Search found 29828 matches

by marktownley
Thu Jan 26, 2012 4:31 pm
Forum: Solar Scope Modifications
Topic: DIY Herschel Wedge -Take II
Replies: 57
Views: 6863

Re: DIY Herschel Wedge -Take II

Great stuff Ken! Glad this is working well :)

What are you after aluminuim wise? Maybe something I can help you with...
by marktownley
Thu Jan 26, 2012 7:09 am
Forum: This is SolarChat !!
Topic: WELCOME RICHARD BAILEY (Rick) to the Charlie Bates Solar Astronomy Outreach Club!
Replies: 11
Views: 704

Re: WELCOME RICHARD BAILEY (Rick) to the Charlie Bates Solar Astronomy Outreach Club!

Welcome!

Now, does anyone want to be the UK contact so I can send a big batch of stuff there in one shipment and have you distribute it for the club?

I'm more than happy to do this if you want Stephen :)
by marktownley
Thu Jan 26, 2012 7:02 am
Forum: This is SolarChat !!
Topic: Solar Lecture By Eminent UK Physicists 20th January
Replies: 8
Views: 455

Re: Solar Lecture By Eminent UK Physicists 20th January

Hi Everyone, Please find attached the solar powerpoint that was used for the presentation. Sorry for the delay in getting it up here, initially wasn't able to upload a powerpoint, but Stephen has altered the forum rules to make it possible. Hope is of interest - it was to our students. Article has n...
by marktownley
Wed Jan 25, 2012 10:23 pm
Forum: Solar Scope Modifications
Topic: Commercial adaptors for PST mods, Stage I and Stage II
Replies: 50
Views: 4276

Re: Commercial adaptors for PST mods, Stage I and Stage II

That's a brilliant account Kev! Thanks very much for that :)
by marktownley
Wed Jan 25, 2012 9:42 pm
Forum: Solar Scope Modifications
Topic: Commercial adaptors for PST mods, Stage I and Stage II
Replies: 50
Views: 4276

Re: Commercial adaptors for PST mods, Stage I and Stage II

No.
The M50 is a 1.0mm pitch.

Dang! I knew it was too good to be true... Oh well! :whistle:
by marktownley
Wed Jan 25, 2012 9:40 pm
Forum: This is SolarChat !!
Topic: SUN in January 2012
Replies: 12
Views: 743

Re: SUN in January 2012

Love these 'postcard' images you do Pedro, then wehn you click on the full size it becomes a poster! brilliant stuff! B)
by marktownley
Wed Jan 25, 2012 9:35 pm
Forum: This is SolarChat !!
Topic: Solar processing challenge
Replies: 17
Views: 1224

Re: Solar processing challenge

Ta mate, yeah I agree, on reflection it (mine) is a touch on the dark side. Fun to have a play around on a different image though :)
by marktownley
Wed Jan 25, 2012 9:26 pm
Forum: Solar Scope Modifications
Topic: Commercial adaptors for PST mods, Stage I and Stage II
Replies: 50
Views: 4276

Re: Commercial adaptors for PST mods, Stage I and Stage II

Is this achievable by mating up readily available step up / step down rings? Could you use one of these http://www.ebay.co.uk/itm/260776776229?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 on the t-thread end Then depending on whether you want a male or female m50 pitch on the other end either ...
by marktownley
Wed Jan 25, 2012 9:04 pm
Forum: This is SolarChat !!
Topic: Solar processing challenge
Replies: 17
Views: 1224

Re: Solar processing challenge

Here's my take on it Kev... :)


01-LOHA_180oof900_stacked by Mark Townley, on Flickr
by marktownley
Wed Jan 25, 2012 8:24 pm
Forum: This is SolarChat !!
Topic: Solar flare yesterday.
Replies: 11
Views: 624

Re: Solar flare yesterday.

That's so weird Mark, we are so alike it's scary :) It will be a trade in so the garage can have the problem. We've never needed the boot rack, we must travel light as even Eurocamping in France we even had enough space for the PST and many bottles of wine. It's going to break my heart though all t...
by marktownley
Wed Jan 25, 2012 6:27 pm
Forum: Solar Scope Modifications
Topic: Commercial adaptors for PST mods, Stage I and Stage II
Replies: 50
Views: 4276

Re: Commercial adaptors for PST mods, Stage I and Stage II

OK, be patient with me here, never done a PST mod so trying to get my head around what is needed...

The m50 screws into the black box of the pst and the other end of the adapter is a SCT thread which screws into where?

Do you have a pic of one at all?
by marktownley
Wed Jan 25, 2012 6:10 pm
Forum: Solar Scope Modifications
Topic: Commercial adaptors for PST mods, Stage I and Stage II
Replies: 50
Views: 4276

Re: Commercial adaptors for PST mods, Stage I and Stage II

I'd prefer a rear adaptor going from M50 to either SCT thread or a T thread.....

