⚠️ ⚠️ Chroma 1.25” filter cell thermal fracture

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
User avatar
MalVeauX
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1858
Joined: Tue May 09, 2017 7:58 pm
Location: Florida
Has thanked: 1171 times
Been thanked: 1360 times

Re: ⚠️ ⚠️ Chroma 1.25” filter cell thermal fracture

Post by MalVeauX »

Sorry to hear about that, that sucks...

Was this with an ERF in front of it?

Very best,


User avatar
krakatoa1883
Almost There...
Almost There...
Posts: 1041
Joined: Sat Jun 11, 2016 9:41 am
Location: Mediolanum
Has thanked: 153 times
Been thanked: 496 times

Re: ⚠️ ⚠️ Chroma 1.25” filter cell thermal fracture

Post by krakatoa1883 »

Sorry to know this, Apollo. Yes, most probably it's the same that occurred to my red filter.


Raf
My solar images and reports with articles on solar equipment
User avatar
marktownley
Librarian
Librarian
Posts: 42270
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20424 times
Been thanked: 10243 times
Contact:

Re: ⚠️ ⚠️ Chroma 1.25” filter cell thermal fracture

Post by marktownley »

Ouch!


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!
christian viladrich
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 2150
Joined: Sun Jun 14, 2015 4:46 pm
Location: France
Has thanked: 1 time
Been thanked: 2713 times
Contact:

Re: ⚠️ ⚠️ Chroma 1.25” filter cell thermal fracture

Post by christian viladrich »

What were the indoor and outdoor temperatures ?


Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
User avatar
MalVeauX
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1858
Joined: Tue May 09, 2017 7:58 pm
Location: Florida
Has thanked: 1171 times
Been thanked: 1360 times

Re: ⚠️ ⚠️ Chroma 1.25” filter cell thermal fracture

Post by MalVeauX »

Ahh, I understand now, still, you'd think any filter made for solar use would be fit in a loose fashion for filter cell holding.

Very best,


User avatar
Bob Yoesle
Almost There...
Almost There...
Posts: 994
Joined: Thu Mar 08, 2012 7:24 pm
Has thanked: 540 times
Been thanked: 807 times

Re: ⚠️ ⚠️ Chroma 1.25” filter cell thermal fracture

Post by Bob Yoesle »

Thanks for the heads up Apollo.

I checked my filter and it uses a plastic retaining ring. I loosened it up when I got it and there is a slight rattle to it when gently shaken, so hopefully I'll have no issues. It is a hard coated filter on a fused silica substrate so it should be quite stable thermally, so any expansion/contraction issues would have to be the cell's.


Diagonally parked in a parallel universe.

Curiosity is the father of knowledge; uncertainty is the mother of wisdom.

Dark-Sky Defenders
Goldendale Observatory
Post Reply