tjs247

I have a Sky Watcher 150 PDS and a Canon 600D I use to take images.

I'm  looking at purchasing a Sky-Watcher f4 Aplanatic Coma Corrector for my setup. It's as much as I can afford, but wondering if its a good choice?

One concern i have is that my scope is an f5  which this is designed for f4 but has very good reviews. 

On 24/09/2020 at 15:10, knobby said:

The ZWO should give better results (but mono) and you'll be able to use Firecapture or Sharpcap to control them.

I have seen great planetary images taken with a DSLR though ...

I'll have to zoom in with my dslr if filming planets.  They are quite small in live view.   So when i zoom in  while filming it makes the 1080p video recording much worse than not zooming in.

My Setup:

Skywatcher 150mm PDS

HEQ5 Pro Mount

Canon 600D  Unmodified.

I'll soon have my zwo asi 120mm mini.

My question is  (without buying any further equipment) weather I should use my canon for taking videos for planets or my zwo asi mini?

One issue is  when recording the live view of my canon camera, I cannot adjust the Exposure in live view, that is the exposure preview as the canon 600d does not have this feature.

This means for shooting planets with my dslr, I'm limited to filming 1080p 30fps video directly with the camera's video function which does let me adjust the exposure.

I'll try different eye pieces tonight. It's in the middle of the day so best I could do is a rough diagram. 

Well I've been having issues with my telescope.  I was looking at venus and I see like faint copies of Venus next to each other with actual Venus at the center.  I'm sure my scope.was collimated to. The mirror doesn't look quite good either, very dusty and a couple of smears somehow. So might just need a clean.

i've noticed a little reduction in image quality,  turns out the primary mirror looks covered with many specs of dust. 

Not sure how i'll go about cleaning it, i've cleaned a telescope mirror before but with this i'm not sure where to start,  especially re colimating when the collimation is done in the factory.

So i don't feel confidant at the moment

Any Advice? i'm not touching  it  till I've done more research on this.  

I've read the option of just sticking an air hose or something in and blowing off at least the loose dust on the mirror's surface.