36802RE: [tmboptical] Re: Field flattener for TMB 92 SS?
- Oct 12, 2010Dodi,
It has been a long time since you posted. I am glad to hear the news
about the TS 2.5 and the TMB92 SS. I have seen many post on other groups
about finding a FF that will work with this scope.
Please keep us informed. You mentioned you shifted it 20mm away; what is the
total FF/chip distance?
All the best,
From: firstname.lastname@example.org [mailto:email@example.com] On
Behalf Of digidodi
Sent: Tuesday, October 12, 2010 12:20 PM
Subject: [tmboptical] Re: Field flattener for TMB 92 SS?
Answering my own question... Issue solved. Due to the much shorter f-value
versus the other refractor I had to shift the camera 20mm away from the
flattener. Now (at least on a brick wall), the combination works *much*
--- In firstname.lastname@example.org <mailto:tmboptical%40yahoogroups.com> ,
"digidodi" <ddierick@...> wrote:
>became an amateur-amateur with little time to do astronomy. Tonight was an
> Has been a very long time since I posted something, but due to work I
>to couple a Teleskop Service (Germany) 2.5" field flattener that I had
> Anyone has had success with 35mm format on the TMB 92SS? I tried tonight
sitting on a shelf to a TMB 92SS and use a Canon 5DmkII, but the results
were not up to standard. Perhaps only 50% of the field of view is really
good. With my EOS 1DmkIV (crop 1.3) that goes up to 80% or so, but still not
>apo with stars nearly pinpoints to the edge of the 24x36mm field.
> The same flattener works like a charm for the 5D on a 90mm f6.7 triplet
>about the photographic performance with the flattener. But perhaps better
> I tested the 92mm TMB also visually. Really nice scope indeed. Too bad
exist? Any suggestions?
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