Search found 3517 matches

by Valery
Mon May 12, 2014 9:08 pm
Forum: This is SolarChat !!
Topic: Second light PST CaK and Ha in 150mm at a decent seeing.
Replies: 20
Views: 322

Re: Second light PST CaK and Ha in 150mm at a decent seeing

Absolutely excellent results there Valery! The more I see from the Ha system the more I like it. Do you use the stock focuser on the 150mm scope? Thanks, Mark. Yes, this photo was created using the stock (junk!) Synta/SW focuser - with intention to show that even such cheap mod can be very useful. ...
by Valery
Mon May 12, 2014 7:43 pm
Forum: This is SolarChat !!
Topic: Second light PST CaK and Ha in 150mm at a decent seeing.
Replies: 20
Views: 322

Second light PST CaK and Ha in 150mm at a decent seeing.

Today's sun in the CaK line.

PST CaK + PGR Flea 3 mono (ICX445). 300frames out of 1240.

Seeing was decent only by moments.

The picture in Ha was taken through 150mm F=750mm refractor with Aries Solar Kit and with the same camera.
200 frames out of 1200.

Thanks for looking.

Valery.
by Valery
Mon May 12, 2014 6:51 pm
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

CaK Colonel Mark Townley! Sir, allow me to report the results of investigation of the facility PST CaK!
The secret part of the object, namely, the filter CaK PSTmain, looks unharmed.
The campaign "PST CaK Modification-2" looks safe and easy. Losses are not expected. :^)

CaK Сaptain Valery.
by Valery
Mon May 12, 2014 6:41 am
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

Hi valery. I found that just getting as much distance between the 2 filters was the way forward, the ghost / reflection just became more diffuse and dimmer when I did this. If I tilted one of the filter elements (when they were located close together) it moved the ghost reflection, but the image wa...
by Valery
Mon May 12, 2014 3:23 am
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

I think in my module they're about 150mm apart. Hi Mark! Hope that below questions are the last ones and after the answers I will have in my head a completely clear picture of what to do with the CaK PST mod. 1. How have you get rid of the ghosts? Have you inclined both components (of this pair of ...
by Valery
Sun May 11, 2014 8:59 pm
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

Yes, the more distance between them the better. There is a limiting factor for the distance - a small diameter of these filters, a required unvignetted field (sun disk) and an F/ratio of the system. As slower the system, as larger the distance can be. There is a compromise. It is useful to make the...
by Valery
Sun May 11, 2014 5:37 pm
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

marktownley wrote:Hi Valery, all details including spacings can be seen in the image I posted in this thread.

http://solarchat.natca.net/viewtopic.php?f=9&t=11342

Mark
Thanks, Mark.

Have you get rid of the ghosts/reflections between the two CaK PST ?




Valery.
by Valery
Sun May 11, 2014 2:44 pm
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

Mark, Can you, please, tell the sequence and approximate spaces in your CaK double stack rig? And how can you get rid of reflections/ghosts in this rig? I asking because if all is OK with my main "yellowing" Cak PST element, I would by one more CaK PST to take one more such element for DS. If to hav...
by Valery
Sun May 11, 2014 2:19 pm
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

I'm also interested in Version 1 ;) if you mean by D-ERF the baader type, that will not work, Zero Transmission at 393 and 396 nm 1. I guess too, that absolutely most of solar imagers will be interested in full size ERF filter as this is the most safe solution and the life time as well. 2. D-ERF - ...
by Valery
Sun May 11, 2014 12:34 pm
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

Filter number 1, the yellow filter, will not rust, it is not a laminate filter with soft coating. Wooo hooo! Nice! This mean I can order the other components early next week! Thanks again, Mark! You definitely need to create a guide for all PST CaK mod-ders - this will save a lot of time and eyes.
by Valery
Sun May 11, 2014 11:35 am
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

Mark, Many many thanks for your so detailed and complete clarification. I will disassemble my PST CaK again and see if the yellowing main filter is OK and not rusted. If OK, I will immediately order the EO 494nm filter and may be also the EO 387nm. Then it will be easy to make the final step. Valery.
by Valery
Sun May 11, 2014 10:30 am
Forum: This is SolarChat !!
Topic: 11th May
Replies: 14
Views: 280

Re: 11th May

Bummer! When a large solar spot is faced to us again, there is NO WEATHER here!

So, I am green envy to see our friends imaging so nice photos like these! Thanks for sharing them with us.


