"damaged" hydrogen alpha solar filter - and it still works perfect!

So I have a damaged lunt solar systems ls50c hydrogen alpha etalon,   there is a decent sized fracture on one of the glass plates.

It still works perfectly!  No affect on the image whatso ever.  How cool is that!?




Here is a timelapse recorded today-  10-28-2022

today i used the 50mm blocking filter to open up the aperture and then cranked up the magnification factor with a large aperture barlow to try finding the fracture in the etalon-

Here it is!   Its actually not too ugly bad considering how sensitive etalons are- i am shocked it still functions this good in fact.