Search found 84 matches

by Bojan
Fri Aug 25, 2023 1:47 pm
Forum: This is SolarChat !!
Topic: Coronado BF30 - diagonal not needed? & BF preservation?
Replies: 5
Views: 382

Re: Coronado BF30 - diagonal not needed? & BF preservation?

It's probabaly just RG630 - has it any coating on it? Post a picture... After chatting more with Meade and Oliver from Beloptik, yes it's just a 630, so not doing much more than increasing contrast. So operation without it is totally fine which means I can reach focus with my binoviewers and smalle...
by Bojan
Wed Aug 23, 2023 12:24 pm
Forum: This is SolarChat !!
Topic: Coronado BF30 - diagonal not needed? & BF preservation?
Replies: 5
Views: 382

Re: Coronado BF30 - diagonal not needed? & BF preservation?

Use this equipment as written on it: telescope with both etalons --> internal BF --> diagonal with a red filter. This all. In your case internal BF + red glass diagonal = complete BF. That is the simple answer, but I messaged Meade and they said the diagonal is not needed. The diagonal is also too ...
by Bojan
Tue Aug 22, 2023 11:22 am
Forum: Solar Astronomy Shop and Swap
Topic: New 2nm G-Band filter from Altair
Replies: 15
Views: 2431

Re: New 2nm G-Band filter from Altair

So has anyone used this visually ? How would it compare with the Baader continuum/k filters for visual use ? Visually I find the 430nm filter considerably dimmer than the 540nm filter. Still it can be used visually without much difficulty. Faculae are more visible with the 430 vs the 540nm filter b...
by Bojan
Tue Aug 22, 2023 1:14 am
Forum: This is SolarChat !!
Topic: Coronado BF30 - diagonal not needed? & BF preservation?
Replies: 5
Views: 382

Coronado BF30 - diagonal not needed? & BF preservation?

I have a Solarmax2 90 DS with the BF30. The blocking filter is straight through but comes paired with a diagonal with a red lens in it. There's a sticker on the diagonal that explictely states: "WARNING! THIS DIAGONAL DOES NOT CONTAIN A BLOCKING FILTER. Use only with Coronado telescopes with BF...
by Bojan
Tue Aug 22, 2023 12:49 am
Forum: Solar Astronomy Shop and Swap
Topic: New 2nm G-Band filter from Altair
Replies: 15
Views: 2431

Re: New 2nm G-Band filter from Altair

So has anyone used this visually ? How would it compare with the Baader continuum/k filters for visual use ?
by Bojan
Fri Aug 11, 2023 2:56 pm
Forum: This is SolarChat !!
Topic: Solar H-Alpha chromosphere 48 panels mosaic from April
Replies: 21
Views: 1061

Re: Solar H-Alpha chromosphere 48 panels mosaic from April

This is really beautiful, nice work!
by Bojan
Mon May 29, 2023 10:16 pm
Forum: This is SolarChat !!
Topic: Dropped my Herschel Wedge
Replies: 5
Views: 266

Re: Dropped my Herschel Wedge

DeepSolar64 wrote: Mon May 29, 2023 10:11 pm Would a thermal heatsink glue work to put the sink back on the wedge?

https://www.amazon.com/heatsink-glue/s?k=heatsink+glue
That's a good idea. I do have some two part thermal cement that could work
by Bojan
Mon May 29, 2023 6:54 pm
Forum: This is SolarChat !!
Topic: Dropped my Herschel Wedge
Replies: 5
Views: 266

Dropped my Herschel Wedge

So 2 topics here: I have this scope: https://www.teleskop-express.de/shop/product_info.php/language/en/info/p6679_TS-Optics-PHOTOLINE-130-mm-f-7-FPL53-Triplet-APO-Refractor.html That I use for night time and white light. It has a 3.7" focuser which can handle a lot of weight but the clamping sy...
by Bojan
Thu May 25, 2023 10:34 am
Forum: This is SolarChat !!
Topic: solarmax 2 90 straight through blocking filter won't fit feathertouch
Replies: 11
Views: 447

Re: solarmax 2 90 straight through blocking filter won't fit feathertouch

With the BF30 the itf is inside the BF. The diagonal just has a red/ir filter if memory serves
by Bojan
Thu May 25, 2023 12:07 am
Forum: This is SolarChat !!
Topic: solarmax 2 90 straight through blocking filter won't fit feathertouch
Replies: 11
Views: 447