Valery.
by Valery
Sun May 11, 2014 10:08 am
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

Seriously, get the yellowy CaK filter from the PST, use with a K-line / EO filter and a wedge without any ND filters, it will work and will be bright enough - trust me! Even if the maths seems to suggest it wont it will work. Here is a link written by Jen at daystar saying how a solar wedge won't w...
by Valery
Sun May 11, 2014 9:56 am
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

Hi Valery with a WO 110 f/6 i fried sucessfully a K-line and a Beloptik filter. You have to have something cutting the load up the train or better up front Hi Walter! Thanks for your info. I will use one of three solutions here: 1. Full size ERF (color glass made by local optical plant) 2. Full siz...
by Valery
Sun May 11, 2014 5:34 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Daystar QUARK - Operating temperature range
Replies: 3
Views: 1167

Re: Daystar QUARK - Operating temperature range

Hmmmm Just reading the manual for the new QUARK Ha system... The recommended ambient operating temperatures are 40 -100 deg F (5 - 38 deg C) May be an issue getting it "on band" on a typical Australian summer day.... :o :o You are not alone! A lot of sunny days here are below 5C !!! So, we will nee...
by Valery
Sun May 11, 2014 5:20 am
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

Hi Mark, Do you think this Edmund filter (hard coated) will be better choice than a Baader K-line filter? The reason I think so that it has 85% transmission at the CWL 394nm and it is hard coated - for a long life. It is $195 in 25mm size ( $120 in 12.5mm ) while the K-line Baader is $330 for the sa...
by Valery
Sat May 10, 2014 8:00 pm
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

Out of band blocking is one of the keys to getting a higher contrast image. I have tried BG25 and found it to be not very flat optically. Don't forget these shorter wavelengths are much more sensitive to wavefront error than the longer wavelengths. Best ERF I would recommend is a solar wedge withou...
by Valery
Sat May 10, 2014 6:16 pm
Forum: This is SolarChat !!
Topic: Calcium PST Sun 10th May
Replies: 17
Views: 258

Re: Calcium PST Sun 10th May

Great job, Alexandra! Very impressive and perfectly colored. Thanks for sharing it with us. BTW. How do you come to focus with the PST and camera. My PGR C-mount Flea 3 camera can't come to focus and I need to use a barlow lens between the camera and PST output eyepiece holder. Thanks, Valery.
by Valery
Fri May 09, 2014 12:07 pm
Forum: This is SolarChat !!
Topic: My first CaK pictures with PST CaK and Flea3 mono.
Replies: 13
Views: 213

Re: My first CaK pictures with PST CaK and Flea3 mono.

Montana wrote:I think the images look great, welcome to the PST club :hamster: :hamster: :hamster:

Alexandra
Thanks! However I noted now that the pictures here is much softer than the pictures I sent. May be the forum engine has compressed the files?
Never noticed this here before.
by Valery
Fri May 09, 2014 7:17 am
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

Re: My PST CaK mod. Help!

Good man Valery! :cool: Don't use the Omega stuff, in my experience there is so much variation in quality. In terms of blockers a Baader K-Line and / or a Baader U (venus filter) are what I consider to be the minimum. The quality is so much higher with the baader stuff. What did you have in mind fo...
by Valery
Fri May 09, 2014 6:32 am
Forum: This is SolarChat !!
Topic: My first CaK pictures with PST CaK and Flea3 mono.
Replies: 13
Views: 213

Re: My first CaK pictures with PST CaK and Flea3 mono.

Hi Valery, the 2 CaK psts I have modded both had rusting, I think I put a picture of this in one of walters caK threads in the mod section, at some point over the weekend I will find the other one from my box of bits as this was much worse. The filter train in the CaK PST is robbing of light. In si...
by Valery
Fri May 09, 2014 6:29 am
Forum: This is SolarChat !!
Topic: My first CaK pictures with PST CaK and Flea3 mono.
Replies: 13
Views: 213

Re: My first CaK pictures with PST CaK and Flea3 mono.

swisswalter wrote:Hi Valery

I guess you have a rust Problem. Our mods have a lot of light (very short exposure times)
I will take the picture and show it how does it looks. Then we can guess better.
by Valery
Fri May 09, 2014 6:26 am
Forum: This is SolarChat !!
Topic: My first CaK pictures with PST CaK and Flea3 mono.
Replies: 13
Views: 213

Re: My first CaK pictures with PST CaK and Flea3 mono.

Hi Valery, the 2 CaK psts I have modded both had rusting, I think I put a picture of this in one of walters caK threads in the mod section, at some point over the weekend I will find the other one from my box of bits as this was much worse. The filter train in the CaK PST is robbing of light. In si...
by Valery
Fri May 09, 2014 2:41 am
Forum: This is SolarChat !!
Topic: My first CaK pictures with PST CaK and Flea3 mono.
Replies: 13
Views: 213

Re: My first CaK pictures with PST CaK and Flea3 mono.

marktownley wrote:lots of astigmatism. Get that magic filter out of it and get it modded ;)
I am on the way! See below, Mark. And I am looking for your participation there. :)

http://solarchat.natca.net/viewtopic.php?f=9&t=11426
by Valery
Fri May 09, 2014 2:38 am
Forum: Solar Scope Modifications
Topic: My PST CaK mod.
Replies: 178
Views: 14472

My PST CaK mod.

Hi all, the modders! I recently bought a very little used PST CaK. Looks like new, unused. But I don't know it's real age. OK, I like to modify it as soon as possible. Is such an Omega filter will be sufficient to work as a blocker as a mate element to the main CaK filter of the PST? Do I need more ...