Search found 10 matches

by Stephanh
Mon May 29, 2017 12:04 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What am I missing?
Replies: 1
Views: 2542

What am I missing?

I tried using a 60ii and a Skris 274M today for the first time.

I had some reflection in a corner of the FOV.
Someone suggested that I use a UV/IR filter threaded on the camera nosepiece. Before ordering one, I thought I should ask the experts on this forum .
Do you think it would work?



thanks!
by Stephanh
Mon May 22, 2017 7:36 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Damaging a camera?
Replies: 2
Views: 2839

Damaging a camera?

Would running an uncooled CMOS camera for a few hours during an outreach thru an H-alpha scope dangerous for the camera?
Can it over-heat and be damaged? I would shade it and typical day temperature is 20-25 degrees Celcius.

thanks
by Stephanh
Tue May 16, 2017 12:50 am
Forum: This is SolarChat !!
Topic: Camera for a modified PST 70mm scope?
Replies: 5
Views: 1244

Re: Camera for a modified PST 70mm scope?

Merlin66 wrote: Tue May 16, 2017 12:16 am Any Newton ring problems can be effectively suppressed using the Baader or ZWO T2 tilter.
Great! I'll keep that in mind!
by Stephanh
Tue May 16, 2017 12:48 am
Forum: This is SolarChat !!
Topic: Camera for a modified PST 70mm scope?
Replies: 5
Views: 1244

Re: Camera for a modified PST 70mm scope?

You can do mosaics to make a full disk or use a reducer to fit the disk on the chip. The reduction of the reducer depends on the distance to the chip surface and so you can optimise that by adding or removing spacers. The main problem with a PST mod scope and a full disk image will be to get an eve...
by Stephanh
Mon May 15, 2017 3:39 pm
Forum: This is SolarChat !!
Topic: Camera for a modified PST 70mm scope?
Replies: 5
Views: 1244

Camera for a modified PST 70mm scope?

Well, the deal on the PST felt thru... BUT I acquired a modified PST 70mm scope instead (F.L. 700mm). :cool: I am trying to figure out which camera (or camera/reducer) would allow me to view full disk and work well. I already own an ASI120MM but I will not be able to get the entire disk into view at...
by Stephanh
Sat May 13, 2017 5:38 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What setup to do outreach with PST?
Replies: 11
Views: 4383

Re: What setup to do outreach with PST?

But this reducer would bring the f-ratio down, from f10 to....f5 for a 0.5X. Correct? Wouldn't that go against the f10 requirement? Getting confused....
by Stephanh
Sat May 13, 2017 3:31 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What setup to do outreach with PST?
Replies: 11
Views: 4383

Re: What setup to do outreach with PST?

Oh I see.
What would be a solution to get the full disk in HA with this PST mod arrangement while keeping the same camera? I guess using a reducer is out of the question.
by Stephanh
Sat May 13, 2017 2:43 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What setup to do outreach with PST?
Replies: 11
Views: 4383

Re: What setup to do outreach with PST?

Thanks for the quick reply.

Is this the commonly used filter with which you can only see the sun spot on a totally white disk? I was hoping to have a more "Ha view" since I will be using the back end of a PST and blocking filter.
by Stephanh
Sat May 13, 2017 2:32 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What setup to do outreach with PST?
Replies: 11
Views: 4383

Re: What setup to do outreach with PST?

The PST purchase felt thru. I now am looking at a modified PST from a local user . It is installed on a 90mm achromat with a 1000mm focal length. It comes with an ERF and a BF10 for diagonal. The ASI120MM will not give me full disk view with this setup. Not even with a .5 reducer. I have a 50mm guid...
by Stephanh
Thu May 11, 2017 1:12 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: What setup to do outreach with PST?
Replies: 11
Views: 4383

What setup to do outreach with PST?

Hi, Newbie alert!! So go gentle on acronyms and specialized vocabulary. :D I purchased a PST and would like to do some outreach. My goal is to use the laptop to show the live image of the sun at local schools science fairs. I already have a good tripod, a ZWO ASI120MM camera and laptop with the need...