PST Etalon Adjustment PIN

Frankenscope? Let's see it!***be advised that NOTHING in this forum has been safety tested and you are reading and using these posts at your own peril. blah, blah, blah... dont mess around with your eyesight when it comes to solar astronomy. Use appropriate filtration at all times...
Post Reply
Solar B
Ohhhhhh My!
Ohhhhhh My!
Posts: 185
Joined: Mon Jul 27, 2015 9:29 am
Location: Dunfermline , Scotland
Has thanked: 22 times
Been thanked: 11 times

PST Etalon Adjustment PIN

Post by Solar B » Tue Jun 09, 2020 6:54 pm

Ah don’t know what I’ve done here !

But it’s one of those I wish I’d left alone !

I took of the rubber grip to expose the small

screw and loosened it ... now the tilt will go

a long way and won’t stop plus I can’t seem

to be able to relocate the small screw into

any location where it will take hold.

Brian
Attachments
E671B940-0012-4397-AD5C-069BDD11F2BF.jpeg
E671B940-0012-4397-AD5C-069BDD11F2BF.jpeg (1.71 MiB) Viewed 310 times
AF16CFA8-0F16-45D4-BF34-513348F2C88D.jpeg
AF16CFA8-0F16-45D4-BF34-513348F2C88D.jpeg (1.41 MiB) Viewed 310 times
917595B8-4C81-41A1-AD22-08A6AABF351E.jpeg
917595B8-4C81-41A1-AD22-08A6AABF351E.jpeg (1.31 MiB) Viewed 312 times


" Gentlemen only ever use Refractors "

Solar B
Ohhhhhh My!
Ohhhhhh My!
Posts: 185
Joined: Mon Jul 27, 2015 9:29 am
Location: Dunfermline , Scotland
Has thanked: 22 times
Been thanked: 11 times

Re: PST Etalon Adjustment PIN

Post by Solar B » Tue Jun 09, 2020 11:21 pm

It's ok I'm a wassock as I hadn't pulled the plate forward 🙄

Brian


" Gentlemen only ever use Refractors "

User avatar
Rusted
Im an EXPERT!
Im an EXPERT!
Posts: 433
Joined: Fri Jan 19, 2018 11:00 am
Has thanked: 762 times
Been thanked: 211 times
Contact:

Re: PST Etalon Adjustment PIN

Post by Rusted » Thu Jun 11, 2020 7:59 am

I leave my PST etalon open. No shell nor ribbed rubber band. I use a watchmaker's screwdriver in one of the [screw] drive holes.
Then I can both tune and tilt the etalon ring gently sideways for the most even brightness and surface clarity across the field.
It is probably a bit silly because dust can get inside onto the etalon's outer surface. Though I could use my bulb, dust blower for that.


http://fullerscopes.blogspot.dk/

Baader 160mm D-ERF, iStar 150/10 H-alpha, Baader 35nm H-a, Beloptik KG3, PST etalon, Lunt B1200S2, ZWO ASI174.

Starry Jack
Almost There...
Almost There...
Posts: 593
Joined: Tue Feb 03, 2015 3:44 pm
Has thanked: 59 times
Been thanked: 76 times

Re: PST Etalon Adjustment PIN

Post by Starry Jack » Thu Jun 11, 2020 7:48 pm

Rusted,
I do the same thing except I put electrical tape over the holes that do not have the screwdriver in them.


Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation

User avatar
Rusted
Im an EXPERT!
Im an EXPERT!
Posts: 433
Joined: Fri Jan 19, 2018 11:00 am
Has thanked: 762 times
Been thanked: 211 times
Contact:

Re: PST Etalon Adjustment PIN

Post by Rusted » Sat Jun 13, 2020 9:32 am

Starry Jack wrote:
Thu Jun 11, 2020 7:48 pm
Rusted,
I do the same thing except I put electrical tape over the holes that do not have the screwdriver in them.
Is this just to avoid tuning off band?

Or is there some other reason?


http://fullerscopes.blogspot.dk/

Baader 160mm D-ERF, iStar 150/10 H-alpha, Baader 35nm H-a, Beloptik KG3, PST etalon, Lunt B1200S2, ZWO ASI174.

User avatar
marktownley
Librarian
Librarian
Posts: 28783
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 1614 times
Been thanked: 634 times
Contact:

Re: PST Etalon Adjustment PIN

Post by marktownley » Sat Jun 13, 2020 8:48 pm

Did you sort this Brian?


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

Starry Jack
Almost There...
Almost There...
Posts: 593
Joined: Tue Feb 03, 2015 3:44 pm
Has thanked: 59 times
Been thanked: 76 times

Re: PST Etalon Adjustment PIN

Post by Starry Jack » Sat Jun 13, 2020 11:43 pm

The electrical tape is simply to keep dust out of the holes. I meant I do the same thing with no rubber ring and using a small screwdriver as the long lost screw.


Explore Scientific 152mm f6.5 achromat
Aeries D-ERF
Quark Chromosphere f27 native, (f14 when focal reduced)
Mallincam .5x focal reducer (large format)
ZWO174 (IMX249 chip 5um)
Huge Sense of Adventure Viewing Creation

Post Reply