with my H5.
Here they are:
Image
Full zoom
ISO-80
F/3.7
1/100 sec. exposure
WB - Tungsten

Extreme crop:
Image
(Seems like I actually got one of the bands :) )

The problem was, I couldn't get the moons without altering my settings:
Image
Full zoom
ISO-80
F/3.7
0.77 sec. exposure
WB - Tungsten

Extreme crop:
Image

I got the Galilean moons (nicely lined up, I must add :) ), but I lost all detail on Jupiter itself.

Is there any trick to being able to get both the planetary detail plus its satellites in the same shot? Or do I need to do some combining with Photoshop, Iris, etc., to get what I'm looking for?

Floyd.


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 Post subject:
PostPosted: Thu Aug 05, 2010 4:06 pm 
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Joined: Sat May 29, 2010 11:27 pm
Posts: 773
Location: Toronto, Canada
It's because Jupiter is much brighter than its moons. I would say your best bet is to combine 2 exposures, one for Jupiter and one for the moons into a single shot.

In your Jupiter crop, the closest moon is faintly visible just off to its right if you look closely. It might be possible that you can faintly see the others as well in that crop...

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 Post subject:
PostPosted: Thu Aug 05, 2010 5:46 pm 
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Joined: Sun Feb 15, 2009 12:59 pm
Posts: 6009
Location: The Netherlands
Just take 2 shots and combine them both. You have a black background, so it's pretty easy to do. Perhaps take an even longer exposure of the stars for extra effect :)

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I take pictures so quickly, my highschool was "Continuous High".


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 Post subject:
PostPosted: Fri Aug 06, 2010 10:50 am 
Thanks - I'll give it a go :)
I'll probably wait until I get the Pentax K - 4/3 adapter for my Oly, though - that way I can use the big honkin' 400mm prime lens (which should equate to an 800mm due to the crop factor, IIRC). The longest I have now only goes up to 150mm.
It'll also offset the Sony's biggest shortfall - it can't shoot RAW :(

Floyd.


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 Post subject:
PostPosted: Tue Aug 10, 2010 11:52 am 
Update-
I think I've found my H5's limit...
Tried getting Saturn and Mars this past weekend - let's say the results were... lacking :(
Saturn ended up as a yellowish-green spot, with no evidence of rings, while Mars appeared as what could best be described as a "zit".

Such is life, I guess. It'll give me something to try later.

Floyd.


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 Post subject:
PostPosted: Thu Aug 12, 2010 3:37 pm 
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Joined: Mon Jan 18, 2010 3:52 pm
Posts: 2177
Location: The Netherlands
Is there a RAW function on the Sony? I dont think, but maybe...

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Ruben

Panasonic DMC-FZ18, Panasonic DMC-FZ28, Canon G5, Canon 350D, Canon 50D + BG-E2N
Tamron 17-50 2.8, Canon EF 70-200mm f/4L USM,
Canon 18-55 II plus lots of Minolta MD/M42 lenses and bodies


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 Post subject:
PostPosted: Mon Jan 17, 2011 5:02 am 
how did you know it is jupiter?


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 Post subject:
PostPosted: Mon Jan 17, 2011 7:21 am 
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Joined: Mon Jan 18, 2010 3:52 pm
Posts: 2177
Location: The Netherlands
Jupiter's on the sky the last months, other bright planets arent out there right now.

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Ruben

Panasonic DMC-FZ18, Panasonic DMC-FZ28, Canon G5, Canon 350D, Canon 50D + BG-E2N
Tamron 17-50 2.8, Canon EF 70-200mm f/4L USM,
Canon 18-55 II plus lots of Minolta MD/M42 lenses and bodies


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 Post subject:
PostPosted: Mon Jan 17, 2011 8:02 am 
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Joined: Sat Oct 11, 2008 8:27 pm
Posts: 404
Location: Bristol, UK
Some really good attempts there. Keep plugging away at it.

I found when I took a photo of Saturn (through my scope) I need a shutter speed of around 1/40th to capture any kind of detail on the surface. As others have said to capture the moons as well a composite of two shots is the way forward.

Looking forward to what develops.

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Lee Diggle
My Astronomy Blog | My Photography Gallery


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 Post subject:
PostPosted: Mon Jan 17, 2011 5:57 pm 
Had a run-in with a middle-ear infection that sort of... impeded my looking up for any length of time :x
By the time I got over it, the nights had gotten way too cold for me.
Once the night temps. get back into the 40's (F), I'll start back up again.
Hopefully, I'll have my adapter for the Oly and also have my main PC back up and running by then....

Floyd.


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