The 68mm William Optics FF was designed by TMB for the FLT-110
triplet TMB lens. It is a "compromise" for the FLT-132, but still
works very well.
We do not know anyone who reported usage of our TMB ff with non-WO
scopes, but there was at least one customer who tried it (I do not
remember the scope though, but it was a TMB).
--- In firstname.lastname@example.org
, "Rich Wood" <astronut1001@...>
> As I recall the WO FF is sold for both their 110 and 132 scopes.
> Per Yuri at TEC an ideal FF is designed for a specific scope design
> and focal length. This would mean, I suspect, that the WO unit is
> compromise for one scope or the other, just like the TV ones.
> I know TEC 140 owners have used various flattener/reducer units
> other than TEC as all of TEC's units are FF only with no focal
> Rich Wood
> --- In email@example.com, "Terry Tuggle" <tlt284@> wrote:
> > Hunter,
> > I am not sure about the WO flattener; the reason is the back
> > shaped adapter. If there is not a baffle at the front of this
> cone, it will
> > have light reflection problems. With the light coming in from the
> > aperture; it will hit the angled cone and reflect into the light
> > causing reflections.
> > Any adapter you get for what ever choice you make, you must
> make sure
> > there is no reflected light because of the reduction. A baffle
> will reflect
> > the back towards the source; a cone with reflect into the light
> > Hutech makes a .85 reducer for there scopes for DSLR's you may
> want to
> > consider also:
> > http://www.hutech.com/redtelecon.htm
> > HTH,
> > Terry
> > http://www.geocities.com/tlt284@/terryshuntofthemonth/index.htm
> > _____
> > From: firstname.lastname@example.org
> [mailto:email@example.com] On
> > Behalf Of hewholooks
> > Sent: Thursday, September 27, 2007 1:15 PM
> > To: firstname.lastname@example.org
> > Subject: [tmboptical] Re: Field Flattener for APM/TMB 130mm f/6
> > Don't mean to reply to my own post, but have read a couple more
> bits of
> > info and would like to throw out some more info.
> > Here's another couple possibilities to mull over:
> > Would this be a proper fit with the right connedting hardware?
> > http://www.williamo
> > ptics.com/accessories/TMBflattener_features.htm
> > Also, what about the Astrophysics version (67PF56) with an
> > would convert the feathertouch 3.5" focuser to a 2.7"?
> > Again, if it must be the APM dedicated flattener, then fine, but
> > one is it and how exactly does one acquire one?
> > Thanks again,
> > Hunter
> > --- In tmboptical@yahoogro <mailto:tmboptical%40yahoogroups.com>
> > "joe.breault" <joebreault@> wrote:
> > >
> > > Hunter,
> > > I don't know the answer but am interested in the identical
> > > for the APM 152/1200 I'm expecting in a few weeks and my Canon
> > > (rebel XT). SO if I can expand your question to this similar
> > > would love to hear people's comments.
> > > Joe
> > >
> > [Non-text portions of this message have been removed]