Re: solarmax 2 90 straight through blocking filter won't fit feathertouch

So I thought I was making some progress however no dice. First picture is the BF, the adapter that attaches it to the helical focuser and the diagonal. If you cannibalize the helical focuser you can make a nice long train that holds the BF30, adapter, cannibalized helical, and the diagonal. It's not...
by Bojan
Wed May 24, 2023 9:59 am
Forum: This is SolarChat !!
Topic: 21st May 2023 Altair G-band filter test
Replies: 43
Views: 2405

Re: 21st May 2023 Altair G-band filter test

I couldn't gather from the post, did you use it visually? Could you discern a difference between it and the baader visually ?
by Bojan
Wed May 17, 2023 5:42 pm
Forum: This is SolarChat !!
Topic: solarmax 2 90 straight through blocking filter won't fit feathertouch
Replies: 11
Views: 447

Re: solarmax 2 90 straight through blocking filter won't fit feathertouch

Rusted wrote: Wed May 17, 2023 4:53 pm Just for clarity:

What is the diameter of the exterior of the blocking filter?

Is it not a 2" push fit ?


blocking filter.jpg
It is same diameter as the nose of a 2" diagonal, but unsure how that helps to get a diagonal or eyepeices behind it
by Bojan
Wed May 17, 2023 1:19 pm
Forum: This is SolarChat !!
Topic: solarmax 2 90 straight through blocking filter won't fit feathertouch
Replies: 11
Views: 447

Re: solarmax 2 90 straight through blocking filter won't fit feathertouch

Hmm... It's too big to fit into the FeatherTouch? I have a BF15 diagonal type one. I am not familiar with how the straight-through is made. James The blocking filter is considerable smaller than the front of the focuser. It's the exact same diameter as the end of a 2" diagonal, but on the bloc...
by Bojan
Wed May 17, 2023 3:14 am
Forum: This is SolarChat !!
Topic: solarmax 2 90 straight through blocking filter won't fit feathertouch
Replies: 11
Views: 447

solarmax 2 90 straight through blocking filter won't fit feathertouch

So I have the 90mm solarmax 2 with a straight through blocking filter. I bought the right feathertouch focuser and adapted and well ... The feathertouch fits great onto the scope however the blocking filter doesn't screw on anywhere. It doesn't screw onto the front of a 2" diagonal, or anything...
by Bojan
Mon May 15, 2023 2:14 am
Forum: Solar Astronomy Shop and Swap
Topic: New 2nm G-Band filter from Altair
Replies: 15
Views: 2431

Re: New 2nm G-Band filter from Altair

You mention imaging, but description on the site mentions visual. How would this stack up to a baader continuum filter, if just talking about visual ?
by Bojan
Thu Apr 27, 2023 9:59 pm
Forum: SPoD Archive
Topic: AR3288-3285 in white light with the Mewlon 250
Replies: 24
Views: 1778

Re: AR3288-3285 in white light with the Mewlon 250

What are you using for filtering on the mewlon ?
by Bojan
Thu Apr 27, 2023 9:59 pm
Forum: This is SolarChat !!
Topic: AR3288-3285 in white light with the Mewlon 250
Replies: 30
Views: 1437

Re: AR3288-3285 in white light with the Mewlon 250

What are you using for filtering on the mewlon ?
by Bojan
Thu Apr 27, 2023 12:41 pm
Forum: This is SolarChat !!
Topic: Best Visual Scope?
Replies: 24
Views: 1023

Re: Best Visual Scope?

If you want I can send you a video file from my todays WL imaging session with a C9.25, then you can decide better if you like this for digital viewing. Seeing was good and in general relatively good at my location. Do you have some videos of the halpha views? That is more what I'm concerned about ...
by Bojan
Thu Apr 27, 2023 11:54 am
Forum: This is SolarChat !!
Topic: Best Visual Scope?
Replies: 24
Views: 1023

Re: Best Visual Scope?

I will try and go and make the SSM to see what kind of skies I'm actually dealing with. Is there a website that shows historical data for a region for transparency/seeing ? It may be that I stay with the 90 for visual, and then go to a C8/C9.25 for live digital viewing. Perhaps the best of both worl...
by Bojan
Thu Apr 27, 2023 1:29 am
Forum: This is SolarChat !!
Topic: Best Visual Scope?
Replies: 24
Views: 1023

Re: Best Visual Scope?

marktownley wrote: Wed Apr 26, 2023 7:46 pm How much money do you want to spend?