So, a m50x1mm to SCT thread... what size is a sct thread?
by marktownley
Wed Jan 25, 2012 5:35 pm
Forum: Solar Scope Modifications
Topic: Commercial adaptors for PST mods, Stage I and Stage II
Replies: 50
Views: 4276

Re: Commercial adaptors for PST mods, Stage I and Stage II

Frustrating. I hear what you're saying Ken.

What size threads / adapters are required? Where there's a will there's a way, and between us on this forum I reckon we can come up with a solution... ;)
by marktownley
Wed Jan 25, 2012 5:32 pm
Forum: This is SolarChat !!
Topic: Sun 25.1.2012
Replies: 8
Views: 397

Re: Sun 25.1.2012

Fantastic shots from Barcelona! I like! :)
by marktownley
Wed Jan 25, 2012 5:29 pm
Forum: This is SolarChat !!
Topic: Cub Scouts Jan 24th 2012
Replies: 7
Views: 319

Re: Cub Scouts Jan 24th 2012

Top stuff as always Stephen! B)
by marktownley
Wed Jan 25, 2012 5:28 pm
Forum: This is SolarChat !!
Topic: Solar flare yesterday.
Replies: 11
Views: 624

Re: Solar flare yesterday.

Hi Brad, Sadly I have never been to Montana but I would love too. Montana is my little 10 year old car, but sadly my husband thinks it too old so I think it will be gone by March. Then what, do I need to change my name? http://www.flickr.com/photos/alexandra4/6159116819/in/set-72157628535629359/lig...
by marktownley
Wed Jan 25, 2012 5:22 pm
Forum: This is SolarChat !!
Topic: Imaging Source DMK21
Replies: 19
Views: 1278

Re: Imaging Source DMK21

Not tried it, however have heard a few people say it's more sensitive in Ha so they get shorter exposure times... You could get shorter exposure times by just removing an ER... (sorry, i'll stop it!)...
by marktownley
Wed Jan 25, 2012 5:19 pm
Forum: This is SolarChat !!
Topic: Solar processing challenge
Replies: 17
Views: 1224

Re: Solar processing challenge

[quote] In avistack you can select 'minimum area' in the frame stacking stage and it remove this artefact. Thanks for the tip! I need more of these stacking process tips for sure! Avistack in this situation only stacks the areas that occur in all frames that are being stacked, so your final image m...
by marktownley
Wed Jan 25, 2012 5:14 pm
Forum: This is SolarChat !!
Topic: Another usefull Photoshop Technique to try...
Replies: 34
Views: 1846

Re: Another usefull Photoshop Technique to try...

Hi Merlin,
I typically have an exposure of around (can't remember exactly) 1/60-70 for SS and when I double stack the PST I go down to 1/25 or 1/19 or thereabouts for surface detail.

Regards
Alexandra

What f-ratio is this at Alexandra?
by marktownley
Wed Jan 25, 2012 5:13 pm
Forum: This is SolarChat !!
Topic: Another usefull Photoshop Technique to try...
Replies: 34
Views: 1846

Re: Another usefull Photoshop Technique to try...

Mark, at this stage I'm not prepared to dismantle one of the SM60... I was wondering though...could it be my exposures are so affected by the tuning I apply between the double stack filters? I really do spend a lot of time setting each filter and then working them together to get the "best" narrowb...
by marktownley
Wed Jan 25, 2012 7:18 am
Forum: This is SolarChat !!
Topic: Solar processing challenge
Replies: 17
Views: 1224

Re: Solar processing challenge

Yeah, completely agree with Walter - when you look at the orginal and look at the outcome it is very surprising! I should have a bit of time this evening to have a play with this and see what I can get - I did try briefly late last night, though my mind was more geared towards sleeping at that point...
by marktownley
Wed Jan 25, 2012 7:13 am
Forum: This is SolarChat !!
Topic: Jan 24, 2012--Full Disks
Replies: 8
Views: 487

Re: Jan 24, 2012--Full Disks

They're beauties Jim! Like then alot! :)
by marktownley
Tue Jan 24, 2012 10:06 pm
Forum: This is SolarChat !!
Topic: Another usefull Photoshop Technique to try...
Replies: 34
Views: 1846

Re: Another usefull Photoshop Technique to try...

Lose an ERF on the inner etalon, I reckon you'll get your prom exposures upto more like 1/27s ;)
by marktownley
Tue Jan 24, 2012 9:06 pm
Forum: This is SolarChat !!
Topic: Smart Sharpen and Unsharp Mask
Replies: 32
Views: 1693

Re: Smart Sharpen and Unsharp Mask

Well, it's taken me nearly a week of tweaking and twiddling but i can confidently say that with the raw data I get out of avistack, using the smart sharpen method I am getting reults that is equally comparable to that that I get from Registax. I am hoping with a bit more perseverence on this I might...
by marktownley
Tue Jan 24, 2012 8:36 pm
Forum: This is SolarChat !!
Topic: Full Disc White light 23/01/12 + Data
Replies: 6
Views: 510

Re: Full Disc White light 23/01/12 + Data

Brilliant images again Richard!