Quote:
Originally Posted by Suzy
Hi Renato, I'm really enjoying your input experience in this thread. It's also interesting what you said about the dew caps on the Telrad (I had one with a cap) and I always thought it was because I didn't put the cap on quick enough that it dewed up so much. Now I know I'm not crazy!  I got rid of it, I spent more time looking at dew drops . |
Hi Suzy,
Yes, I was extremely disappointed with my flip Telrad dew caps when I got them - though I have seen other longer ones sliding over the whole top of the unit since, which I suspect would do a better job, though they'd be trickier to clean with a tissue when they finally did dew over.
Sticking aluminium foil over the Telrad and dew cap definitely improved things - and that also works on the finderscope dew caps I fashioned from plastic.
A lot also depends on where you live. The aluminium foil trick certainly worked where I used to live in suburbia and at my rural dark site. But since moving to my current location near the bay and next to a gully with a small creek running through it, it still works, but not as well as it used to.
Attached is a picture of one of my Telrads with the aluminium foil stuck on it with Blutack, which in turn was my attempt to copy the picture that was in US S&T years ago.
Cheers,
Renato