Orion Express 80mm Refractor OTA

[asimov]

Hi guys.

Can anyone comment on this scope?

This is just a shorter FL version of the orion ED80 isn't it?

How do you rate the express up against the ED80 ?

https://www.bintelshop.com.au/welcome.htm

[davidpretorius]

i can comment, but it will be silly, so i won't!

would this be a guide scope for your big blue?

[atalas]

I doubt It mate ! this shorty is not an apo , gee looks just like a williams optics scope ah !
You know when you can get an ED80 for the same price which is an apo,why would you bother with an acro ? still everybody to there own I guess.

Louie :innocent:

[asimov]

Eh?? I thought it stated it was an APO! I better go re-read the add!

[asimov]

Ok..it says SEMI-APO...Please can someone define 'semi-apo??'

[atalas]

Thats easy ! an achromatic doublet in a fancy OTA :lol:

Louie :D

[asimov]

After reading a few reviews on it....even the owners are confused! :rofl: I'm not really in the position to buy another scope anyway...I was just wondering.

Can't learn if you don't ask hey!? :thumbsup:

C'mon Dave? throw your SILLY comment in here mate! All STUPID comments R welcome!! :D

[mickoking]

When I was doing my Photographic course in the RAAF achromatic was defined as a lens that corrects(focuses) light in two wavelengths. Apochromatic lens corrected (focuses) light in 3 wavelengths. I believe semi apo is simply an achromat that uses ED glass.

By the way my next scope will be an Orion APO to replace my 80mm konus short tube (which I will donate to my daughters primary school).:D

[asimov]

Ta Micko...When are you coming back from China...enjoying ur time there?

[mickoking]

Asimov mate,

Having a great time but I am missing my wife n Kid. I will be back on the 9th of october.

[h0ughy]

Asimov, look here http://www.iceinspace.com.au/forum/showthread.php?p=66792#post66792

I just bought one

[Starkler]

You get a better quality of build and a prettier scope. The ed80 although it comes with a crayford, its still a typical Synta product in that regard.