William Optics GT102 sanity check

[Alchemy (Clive)]

Originally Posted by PRejto

Clive,

You seem to be speaking both about visual and photographic. The issue I see is not visual at all as our eyes don't perceive blue below a certain freq. (ca 435??). But a sensitive CCD like the Sony in particular will see way down (380 and below). So, you don't say which camera you use on your FLT 132 and that will make a huge difference. Whilst the KAF8300 might show very good blue filter images the Sony 694/674 may very well not. One would really need to see the corrected specs of the scope to know for sure.

Peter

I don't do visual, just imaging ( personal use only), again I'm happy with the scope.
Qhy9 uses the 8300 chip ( mono) previously used a qhy8 which had a 6 meg chip color.
As you say you can find a chart showing the focus of colors, I know I've looked at the one for my 132, a comparison between the two could be usefull .....and from experience I can definitely confirm Ha doesn't focus amongst the pack.

[Camelopardalis (Dunk)]

Originally Posted by LewisM

Indeed they are excellent Rob, but if I am reading it correctly, Lee already has his W.O and using it.

The Esprits are a mixed bag - either superb or poor. Most of the isues stem from the rubber O-ring they use in the objective which can interfere in the light bath giving diffraction spikes. Also, collimation seems very sensitive with them too. There is a dealer in Europe who completely rebuilds the Esprit objective cell compnonents to eliminate these issues.

If I was to think about your rate of turnover with Taks most people here would forgive me for believing there was something wrong with each of them