Jupiter from 200p and DSLR

[ste2010]

Very nice. I especially like the smaller Jupiter with the moons as little points of light!

[astromartian]

great pictures there

I noticed that you mentioned that you had stacked frames from a video, is there any chance I could get nice pictures using a single exposure? If so any idea of the settings (ie exp, apareture and iso)?

[LeeWilky]

great pictures there

I noticed that you mentioned that you had stacked frames from a video, is there any chance I could get nice pictures using a single exposure? If so any idea of the settings (ie exp, apareture and iso)?

I did take a few single exposures but you don't really get any detail to be honest. Not with my scope anyway.

As for settings i use ISO 200 as anything higher is over exposed for me and my DSLR is mounted direct to the scope via a x2Barlow so you can't choose aperture size.

When shooting the video I play around with various shutter speeds and tend to find in the region of 1/200 works for the images above but it changes depending on how good conditions are.

Hope this helps

[LeeWilky]

It turns out my scope was well out of collimation too so i had a go and got it better but far from perfect before light failed me and managed these. 

[Johnny4365]

Those latest pics look much better.

Is that purely down to collimating the scope or were conditions better as well ?

[LeeWilky]

Thanks mate

Conditions where probably worse so definitely collimation.

I still hasn't got it collimated perfectly so going to get they sorted when I have time.

[Ryan_86]

Hi Lee,

I found it very interesting reading your post as I attempted Jupiter using a 200p still on a dobs mount (until funds & partner) allow & a Canon 600d, no Barlow but my dslr has the digital crop/zoom mode so recorded  a vid of 1:30secs at x3. It's a stack of 2152 frames from a possible 2376. Run through pipp, stacked in AS2, wavelets in registax6 & tidied up in PS CS3.

I done this image Saturday night. As soon as I collected my data the clouds came rolling in "typical welsh/british weather". Quite lucky

I thought you would be interested as they are similar.

Thanks

Ryan

[Kropster]

That is impressive. Might have a go with my Dob.

Didn't think it would be in field of view long enough... but this proves otherwise.

[LeeWilky]

That is impressive. Might have a go with my Dob.

Didn't think it would be in field of view long enough... but this proves otherwise.

Ryan very nice pic mate

The beauty of filming is you can track the planet mate so you don't need to worry about how long it's in your FOV just start filming and manually track the planet just don't go above 5 minutes as Jupiter spins very fast.

[Kropster]

Can you track well smoothly enough with a Dob? Don't the nudges ruin the movie?

[LeeWilky]

Can you track well smoothly enough with a Dob? Don't the nudges ruin the movie?

the beauty if shooting a movie is the programs we use automatically find and use the best frames so as long as you get a few decent frames then it doesn't matter how much you throw the scope around

I tend to let the planet travel across the field of view a bit then adjust the scope ahead of it and let it travel through again that way you limit how much you bob the scope around.

[Ryan_86]

Thanks both. I didn't  think of moving the scope to keep it in fov as I thought keeping it steady was critical but will take your advice and give it a whirl when weather permits. Hopefully in a few months I wont need to worry about this as a NEQ6 is on the list.

Can I ask Lee, when stacking what % of good frames do you use? I went for 50% in AS2 for this.

Thanks

Ryan

[LeeWilky]

Thanks both. I didn't think of moving the scope to keep it in fov as I thought keeping it steady was critical but will take your advice and give it a whirl when weather permits. Hopefully in a few months I wont need to worry about this as a NEQ6 is on the list.

Can I ask Lee, when stacking what % of good frames do you use? I went for 50% in AS2 for this.

Thanks

Ryan

I noticed that you never used a Barlow for that image. The x2 Barlow that came with your 200p should be threaded so you can attach that to your DSLR in case you never noticed

As for the amount of frames I stack it depends on the quality of the vid when I analyse it in Autostakkert so different every time. However I find that around 40-50% seems to work best.

[Ryan_86]

My 200p did not come with a barlow, I am curious why it didn't now. It came with the standard 10 & 25mm ep's, a 2inch ep adapter & on the barrel there is a t-mount thread which I connect my dslr to with a t-ring. Did yours include the same?

[LeeWilky]

My 200p did not come with a barlow, I am curious why it didn't now. It came with the standard 10 & 25mm ep's, a 2inch ep adapter & on the barrel there is a t-mount thread which I connect my dslr to with a t-ring. Did yours include the same?

yep all the same plus a x2 Barlow. Very strange.

I bought mine from Wex Photographic and it's the SW Explorer 200p EQ5.

[Kropster]

No Barlow with my 250P dob.....but I think that is uaual with dobs.