John

Seems crazy to me to let the colour of a scope get in the way of an absolutely superb option but there you go My ED120 is a wonderful refractor and compares well against my Tak and my TMB/LZOS 130 triplet which of course cost considerably more. Hope you find something the right colour soon

My shots (crops below) on the 6th July were with an unmodified DSLR, 200mm lens at F/5.6 ISO 800 1 second exposure. First time that I'd tried anything like that but it seemed to work. Rather a nervous process because the gap in the clouds was not going to last long and the comet faded quite fast as the dawn light started to come into the sky. Hope to get some more soon

That's my understanding about those as well.

The Baader zoom is quite a bulky eyepiece and while it has a 1.25" barrel option, some feel that it sits more securely in a 2 inch diagonal using it's 2 inch barrel option. It's still a 1.25" eyepiece optically of course.

With some clearer skies forecast over the next few days we should have some fund with this one

It is Russ

I usually put "Orion (USA)" in my posts to differentiate them from Orion Optics but I omitted that on this occasion. Sorry for any confusion caused. Orion Optics are great scopes at long as you buy them pre-owned

Made at the North Pole by Santa's elves during their "off" season, like all really good eyepieces

The early TAL 100 objectives had beautiful coatings The ED120 is pretty good as well though. It pretty much vanishes if you catch it at a certain angle.

Hi and welcome to the forum I'm just a bit SW of Bristol myself but a member of Bristol Astro Society.

The one I linked to says 1 ED and 2 Lanthanum. Obviously keeping the real design a secret to confuse the competition

I've owned Powermates, TeleXtenders etc in the past and they are very good. Now though I'm happy with the simple Baader 2.25x barlow. It works really well

Manufacture = China. I'm pretty sure of that Alan. Design, specs, QA - don't know.

Care to expand on that for the OP's sake John ?

If we are done here I can close the topic. It's been quite good up to now though

1 ED and 2 Lanthanum elements according to the Baader specs: https://www.baader-planetarium.com/en/downloads/dl/file/id/431/product/2855/morpheus_information_and_applications.pdf

Probably but I don't recall the results being any good ! I later realised that stacking a UHC and an O-III is pointless when I thought it through. What you end up with is an O-III filter with a lower peak pass %.

I don't think there is an Orion branded version of the Flextube in the 10 inch aperture. There is a solid tube version though, which is the same as the Skywatcher in terms of optics. Yes, I would buy one again and either the Flex or solid tube versions. I would want a light shroud for the Flextube version though. I would also consider the Bresser 10 inch dobsonian as well which is solid tube but has some nice features. More £'s though.

I'm sure someone who has used both will come along soon with specific answers. I've only owned the solid tube version. Optically, they are the same, I know that much. The Flextube version weighs slightly more. Not sure re: collimation frequency although it's something that should be checked and tweaked as needed each time a dob is used anyway. Like tuning a guitar before playing. Flextube is not a great name for a dob is it ?. I guess they were referring to the ability to reduce the tube length for storage / transport but still .....

If the skies are really dark you can hold a UHC or O-III in front of your eye and see the NA and a few other large Nebulae apparently. I've tried it but not with much success so far.

Out of production now but Takahashi used to do a 2.8mm and 4mm Hi-Or which might be that design ?:

Interesting thread on here a couple of years back illustrated the differences between how a barlow and a teleextender / focal extender / Powermate works:

I'm pretty sure they are manufactured in China. Along with many other excellent eyepieces

Amazing movie - thanks for posting it

I have both Ethos and the Delos eyepieces. The Delos was developed from the Ethos to offer longer eye relief, a lower price, the same optical performance and still a generous 72 degree field of view. I use the Ethos with my 12 inch dobsonian and the Delos more with my refractors. They are both superb eyepiece ranges. Pentax XW's are a lower cost but still excellent alternative to the Delos. I have some of those as well Some people do not like the 100 / 110 degree fields of view so the Delos are for them - they are very comfortable eyepieces. Naglers are an older design but still very good. There are a number of different Nagler types which cover 1.25 inch and 2 inch formats with focal lengths from 2.5mm to the huge 31mm Type 5 Nagler. There are other ranges from ES, Baader and APM that perform almost as well and their cost is lower so it is worth doing some research before buying. If you have an SCT the F/10 focal ratio may mean that other brands perform pretty much as well as the Tele Vues. The Andromeda Galaxy is a very large object so a low power, wide angle eyepiece is what is needed. Something like a 30mm 82 degree or a 40mm 70 degree would be what to use for that object. For a used ES 100 eyepiece I think £200-£230 is a reasonable price.