[whzzz28 (Nathan)]

Originally Posted by 2stroke

You really have to mod your camera as the IR cut is way to strong, if you check my 1100d modding thread you will see the massive change this makes. http://www.iceinspace.com.au/forum/s...ad.php?t=88886 post 23

Sorry, i should have mentioned - this is modified. I followed Gary's instructions (same as that thread basically) and removed the IR (blue) filter. The star color problems are new, and i did set a customer white balance profile on the camera, so my thoughts are that that is somehow causing issues. My stars seem to be bluer than normal. Ive reset the camera the auto white balance which was working fine before.

Originally Posted by 2stroke

At ISO 1600 your really pushing the 1100D in normal temps, try a DIY cooler box. Atm my wife is running hers at iso 800 and just using more subs. If your just using the camera for AP work and run it via usb, you could loose the LCD which would also aid cooling.

I tried ISO 800, it just wasn't sensitive enough i found.
An example, here is a test run i did at ISO 800.
NGC3247, 10min subs x 15. As you can see, the nebulosity is only just coming in. This probably needed 20min subs.
http://core-au.net/astro/ngc3247/lig..._DBE_clone.jpg
That being said, there was less noise.

Originally Posted by 2stroke

Edit: dam just scrolled down that thing is filthy, have you tried a sensor swab that maybe oil or something?

Yep - the long dust/hair is stuck fast between the sensor and the plastic casing, even a swab cant remove it. The other stuff comes off. Sadly i did use my dust remover (aka blower) on the camera, then attached the FF straight away, but somehow the dust remains. Will have to try with some cleaning fluid.