Large Ortho style Eyepieces

[barbusg60]

I like collecting & using Orthoscopic eyepieces in the smaller sizes but am wondering what options I have in the larger sizes like 25mm and 32mm?

I know you can get a 25mm Ortho but are there any other options out there?

i am using a Meade 4000 at the moiment but like the compactness and build quality of the older japanese stuff.

Thanks as always,

Rob.

[nightfisher]

I recently bought the 25mm circleT kokusai ortho from lyra optics, it is a really sweet ep, i have heard a rumour of a 40mm ortho, but dont know who made it

[HD-AP]

I like collecting & using Orthoscopic eyepieces in the smaller sizes but am wondering what options I have in the larger sizes like 25mm and 32mm?

I know you can get a 25mm Ortho but are there any other options out there?

i am using a Meade 4000 at the moiment but like the compactness and build quality of the older japanese stuff.

Thanks as always,

Rob.

I have a circle T 40 mm ortho these can be found second hand usually fullerscopes branded

[Jaimo]

I have a 28mm Meade Research Grade Abbe Ortho that is a very fine eyepiece, but I find myself at the lower magnifications always going to wider field eyepieces.

Jaimo!

[Astro_Baby]

Its not an ortho but gets good reviews for its ortho like quality....check out the Edmund RKEs. I am pondering on getting some myself. I think UO also did a 40mm ortho as well. Try som of the US second hand sites.

[Astro_Baby]

Ps I like the 25mm Cir.T as well, its rather good in my Mak.

[AndyH]

If you like the old Japanese stuff here are some resources to help your search.

http://web.archive.o...125inch.htm#125

http://web.archive.o...tm#Super Erfies

The above are U.O. branded, but a few companies had similar lines over the years.

http://www.kkohki.com/English/kkohkiparts.html

Meade did a stonking line of Jap glassed goodies - http://stargazerslou...-meade-goodies/

Over the years I've used the full line of orthos, kellners and many of the konigs, erfles, wide plossls & big 2" offerings.

Not only lovely pieces of craftmanship, but they worked superbly on my mostly slower scopes.

Andy.

[estwing]

i've got a 4mm telescope house ortho..not brillant but not bad for those rare nights..

[michael.h.f.wilkinson]

The 25mm Circle T I used to have was the only Ortho I got along with. It was my favourite EP in my 6" F/8 Newtonian. Very sharp and ideal eye relief for me

[AndyH]

There is an unbranded 20mm erfle (as on the KK site) for sale along with a volcano shaped ortho, for sale as a package with an old UK made Dobsonian, on fleabay just now.