First trial on my modified 350D - The Rosette Nebula

Post by **Airconvent** » Thu Jan 18, 2007 12:04 am

Hi
Corrected your post so the link can be seen.
An ex-singstroian Tan Guan (who takes excellent images from Singapore) did modify his DSLR to take those images but have since moved to Australia and sold off his camera as he has upgraded to ccd imaging. Do a search for him and check out his posts.

cataclysm · Post by **cataclysm** » Thu Jan 18, 2007 12:33 am

Corrected your post so the link can be seen

Thanks Mr Airconvent!

cataclysm · Post by **cataclysm** » Thu Jan 18, 2007 12:47 am

now that your camera is modified, can it still take non astro pictures?

Hi Siahheng, yes you can still take normal daylight photography with the help of a front screw in IR limiting filter. However, the white balance will be more tricky to manage. Custom white balance is vital to get proper colours on normal pictures.
Instead, with the new found capabilities, IR photography will be more interesting. By employing IR passing filters such Hoya R72 IR filter on the pictures illustrated below.

Tachyon · Post by **Tachyon** » Fri Jan 19, 2007 10:20 am

I'm more amazed that you can find a clear patch of sky to take the picture! Kudos to you!

aquillae · Post by **aquillae** » Fri Jan 19, 2007 11:09 am

Nice Rosette shot!
It has some noise on it, I think ISO1600 + our tropical temperature is a bit pushing it.
I m using the 350D too, can you please post the "unaltered" 90sec pic (jpeg compression + resizing is ok) ? I've never imaged this object before and I'm curious about the amount of nebulosity on the "raw" image.

Thank you and clear skies,

Jeff

cataclysm · Post by **cataclysm** » Fri Jan 19, 2007 6:53 pm

It has some noise on it, I think ISO1600 + our tropical temperature is a bit pushing it.
I m using the 350D too, can you please post the "unaltered" 90sec pic (jpeg compression + resizing is ok) ? I've never imaged this object before and I'm curious about the amount of nebulosity on the "raw" image

Hi aquilae, here is an unaltered image converted from raw to jpeg with compression. As you can see, the whole image is really red revealing little details of the nebula. The rule of thumb to get good images under our light polluted skies is to stack....stack....and more stacking.
If you are viewing this with LCD monitor, try tilting it at an acute angle to reveal the faint image of the nebula.
Happy imaging.

aquillae · Post by **aquillae** » Tue Jan 23, 2007 11:28 pm

Thanks Cataclysm, now I got some idea of what to expect in the future

great job on bringing the details out too.

cataclysm · Post by **cataclysm** » Tue Jan 23, 2007 11:46 pm

Thanks Cataclysm, now I got some idea of what to expect in the future
great job on bringing the details out too.

Hi aquilae, thanks for your compliment. We all learn from each other. I love this forum, the guys here are really great , & full of wonderful people who are willing share.