Hello Steve, I got the 200mm version a couple of weeks ago. From my limited
experience with it (weather induced!) I'd say that the haze is more likely
to be condensation / dew on the eyepiece? Warm mirrors tend to cause tube
currents that induce shimmering unstable images rather than haze, as far as
I know.

Does yours have handles sticking out of the side (where the altitude
bearings are)? I use these to carry mine in and out, though I must admit the
8-inch is heavy enough for me ....... do you carry yours in one piece? If
not, you could always re-insert the handles after takine the tube off the
base .........

I chose the one with the pyrex mirror because I had read about cooling etc,
and can observe almost instantly with it .....it is kept in the garage
however so the temperature difference is not as high as if it were kept in
the house.

I am also thinking about new eyepieces ......... wondering about taking
advantage of the 2 inch focusser with a nice wide-angle and maybe getting
something in the region of 8mm for higher power; I've not found the barlow
that useful so far.

Cheers

Alan

"Steve" wrote in message
...
I am now the proud owner of a new Skywatcher 250 10" dob and I am very
pleased with it, but I would appreciate some advise on the following
questions.

1 - How important is it to let your telescope cool down?. I was looking at
Jupiter and 4 of her moons last night and they all had a slight haze
around
them. The telescope had been outside for about 10 - 15 minutes, is this
long
enough?

2 - I don't mind lugging the telescope and stand in and out of the back
garden, but I am frightened of dropping it or squeezing the tube too much
and damaging it. Is there any kind of handle or harness available to carry
it correctly?

3 - What extra eyepieces would anyone recommend getting next?

Thanks in advance

Steve