Thor's Helmet at ISO 6400.

[tilbrook@rbe.ne]

Hi,

Thor's Helmet with an hour and twelve minutes of data.
This really shows the value of using ISO 6400 with a cooler box under dark skies.


8” F/4 astrograph , baader type 3 coma corrector,. HEQ Pro 5 mount, orion mini guider.
Camera.
Unmodded Cannon 1100D plus cooler box. 36 subs at ISO 6400. Stacked in Deep Sky Stacker .Processed in Photoshop Cs2..

Cheers,

Justin.

[multiweb]

Cool. I had no idea you could get that with a DSLR. That's a faint one. :thumbsup:

[tilbrook@rbe.ne]

Thanks Marc!:thumbsup:

I reckon the most difficult part of Thor's Helmet is taming the stars in the field.

Cheers,

Justin.

[Bassnut]

Thats tricky with a real camera,nice work!.

[RickS]

That's great, Justin! I would have thought you'd need mono and narrowband filters to get a decent image of this one. I guess NB would help with the star sizes but you have done a good job on that too.

Cheers,
Rick.

[tilbrook@rbe.ne]

Thanks Fred!:thumbsup:



Thanks Rick!:thumbsup:

I'm enjoying the challenge of the faint nebulae, shows anyone with a basic setup can do the same.

Cheers,

Justin.

[Geoff45]

Nice work Justin. Quite a good object to try with a DSLR because it captures all the OIII which I think is the best part of the image.
Geoff

[tilbrook@rbe.ne]

Thanks Geoff!:thumbsup:

Agreed.

Cheers,

Justin.

[cometcatcher]

Beauty Justin! :thumbsup:

Dunno how you get results with ISO6400 because it's rotten on my Pentax in summer. I tried it and gave it up as I do better with ISO400. Must be that secret weapon cooler box of yours. ;)

[tilbrook@rbe.ne]

Thanks Kevin!:thumbsup:

Cooler box certainly helps, but it's mostly down to the canon 1100D, Jo ( Nebulosity ) will back me up on this, he uses ISO 6400 too.

Cheers,

Justin.

[DJT]

That's a great capture, Justin. very well done. :thumbsup:

[tilbrook@rbe.ne]

Thanks David!:thumbsup:

Cheers,

Justin.

[Rod771]

That's great Justin! Well done! :thumbsup:

Do you know what temp the sensor is running? Are you using Backyard EOS?

Soooo many questions. :P

[tilbrook@rbe.ne]

Thanks Rod!:thumbsup:

It was 14c ambient, the cooler was running at 4c and it's average is 14c at the chip.

This seems pretty constant a 10c difference.
I use APT (Astro photography tool) to check chip temp, but most of the time I use EOS utility to do captures.

Cheers,

Justin.

[SimmoW]

Nice catch Justin, that looks a faint one to do. Yes the stars look a challenge to manage, which you've done well with.

[strongmanmike]

Another cool capture from the Tilbrook imaging factory, you can pump'm out mate :thumbsup:

Mike

[tilbrook@rbe.ne]

Thanks Mike!:thumbsup:

Love having a large Library of images, always plenty to play with.:)

Cheers,

Justin.

[Ross G]

Hi Justin,

Another great capture of a difficult object.

Looks great!

Ross.

[Regulus]

Once again you have broken the rules with you unmodded 1100D, and if you didn't get such good results, you'd be in serious trouble involving lots of frowns.
Hmmmm. U probably do encourage lots of thoughtful frowns anyway with that set up, and the killer results you get from it. :confuse3:
Well done, once again Justin. Lovely result.

Trev

[Shiraz]

what an excellent result - not sure how did you did that with a DSLR, but whatever, it worked!

[Asterix2020]

I didn't realise it was a hard target with a cooled, modded cam. Here's a pic I took last year. http://www.iceinspace.com.au/forum/showthread.php?t=119770&highlight=thors+helmet

It's a nice target, good job Justin with the unmodded camera. I agree the star field is very busy. I shot that at 1600 ISO, but I now found 800 ISO works best with my camera.

[tilbrook@rbe.ne]

Sorry for the late reply, been away.



Thanks Ross!



:thanx: Trev!

I assure you no black magic involved, just the luxury of dark skies and lots of processing.:)



Thanks Ray!

I guess I have a bee in my bonnet about what can be achieved with a standard DSLR.
Probably spend way too much time processing.



Thanks Paul!

Just checked out your image, love the vibrant colour.
What sort of skies are you imaging under?

Cheers,

Justin.

[Stevec35]

Another good one Justin. You sure keep turning them out.

Cheers

Steve

[tilbrook@rbe.ne]

Thanks Steve!

Yes I have lot's of images to play with!:D

Cheers,

Justin.

[Asterix2020]

It was taken from home, probably mag 5-5.5 lim mag skies, with some horizon light pollution. Taken with the CD-600D cooled and modded DSLR camera over 2 nights. Stacked with DSS, processed with Skytools, which I which brings out the colours nicely. No darks or flats taken, as I was using 1600 ISO and I use 800 ISO now and have a dark library for that but not for 1600 ISO. Will have to have another go at it sometime with the GSO RC8, as it was one of my early images with the Skywatcher ED80.

[tilbrook@rbe.ne]

Thanks for the info Paul!

I see you didn't use darks or flats, I do the same.
My cooler box keeps my subs relatively noise free.

Cheers,

Justin.