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Transit of Mercury in the Spicule Layer. Phil took this great image with his Quantum 6 Scope, Solar Spectrum etalon and PGR Camera.

Welcome to Solar Chat! The best forum for Solar Astronomy
Moving forward from solar cycle 24 to 25

Search found 90 matches

by solarchatted
Sun May 26, 2019 3:59 pm
Forum: Solar Scope Modifications
Topic: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...
Replies: 13
Views: 944

Re: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...

I am now really tempted to get the Bresser Messier AR-90/900 OTA - I am not sure if I need to cut it or will work as is!
by solarchatted
Sun May 26, 2019 3:50 pm
Forum: Solar Scope Modifications
Topic: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...
Replies: 13
Views: 944

Re: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...

Here is one of the images I managed to take with SCT focuser one and wobbly nosepiece holder - nothing special, also a lot hazy. But surface I believe it is clearer! I 'think' this was with a 2x Barlow (with also 2x Barlow lens end screwed onto camera) - not sure ... https://astronomo.space/my-image...
by solarchatted
Sun May 26, 2019 9:12 am
Forum: Solar Scope Modifications
Topic: Improvements to your PST!
Replies: 6
Views: 1129

Re: Improvements to your PST!

I tried a 2x2 [used on a Canon camera] and I cannot focus. Tried everything within my knowledge to focus. I just cannot. Last week I also managed to attach a SCT 10:1 focuser [https://solarchatforum.com/viewtopic.php?t=26069#p235640] I rarely used, in place of the PST one and it is very good - view ...
by solarchatted
Sat May 25, 2019 4:35 pm
Forum: Solar Scope Modifications
Topic: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...
Replies: 13
Views: 944

Re: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...

I forgot to ask something: 1. The Bresser Messier AR-90/900 OTA Optical Tube Assembly https://www.telescopehouse.com/telescopes/telescopes-by-brand/brand-bresser-telescopes/bresser-messier-ar-90-900-ota-optical-tube-assembly.html , do I need to adjust tube length or not? 2. Do I still have to take l...
by solarchatted
Sat May 25, 2019 4:28 pm
Forum: Solar Scope Modifications
Topic: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...
Replies: 13
Views: 944

Re: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...

Thanks ... I did use 3 blocks of timber wrapped in Gaffa/Cloth tape on the ring over the PST tube to avoid scratches! I will have to find time to play a bit more with it. It is much brighter and I might end up using the 7nm Filter all the time - if not too narrow. One thing I do not understand ... s...
by solarchatted
Thu May 23, 2019 8:59 am
Forum: Solar Scope Modifications
Topic: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...
Replies: 13
Views: 944

Re: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...

I got it working! Far better focusing + more light getting through. I tried it yesterday with camera too, but although sky was clear, it was quite hazy - today might be clearer and I am at work! My only problem remains the how to attach PST eyepiece holder onto 'whatever' can hold it as it is a non ...
by solarchatted
Sun May 19, 2019 10:44 am
Forum: Solar Scope Modifications
Topic: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...
Replies: 13
Views: 944

Re: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...

OK, understood. Just slightly off-topic ... This morning I 'thought' I had some SUN out and it was out then clouded up by the time I was ready to 'try' a Revelation or GSO 10:1 focuser in place of the original PST prism, using PTFE tape and fits well! I had all OK, but the ITF with the whole PST ori...
by solarchatted
Sat May 18, 2019 5:21 pm
Forum: Solar Scope Modifications
Topic: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...
Replies: 13
Views: 944

Re: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...

Oops!
I just thought about a 63mm or maybe a 80mm ERF used on a Meade SCT 10" Classic [old one].
Using it off-axis with PST ?

I did get decent images in white light years ago and I was only playing with it!

Maybe 63mm too small for a F/10 254mm 2500mm FL ?
by solarchatted
Sat May 18, 2019 4:11 pm
Forum: Solar Scope Modifications
Topic: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...
Replies: 13
Views: 944

Re: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...

Hi Thank you very much for taking the time to reply. It is almost as clear as daylight now and I am guessing I will not need to modify AR152 inward as I might use a smaller ERF [90-100mm] and reach focus? Sorry for late reply as usual... I thought forum was set to auto-subscribe to get email notific...
by solarchatted
Wed May 08, 2019 12:07 pm
Forum: Solar Scope Modifications
Topic: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...
Replies: 13
Views: 944

Re: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...

Here a few images taken with PST + 178M.

https://astronomo.space/my-images/the-sun/

I t is so difficult to find good weather in Northern England to match my days off work!
by solarchatted
Wed May 08, 2019 12:02 pm
Forum: Solar Scope Modifications
Topic: PST Stage 1 + AR152, AR102, 72ED etc. next steps ...
Replies: 13
Views: 944

PST Stage 1 + AR152, AR102, 72ED etc. next steps ...

