Used TeleVue Genesis and Genesis SDFs come up somewhat regularly going for
around $1200 to $1400 for the non-SDF version and about $300 more for the
SDF version. Assuming you sold your Pronto, you'd be out between $500 and
$800 for a significant jump in aperture and color correction without much
loss in terms of field of view. Just a thought ...

wrote in message
...
On 6 Aug 2003 08:33:34 -0700, (Chris Greene)
wrote:

OK, I have a Pronto which I've truly enjoyed owning and using.
Recently I was all set to buy a TV85 when I was told by Dave Nagler I
wouldn't see that much of a performance pop between it and my Pronto
and would want a 4" to get a good step up. However, the Tak guy at TNI
said the 20mm boost of the Sky90 would be quite noticeable.

I had the TV85 and will say it's miles ahead of the Pronto simply
because of it's lack of colour error. But, If I were doing it again,
I'd get the TV76 simply for portability reasons. These scopes are
all "second scopes" anyway, most users will likely have a larger
main scope.
-Rich