Search found 11 matches

by BillyBoyBoy
Thu Jan 03, 2019 2:50 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Multiple aperture off axis mask with white light film on dob
Replies: 6
Views: 186

Re: Multiple aperture off axis mask with white light film on dob

Another question.

Does the aperture have to be circular? As long as it's one aperture, it can be any shape, like oval, right?

Bill
by BillyBoyBoy
Thu Jan 03, 2019 1:29 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Multiple aperture off axis mask with white light film on dob
Replies: 6
Views: 186

Re: Multiple aperture off axis mask with white light film on dob

The longest solar minimum ever is the one you are in the middle of when you discover solar astronomy. Hey, at least it buys me time to research and save up for the Ha gear. I get the impression that it might cause diffraction issues, as if the mask part were really wide spider vanes in between the h...
by BillyBoyBoy
Thu Jan 03, 2019 5:35 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Multiple aperture off axis mask with white light film on dob
Replies: 6
Views: 186

Multiple aperture off axis mask with white light film on dob

Hello and happy 2019! I have purchased a Sumerian Alkaid 12" f/5 dob for a travel visual scope. For those not familiar, it packs down to a suitcase that is smaller than carry on dimensions. The plan is to use this scope for night viewing, yes, but also have a white light filter for solar viewing. I ...
by BillyBoyBoy
Thu Sep 20, 2018 5:20 am
Forum: This is SolarChat !!
Topic: Exploding arch prom from 9/19
Replies: 16
Views: 704

Re: Exploding arch prom from 9/19

Stunning!
by BillyBoyBoy
Thu Sep 20, 2018 5:20 am
Forum: SPoD Archive
Topic: Exploding arch prom from 9/19
Replies: 12
Views: 386

Re: Exploding arch prom from 9/19

Stunning!
by BillyBoyBoy
Thu Sep 20, 2018 4:15 am
Forum: This is SolarChat !!
Topic: Why is the PST etalon not sold on its own?
Replies: 9
Views: 601

Re: Why is the PST etalon not sold on its own?

Ok, that's hilarious. For the record, I'm looking at a Quantum solid on the back of maybe an AiryLab HaT. I know the benefits of double stacking, and was checking out my options. I've been considering the Lunt DSII module made for the LS80... thank you George :D The answers in the thread, especially...
by BillyBoyBoy
Tue Sep 18, 2018 1:57 pm
Forum: This is SolarChat !!
Topic: Why is the PST etalon not sold on its own?
Replies: 9
Views: 601

Re: Why is the PST etalon not sold on its own?

Yes, detailed enough. Thank you for your insight, and it probably needed to be said.
by BillyBoyBoy
Tue Sep 18, 2018 4:03 am
Forum: This is SolarChat !!
Topic: Why is the PST etalon not sold on its own?
Replies: 9
Views: 601

Re: Why is the PST etalon not sold on its own?

But what about all the other manufacturers producing etalons?

Can you provide some more detail to flesh out your previous answer? If not done right, all solar is dangerous.
by BillyBoyBoy
Tue Sep 18, 2018 3:17 am
Forum: This is SolarChat !!
Topic: Why is the PST etalon not sold on its own?
Replies: 9
Views: 601

Why is the PST etalon not sold on its own?

Hello! I am a new SolarChat member, but not a new reader. I am on CN as well and I am going on about two years of painfully patient research about imaging and visual for solar. I've been on my 16" dob for a few years and I've been on a VERY patient campaign to get some proper gear for imaging and so...