I hear Williams Optics makes a suberb refractor of short focal length and it is sold, I think, by Anacortes. glenn shaw ----- Original Message ----- From: Matt BenDaniel Sent: Wednesday, March 27, 2002 11:04 AM To: astro-photo@seds.org Subject: Re: [APML] Medium format wide field scopes At 08:40 AM 3/27/2002 -0800, Mike Connors wrote:
>Hi all,
>
>I'm thinking about scopes for wider fields and shorter exposures than my current setup (6"f9 refractor, max. field: 2.5x2.9 degrees/Pentax67). If it was available for less than 50% over new price, the choice would be obvious (to me, that is): the A-P Traveler.
I'm sure you can find a Traveler for lower than that.
>Since they are not available, it seems that the leading candidates are the Tak FSQ-106 and the TMB 105/650. I seem to recall that the Tak had an objectionable 'hot spot' ? The TMB requires a field flattener from the shots that I've seen. Anybody out there have any film shots or links to same for either of these scopes using medium format?
>Also, if there are any other opinions regarding suitable scopes in the, say 500-800mm f.l. range, with focal ratios 5 to 7, I'd appreciate hearing about them, especially if there are medium format images that have been taken with them.
Don't forget to check out the Borgs. http://www.hutech.com
--
Matt BenDaniel
matt@starmatt.com
http://starmatt.com
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