A new objective cell, or advice, or something

[tombardier]

Hi. 

I just did something very silly.  I noticed a tiny amount of fungus at the edge of my TS Optics f/7 ED doublet today, at the end of a solar observation session.  Well I decided I would try fixing that will my ultrasonic cleaner.  I think the cleaner did an ok job, but I made the fatal mistake of rinsing my warm lens with cold distilled water, and the picture speaks for itself...

So; I'm not soliciting any comments on what a stupid, idiotic thing I've done; I realise it.  I still have a nice telescope assembly, and a lens cell.  I'd very much appreciate ideas on how I can rescue this or turn it into something useful. I've only ever used it for solar work, with monochromatic Ha, so perhaps I can replace it with an achromatic lens cell.  Who knows.. hopefully any prospective commentators have ideas on how to turn this mini disaster around!

Thank you in advance

 

[pipnina]

First of all, my condolences! Rest assured you aren't the only one who did something stupid today... I will be making an "oops" post myself tomorrow.

It's possible you could buy a replacement optic from TS themselves, as they have a selection of telescope-building supplies including lenses:

https://www.teleskop-express.de/en/telescope-accessories-5/telescope-diy-improvement-299/telescope-making-optical-parts-91

Maybe there's even a triplet that fits your telescope OTA? Who knows.