Orthoscopics - where to buy ? - Page 2

Starkler (Geoff) · #21 09-02-2005, 12:47 PM

Ok then Mike and Ving.

I'll be responsible for writing a review if you'll be responsible for keeping the clouds away Saturday night

iceman (Mike) · #22 09-02-2005, 01:01 PM

heh I don't want them up here either.. taking my son to Koolang Observatory on Saturday night, and hitting the dark skies with Rodstar on Friday night!

ving (David) · #23 09-02-2005, 01:05 PM

I'll do what i can... (nothing)

Starkler (Geoff) · #24 13-02-2005, 02:32 PM

Quote:

Originally posted by ving
want a full review please and comparision with a plossl

Very little light scatter compared to my pentax xl/ barlow combo, and WAY less than a nagler type 6.

Yet to make a full judgement on sharpness. Dave seemed to think my pentax xl/ultima barlow combo beat it in this regard.
The seeing was good one moment and mush the next, so im not 100% sure on this aspect.

Sorry I didnt have a comparable plossl on hand to compare with.

iceman (Mike) · #25 13-02-2005, 02:55 PM

You call that a review? I can't post that in the reviews page! More Mr Geoff please, more!

Starkler (Geoff) · #26 13-02-2005, 03:02 PM

Mike you didn't keep your end of the bargain

(see above)

iceman (Mike) · #27 13-02-2005, 03:04 PM

You wouldn't have dragged out those 14" and 18"ers if there was clouds! I'll give you another week to try it out, then I want a full review!

ving (David) · #28 14-02-2005, 10:57 AM

then we send around the heavies!

ving (David) · #29 16-02-2005, 04:08 PM

i've decided to get an ortho too... for planets and splitting doubles

where did you get yours starkler?

Starkler (Geoff) · #30 16-02-2005, 04:16 PM

I got mine from Astromart second hand.

You can buy UO orthos from frontier optics in Aus.
I was quoted $99 + $7 to ship for the standard 'volcano top' type.

DougAdams · #31 16-02-2005, 04:19 PM

I ordered a 5mm HD from Frontier Optics. Daniel told me it will ship in the next day or two. They are $125 plus $7 P/H.

ving (David) · #32 16-02-2005, 04:26 PM

sweet! I'll prolly get one soon.

what focal length would you recomend as a start?

DougAdams · #33 16-02-2005, 04:29 PM

I don't know - what scope(s) have you got? It's going to get me to 180x with my refractor, and 244x with my Dob. I have no idea how practical these magnifications are going to be, but I'm curious

ving (David) · #34 16-02-2005, 04:52 PM

I have a 8" gs dob...

i was thinking about 7mm which would give me about 171x and double that barlowed. wadayathink?

Starkler (Geoff) · #35 16-02-2005, 06:48 PM

Ving I doubt you would ever get to usefully barlow that 7mm.

One thing to remember is that the fov on these eyepieces is smaller than a plossl and very high powers will make it harder to track.

If you get good seeing conditions often you could go shorter than a 7mm . I got the 7 as Melbourne seeing is lousy.

Doug, 188x should be a good planetary mag in your refractor, and usable in the dobbie if you like getting up before dawn to observe

ving (David) · #36 17-02-2005, 10:39 AM

well yeah... I wasnt going to hunt DSOs with it. I dont need a big FOV to split doubles and view planets.

I am in sydney so my seeing is prolly at the most on par with you

trufflehunter (Wayne Robinson) · #37 03-03-2005, 12:15 AM

Yeah what Ving and Ice said! Geoff, is it one of those 'volcano tops'? I've always thought that was a good design to help overcome the short eye-relief problem, but I worry about it stabbing me in the eye!
Seriously, though... I've been considering a 7mm ortho. I like the idea of the new UO "Planetary" ortho series but they bottom out at 9mm. They're on the University Optics site.