Tarantula vs the Eagle

[MGTechDVP]

Hi everyone,

A mate has given me his old 300D a few weeks ago, I took it out last night to see how it performs before the replacement glass arrives and I mod it to full spectrum.
I thought that it performed good, considering that the moon was at 85%-90% illuminated and there was heaps of skyglow.

To get these images I used the UHC/LPR, CLR and IR/UV filters stacked before the DSLR sensor to try to cut out some of the glowing sky.

M16 was 22 x 2 minute subs & 21 1 minute subs at ISO1600.
The Tarantula Nebula was 30 x 2 minute subs and 30 x 1 minute subs at ISO800.
Both images were stacked in Nebulosity 3 and levels & colours tweaked in PS.

I finished compiling the DMK41 14 segments of the 1st Quarter moon from the 27th July in one image, I though it came out OK.

Mariusz

[jenchris]

What's the little squiggles all about?
Like the Tarantula pic - one of my faves.

[scagman]

I get the same things on my images and I think its hot pixels on the chip. A bad pixel map may remove them.

The shots look good otherwise.

Regards

[MGTechDVP]

Hi All,

The "squigly" lines are failing to dark subtract the dead/overactive/noise pixes from each sub, and as the image drifts a bit over the whole exposure time, then when it get stacked and aligned the noisy pixels are moved in the final frame, resulting in what looks like a line over 50 or 60 stacked images.

I still don't understand why it drifts when the guider is solid, rigid and star shows absolutely no drift in the preview window.

Mariusz