Why not start off with an SSM and measure what your limits are.
I like the scientific approach to this. Would that involve building one from scratch as the Arirylabs one seem to be out of stock everywhere?
by Bojan
Thu Apr 27, 2023 1:18 am
Forum: This is SolarChat !!
Topic: Best Visual Scope?
Replies: 24
Views: 1023

Re: Best Visual Scope?

DeepSolar64 wrote: Thu Apr 27, 2023 1:17 am 4000? If Lunt probably an LS60MT. New.
What's the rational behind that iff I already have the 90 double stack ?
by Bojan
Thu Apr 27, 2023 1:13 am
Forum: This is SolarChat !!
Topic: Best Visual Scope?
Replies: 24
Views: 1023

Re: Best Visual Scope?

Budget let's say 4,000.

SSM is what ? edit : solar scintillation monitor,got it.
by Bojan
Wed Apr 26, 2023 4:42 pm
Forum: This is SolarChat !!
Topic: Best Visual Scope?
Replies: 24
Views: 1023

Best Visual Scope?

Hey Guys, So I have SolarMaxII 90 dual stacked. Although I am enjoying it, it's hard watching you guys post all these amazing high resolution pictures. I have an old pst etalon lying around looking for a home. I had a Lunt152 SS for a few years, but I don't think my seeing conditions allowed me to e...
by Bojan
Sun Jul 19, 2020 11:43 pm
Forum: Solar Astronomy Shop and Swap
Topic: PST Mod Teleskop Austria Adapter and Etalon
Replies: 0
Views: 2029

PST Mod Teleskop Austria Adapter and Etalon

As seen in pictures. Best offer gets it.
by Bojan
Sun Jul 19, 2020 11:38 pm
Forum: Solar Astronomy Shop and Swap
Topic: 100 mm Lunt ERF In Custom Housing
Replies: 1
Views: 2034

100 mm Lunt ERF In Custom Housing

looking for 450$ Canadian
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by Bojan
Fri Aug 17, 2018 12:19 am
Forum: This is SolarChat !!
Topic: H-Alpha August 10th Lunt 152 - feedback wanted!
Replies: 7
Views: 1924

Re: H-Alpha August 10th Lunt 152 - feedback wanted!

Thanks Mark I appreciate that. Being in Ottawa Canada our weather is attrocious so the high magnification views are few and far between. Could you help me understand the technical reason why a larger aperture scope is more susceptible to poor seeing than a small one? Is it as simple as the big scope...
by Bojan
Thu Aug 16, 2018 1:30 am
Forum: This is SolarChat !!
Topic: H-Alpha August 10th Lunt 152 - feedback wanted!
Replies: 7
Views: 1924

Re: H-Alpha August 10th Lunt 152 - feedback wanted!

Thanks for the feedback. So all you're saying is throw some more money at it and it'll be better :) ?

How does your Lunt+Quark perform visually?

Thanks,

Bojan
by Bojan
Fri Aug 10, 2018 6:24 pm
Forum: This is SolarChat !!
Topic: H-Alpha August 10th Lunt 152 - feedback wanted!
Replies: 7
Views: 1924

H-Alpha August 10th Lunt 152 - feedback wanted!

Hey all, I have been using my Lunt 152 for the past few months and learning how to use it. I am really impressed by the pictures everyone is taking here on the forums and am looking for some guidance on how I could improve the views (and photos) through the 152. One things I struggle with is the sur...
by Bojan
Sat Oct 28, 2017 12:38 am
Forum: This is SolarChat !!
Topic: Total Solar Eclipse 2017 my final version
Replies: 13
Views: 2803

Re: Total Solar Eclipse 2017 my final version

gabrieli wrote: Thu Oct 26, 2017 7:18 pm I almost asked why the solar disk looks like the moon but then I remembered that this is a solar eclipse.
I've never seen an eclipse image presented this way. Effectively done.

Lou
LOL I said the same to myself.
by Bojan
Thu Mar 30, 2017 2:01 pm
Forum: This is SolarChat !!
Topic: AR 2644 H-alpha and WL
Replies: 20
Views: 3079

Re: AR 2644 H-alpha and WL

These are stunning. Amazing! Can we see pictures of your 204mm refractor?
by Bojan
Thu Mar 30, 2017 1:58 pm
Forum: This is SolarChat !!
Topic: AR2644/45 March 29, 280mm aperture
Replies: 3
Views: 839

Re: AR2644/45 March 29, 280mm aperture

That's awesome Valery.
by Bojan
Fri Aug 12, 2016 4:47 pm
Forum: This is SolarChat !!
Topic: AR2573-76 and Environs in Best Seeing!
Replies: 8
Views: 1792

Re: AR2573-76 and Environs in Best Seeing!

