Screwed up my SCT, big time :(

[Minhlead]

The weather here is quite bad this whole week, but I can't wait so I took my scope out and do some test. Did not get a bright enough star to do collimation test so I'm left with the planets and the result are as follow. I used a 5x barlow with my Nexstar 8SE under poor seeing condition (thin cloud, the moon has this big, hazy crown around it) 

Saturn with 120 secs capture at 25fps, stacked 300 best frames; SS 1/24; ISO 12800; Camera Sony A7s; Barlow 5x; Nexstar 8SE. sharpening and denoise with lightroom

  

Jupiter with 60 secs capture at 25fps, stacked 120 best frames; SS 1/50; ISO 51200; Camera Sony A7s; Barlow 5x; Nexstar 8SE. sharpening and denoise with lightroom

Moon crater with 30 secs capture at 25fps, stacked 80 best frames; SS 1/50; ISO 400; Camera Sony A7s; Barlow 5x; Nexstar 8SE. sharpening and denoise with lightroom

I could not seems to capture much of Jovian details on Jupiter, I did not know is it because of the collimation of I simply pushed my scope out of its power with 5x barlow. 

What do you guys thinks? 

[Peter Drew]

Good images for a C8 in less than ideal conditions. I think overpowering is affecting the image more than any collimation issues.

[Ben the Ignorant]

Wouldn't you have less noise with a lower ISO?

[Minhlead]

4 hours ago, Peter Drew said:

Good images for a C8 in less than ideal conditions. I think overpowering is affecting the image more than any collimation issues.

Yeap. I'll keep an eye out for better weather. No much hope though since it's monsoon season here.

4 hours ago, Ben the Ignorant said:

Wouldn't you have less noise with a lower ISO?

Yeah I would but then again the seeing condition is not that good so I didnt have much light from the planet to begin with. The 5x barlow reduce f ratio to almose f/50 which is insane. I have to bump up the ISO to get a resonably bright image. The noise level is high but managable and I figured since i'm stacking anyway, the noise would not be much of a problem.

[Minhlead]

Mars and Saturn with better seeing. My heart sank when I look through the scope and see that the dust storm is still raging

[Minhlead]

Also, Jupiter with better seeing

[Ben the Ignorant]

Is that a bright storm at Saturn's equator?

[Minhlead]

56 minutes ago, Ben the Ignorant said:

Is that a brigth storm at Saturn's equator?

Im not quite sure. The image is so noisy Im not sure if it's noise or really something there