ADDITION - I failed to mention I will use the Altair 178M camera I am already using with PST Hi again! Sorry for being 'slow' and possibly thick. My plan: 1. I think, first thing is to get the 2" adaptor for PST - so I am ready to play with Stage 1 [I guess it is called?] 2. Then get a 100mm ERF [w...
by solarchatted
Sun Apr 28, 2019 6:16 pm
Forum: Solar Scope Modifications
Topic: Planning my first PST mod and need some help
Replies: 84
Views: 4255

Re: Planning my first PST mod and need some help

Hey Mauro, Some PST's are a bear to open up and are glued. I have opened two of them now. One was hard. I scratched it up good. The other was easy, it just came apart. You can use things like a heat gun or hair dryer to help warm up bonds (glue) and gently work things until they give. The most impo...
by solarchatted
Sun Apr 28, 2019 6:00 pm
Forum: Solar Scope Modifications
Topic: Planning my first PST mod and need some help
Replies: 84
Views: 4255

Re: Planning my first PST mod and need some help

Hi Mauro, have you tried unscrewing the gold tube by hand? I've had some PSTs that just unscrew with little force. If you're going to use your existing scopes you will need to get them working at f10 for the PST etalon. Sorry for very late reply, I went on holiday and then back to work, I am now ge...
by solarchatted
Tue Apr 09, 2019 3:33 pm
Forum: Solar Scope Modifications
Topic: Planning my first PST mod and need some help
Replies: 84
Views: 4255

Re: Planning my first PST mod and need some help

Finally found a little time to look and yes the best tool is the car oil filter tool [the one with a belt to avoid scratches], to remove PST tube. Which way? The normal anticlockwise movement? With left hand holding body [or vice with padding!] and right hand turning left or towards me if parallel i...
by solarchatted
Tue Apr 09, 2019 3:00 pm
Forum: Solar Scope Modifications
Topic: Planning my first PST mod and need some help
Replies: 84
Views: 4255

Re: Planning my first PST mod and need some help

You can PM me, if you wish ...
by solarchatted
Tue Apr 09, 2019 2:56 pm
Forum: Solar Scope Modifications
Topic: Planning my first PST mod and need some help
Replies: 84
Views: 4255

Planning my first PST mod and need some help

Hi Now I have a new ITF, things are 'clear' ! What I wish to do is the obvious mod to use PST as a Quark and use it on various scopes, including my AR152 F/6.5 My 'practical' questions: 1. Do I need to warm tube to unscrew it from PST? I do not wish to break anything or scratch tube! 2. I do not wis...
by solarchatted
Tue Apr 09, 2019 11:34 am
Forum: Solar Software
Topic: Solar FLAT for FULL Disc only - cannot seem to be able to use it
Replies: 17
Views: 1512

Re: Solar FLAT for FULL Disc only - cannot seem to be able to use it

Hi
Sorry for my absence - I was sick then went on Holiday!

I tried various 'things', then I found my lunch box does the job!

I hope to find the time to keep testing and learning, then I will need to make PST mod [without cutting original tube] and use it with my various scopes.

Mauro
by solarchatted
Sun Mar 24, 2019 4:04 pm
Forum: Solar Software
Topic: Solar FLAT for FULL Disc only - cannot seem to be able to use it
Replies: 17
Views: 1512

Re: Solar FLAT for FULL Disc only - cannot seem to be able to use it

Thank you all for your expert advice - I am learning. I think I might have done it wrongly on that particular learning test. Regarding the full disc, I tried various covers and it seems the one that transmit most light is my 'current' sandwich tub! Got FLATS OK for full disk - finally. Still trying ...
by solarchatted
Wed Mar 20, 2019 1:13 pm
Forum: Solar Software
Topic: Solar FLAT for FULL Disc only - cannot seem to be able to use it
Replies: 17
Views: 1512

Solar FLAT for FULL Disc only - cannot seem to be able to use it

Hi A quick (possibly stupid) question. I a learning and getting better and I normally manage OK to do Flats, but the only problem I have is with applying a FLAT on a FULL Solar disc. It is the 3-4 time I try and the flat it is always 'darkening' surface hugely when I add it in Autostakker [after cre...
by solarchatted
Sat Mar 09, 2019 6:46 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: New PST ITF?
Replies: 33
Views: 5464

Re: New PST ITF?

Ha ha ha ha ha ... Finally done it - with the O-ring too! The locking ring thread is NOT perfectly manufactured straight - it is slightly angled! I have taken filter + O-ring out, cleaned the threads using thin tweezers and then tried it without anything and found out the thread was not straight fro...
by solarchatted
Sat Mar 09, 2019 4:57 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: New PST ITF?
Replies: 33
Views: 5464

Re: New PST ITF?

Just got the replacement ITF from Maier. Which way should be fit? Just to be sure - I guess the Maier O-ring goes over the marked edge of the new ITF, but which way is the SUN side? Another guess: since the O-ring 'seems' to go on 'one' side only - as above, that must be the side where the screwed o...
by solarchatted
Mon Mar 04, 2019 3:46 pm
Forum: Solar Scope Modifications
Topic: Love my Val ERF
Replies: 9
Views: 955

Re: Love my Val ERF

Nice results there ... What an inspiring thread! :cool: I will be playing with my newly 'second-hand# PST and one day I will do stage 1 using my not much used Explorer Scientific AR152 F/6.5. I guess Altair 178M should be OK with AR152. It might be just my retirement hobby - mostly Solar/Lunar - I g...
by solarchatted
Sat Mar 02, 2019 10:58 am
Forum: Solar Scope Modifications
Topic: PST + DSLR Full disk problem ... AMENDED
Replies: 12
Views: 969

Re: PST + DSLR Full disk problem ... AMENDED

The pixels on your 178m are much better suited than the pixels on a 174m - 174m much better suited to longer focal ratios. Got it - thanks. I could have brought my PST to work this morning as SUN is very clear - idiot me - to test the adaptor with DSLR and 178M Hope tomorrow morning is decent enoug...