Re: C9.25 OTA on an EZ Touch
- Hi Dave,
I have the original EZTouch with WO Tripod and have been using it as
follows and am happy with it.
On the Vixen side, the WO M80FD with 2" extension, 2" WO Dielectric
diagonal, and UWANs and other eyepieces. Also mounted on the 80FD is
the 50mm Stellarvue RACI finderscope.
On the other side, the WO Combo Plate, with an older C8 OTA, 2" WO
Dielectric Diagonal, various eyepieces including the WO Zoom II
eyepiece which is quite heavy.
Either scope on one side only is still fine, but it does seem really
well balanced with both on at the same time, and very smooth with this
much weight on it. Damping times are OK, a couple of seconds on my
wood deck, but tracking at high powers with the SCT takes a bit of
skill. I have some old neoprene foam mousepads that I cut up to put
under the tripod feet that help. I would suspect that the real
Vibration Suppression Pads would work even better, but I am too cheap
to buy them ;-)
I would suggest trying it first without a counterweight. I have seen
two options for counterweights, one for each side, and both seemed
viable. If you need more info on counterweights, let us all know,
since I know that others in the group and on various other groups have
tried different things that all seemed to work.
P.S. If you have the money to spend at some point, I would recommend
a WO 2" Dielectric diagonal - the one I have is the newer one that
included both the 2" refractor nose piece, and the threaded SCT piece.
They are interchangeable and it works extremely well. I haven't
written a review on the WO Zoom II eyepiece yet, but I bought it with
the idea of being able to zoom in and out in the C8 on the EZTouch,
and it works quite well. It's not cheap, but it is pretty much the
only eyepiece I now use in the C8, and I would recommend it as well.
Again more money, but these are both things you can always add down
the road if you want.
--- In William-Optics@yahoogroups.com, daveabrey <no_reply@...> wrote:
> Hi all :).
> According to the specs, the EZ Touch can support a weight of 10kg on
one side, so it should
> be able to cope with a C9.25 OTA at 9kg (I'm using the standard
diagonal and plossl EPs, so
> the extra weight should still be under 10kg). Would it be a good
idea to use some
> counterweights with this, and if so, how much/how far out from the
mount would be best to
Thanks for the reply :).
Sometimes, I wish I'd have got the 8" instead of the 9.25", as it's so much lighter, and
would remove many of the mounting issues ;). Although I have spoken with someone that
uses the EZT/C9.25 combo with some counterweights, I'd love to get some more feedback
before actually buying the mount. So, if anyone reading this has more info to add, please
chip in :).
I actually already have the WO 2" diagonal, but hadn't been using it. The reason is that I
didn't get on with the fact that to rotate it, you need to loosen the threaded collar, and
with cold fingers, that can be a bit awkward. I I had been using it via a Feathertouch
crayford focuser, as that allows rotating the diagonal by loosening thumb screws.
However, with it mounted on an alt-az mount, that shouldn't be an issue. In fact, I'd
actually been using it incorrectly when using the SCT collar - I'd screwed it in to the end
of the refractor nose piece, and subsequently had bit of trouble removing it! Suffice to
say, I have now removed the refractor nosepiece :).