Beautiful pictures
by Bojan
Thu Aug 11, 2016 2:04 pm
Forum: This is SolarChat !!
Topic: Aug 10 Sun
Replies: 5
Views: 1274

Re: Aug 10 Sun

....Wow!
by Bojan
Tue Aug 02, 2016 12:53 pm
Forum: Solar Astronomy Shop and Swap
Topic: WTB: PST or PST Etalon
Replies: 1
Views: 3696

WTB: PST or PST Etalon

Looking to buy a good condition PST etalon shipped to Canada.

Thanks,

Bojan
by Bojan
Thu Jul 14, 2016 3:18 pm
Forum: This is SolarChat !!
Topic: Good News and Bad News about Solarchat forum
Replies: 14
Views: 2704

Re: Good News and Bad News about Solarchat forum

That's sad to hear. Luckily we have a great community here to keep this up and running. Donation coming up as well.
by Bojan
Wed Jul 13, 2016 4:15 pm
Forum: This is SolarChat !!
Topic: New American Pathways Summer Camp July 12th 2016 in 4K
Replies: 3
Views: 1618

Re: New American Pathways Summer Camp July 12th 2016 in 4K

Awesome, also the Facebook live stream is a great idea too.
by Bojan
Wed Jul 13, 2016 4:03 pm
Forum: This is SolarChat !!
Topic: International SUNday in Zadar, Croatia
Replies: 4
Views: 1704

International SUNday in Zadar, Croatia

I was taking some vacation in Croatia a few weeks ago, which coincided with International SUNDay. I drove to the nearest large town and they had one of those "to scale" solar system representations. Perfect! I setup right beside the Sun with my Solarmax 40. And then the fun DIDN'T start. I...
by Bojan
Mon May 30, 2016 1:39 am
Forum: Solar Scope Modifications
Topic: ERF's and a Quark +150mm F5 Refractor
Replies: 5
Views: 4402

Re: ERF's and a Quark +150mm F5 Refractor

Acording to daystar an ERF is necessary only above 150mm however verify this yourself. Yes it is possible to mount an ERF internally but you will still be rejecting the heat in the tube which will cause turbulence and "poor seeing". You won't be getting the full benefits of mounting the ER...
by Bojan
Thu May 26, 2016 6:28 pm
Forum: This is SolarChat !!
Topic: An old AR, a little flare, a new AR and some nice filaments
Replies: 18
Views: 1589

Re: An old AR, a little flare, a new AR and some nice filame

I just heard myself say "wow" outloud at those H-alpha shots. Amazing!
by Bojan
Wed May 25, 2016 1:22 pm
Forum: This is SolarChat !!
Topic: Equipment recommendation for a possible comeback
Replies: 27
Views: 4696

Re: Equipment recommendation for a possible comeback

Just read this thread, not sure that the Quark is a good idea any more: http://solarchat.natca.net/viewtopic.php?f=10&t=19838 :( I was recently looking into this option as well. The quark seems like a low cost and versatile option and I was ready to click the buy button. However after reading r...
by Bojan
Wed May 25, 2016 2:21 am
Forum: This is SolarChat !!
Topic: Equipment recommendation for a possible comeback
Replies: 27
Views: 4696

Re: Equipment recommendation for a possible comeback

You can use the new or old, preferably you'd want to look through it and verify the etalon is in good shape. No banding or uneven illumination. The only difference I have read is the new PST have a LOT more lock-tight on the threads so disassembling the PST really is the hardest part of this endeavor.
by Bojan
Tue May 24, 2016 5:56 pm
Forum: This is SolarChat !!
Topic: Equipment recommendation for a possible comeback
Replies: 27
Views: 4696

Re: Equipment recommendation for a possible comeback

Bojan thanks for the info. I have a friend who can make custom work for me even for free or for a cheap price, he made a 150mm refractor mod with two Lunt50 filters. That is why I said that it sounds better, perhaps I should start to hunt for a used PST right now instead of the Quark :) I have no r...
by Bojan
Tue May 24, 2016 5:38 pm
Forum: This is SolarChat !!
Topic: Charlie Bates in Iqaluit Canada 63' North and -25C!
Replies: 6
Views: 1737

Charlie Bates in Iqaluit Canada 63' North and -25C!

I performed this outreach event a few months ago, but wanted to share some beautiful pictures from the event. This was at Ecole des Trois Soleils (that's "school of three Suns", don't worry, I only saw one), and was at 63 degrees north!! I was only able to bring my solarmax 40 and trusty s...