Star Optics up on the Gold Coast stock them too, it where I source mine from

http://www.staroptics.com.au/

Beren,

Al Nagler out sourced the grinding of the glass sometime back he then tests them to see if they reach a certain level, I wonder if that level is compromised from his original level of perfection. Pentax has been in the business for quite a few years more. Alot of high definition TV is shot through Pentax lenses, when I was working on movie sets you would see them being used. Their coating are world famous, same coatings on their ep's I believe SMC. I've had the chance now to look through a few TV's the only one that has impressed me is the 20mm t5 Houghy has.

All I'm suggesting is before you go out and buy what you read or hear about as being the best try a couple of others, Dont get me wrong I'm not putting down TV's but the say the are the only top of the line ep is not true and you would be a fool to say it. Actually when I hear people expressing that I donr ever believe what they have to say again. The proof is in the pudding. besides the warm fuzzy feeling Naglers give you they have a slightly wider FOV. I think the Pentax XW have an overall better design and are slighty better optical, comfortability, and construction, designed to be weather proof.

regards,CS