EYE OF GOD (NGC 7293) imaging set up - APO Refractor n DSLR

[PETER LOO]

I used the following set up to shoot the Helix Nebula (Eye of God) on Saturday 31 Aug 2013 at Bedok South
TS 65, FL =420mm, F6.5
Canon 500D Filter Mod & Heat Sink Mod (self)
Vixen GPD2 Mount
Orion Star Shoot Auto Guider run on PHD Guide
Methods:
Polar aligned with Lagi Simple Method
Data acquisition: Native LiveView shoot by Canon with Long exposure noise reduction function switched "ON"
Weak signal recovery: Combine 2 to 3 shots first before processing it in Nebulosity2, this in my belief , will preserve more detail than individually processing it before combining.
My reason for switching on the Long exposure reduction function: color conversion is nicer than to work from RAW & then calibrate it in s/w like Nebulosity, Maxim DL etc (in my own belief and preference - no need to argue or follow)
Data Info:
13 selected sub-exposures: ISO 800 Max time = 130s, Avg time = 92s, average sensor Temp = 37.6 Deg C.
Shooting evironment:
Got street lamp and HDB lights around this open football field. Cumulus cloud keep on floating in, that's why 4 hours only take few sub
while Gaussian noise is largely minimized via the heat sink attached (bought from Sim Lim Tower), external light pollution can't be help.

[MooEy]

hmm...didn't know there's someone with equipment so similar to mine

[PETER LOO]

i recon that your Sensor is cooler bro.