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M42 revisited

  • James Butler
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19 years 3 months ago #8384 by James Butler
M42 revisited was created by James Butler
Ffffffffreezing!

Spent the day sailing in the freezing water and then iced the cake by standing in the freezing dark and deciding that I don't have the right equipment for photographing Saturn.

Turned my attentions to M42 at prime focus. Much nicer shot than the one I took with the 200mm lens. Reading up on masks and have a 1 sec photo of the Trapezium to work on.



Date: 23rd January 2005
Time: 21:34 hrs UTC
Camera: Canon EOS300D at prime focus of LXD75 10" Schmidt Newtonian F4.0
Mount: LXD75 GEM
Exposure: 30 secs
ISO: 400
Processing: PSP9 - Black and White Points

James Butler

Astronomy Diary - astronomy-diary.blogspot.com/

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19 years 3 months ago #8385 by dave_lillis
Replied by dave_lillis on topic Re: M42 revisited
James,
Now thats what I'm talking about !!!
Thats a fine image, you must have a dark sky, how did you find the tracking?
Would you not go for a higher iso speed? so you can get more detail.
Sorry about all the Qs,

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

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19 years 3 months ago #8387 by DaveGrennan
Replied by DaveGrennan on topic Re: M42 revisited
Ooooh James *that* is one seeeeexxxyyyyy photo!!!

I cant beleive it worked that well with almost a full moon in the sky. I am sooooooo buying that camera. There is a guy in work who might be selling his and if so I will definitely buy it!!!

Did you take out the IR blocking filter or is that with the filter in?

Regards and Clear Skies,

Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here

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  • James Butler
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19 years 3 months ago #8388 by James Butler
Replied by James Butler on topic Re: M42 revisited

James,
Now thats what I'm talking about !!!
Thats a fine image, you must have a dark sky, how did you find the tracking?
Would you not go for a higher iso speed? so you can get more detail.
Sorry about all the Qs,


Crisp is not the word for the sky here. No whispy, high-level cloud at all. Trouble is, the moon is near full and only in the next constellation. I did try higher ISOs but the photos were washed out. As the Moon wanes and moves on into Leo then I will push it.

I can't increase the exposure length with prime focus otherwise the tracking is all out. I really need to think about building a permanent pier and shed and then I can sit there all night, tweaking the scope whilst running something like GuideDog, knowing that I can come back to the equipment the next evening with no setup to do.

James Butler

Astronomy Diary - astronomy-diary.blogspot.com/

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19 years 3 months ago #8389 by James Butler
Replied by James Butler on topic Re: M42 revisited

Ooooh James *that* is one seeeeexxxyyyyy photo!!!

I cant beleive it worked that well with almost a full moon in the sky. I am sooooooo buying that camera. There is a guy in work who might be selling his and if so I will definitely buy it!!!

Did you take out the IR blocking filter or is that with the filter in?


Thanks. I like this website best of all because we are always helping out when things go wrong or pushing each other to go one better when it goes right.

I have a standard off-the-peg camera. As I said in another thread, if I get round to using Hydrogen filters then it will be with a hi-res mono CCD camera. I use this camera for daytime landscapes too and would lose the sky without the IR filter.

James Butler

Astronomy Diary - astronomy-diary.blogspot.com/

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