Clavius - ED80

[mightymonoped]

Thought I'd posted this..but I couldn't find it so apologies if this is a duplicate

From my 4:00am session yesterday

ED80, Televue 2x Barlow, undriven alt-az on photo tripod.

Tony

[CELESCOPE]

Amazing image Tony with that set up , pin sharp as well , cant get betterv than that mate

Rog

[moondog]

Cracking image Tony, whatever the equipment !!

MD

[Saso]

Amazing image.

I try to focus last night with ED80, with 2xbarlow and with TeleVue 3xBarlow, Canon EOS 400d but I can't reach focus. How do you do that.

Saso

[mightymonoped]

Saso,

Sorry, I forgot to mention this and it is important..

If you are trying to do prime focus imaging with the ED80, it will NOT achieve focus unless you use an extension tube or a diagonal.

My preference is to not use the diagonal as it's just one more thing between the light and the imaging chip.

I recently bought an 80mm Revelation Extension Tube for £17 (features in Dec Sky at Night mag) and it works just fine with the ED80.

If you don't have an extension tube but do have a Televue Barlow then you can unscrew the actual lens element of the Barlow and just use the Barlow's tube as an extension tube, it means that you can't use that particular Barlow in your imaging, but you can always plonk another Barlow into your improvised extension tube

Another alternative is to buy something like Moonfish's 2" ED Barlow, this gives you all kind of options, you can use it as an extension tube and use your existing Barlows, or simply use it as a Barlow!

There, that's the end of my Blue Peter lecture on how to do ED80 imaging with the minimum amount of expenditure

Tony

[Saso]

Thanks for answer. I have one extension tube, I think it is 55 mm, I certainly try with it.

How can you manage to reach good focus like that? Try and fail until success?

Saso

[mightymonoped]

Just found this tucked away in a corner on my laptop. I think it's using a TAL 3x Barlow in the Revelation extension tube.

Probably pushing it a bit too far for the ED80 given the conditions, but I've just done a quick bit of slightly overblown processing and thought it was worth plonking on here. OK, it's not a 12" lightbucket, but the little ED80 is a great all round scope IMHO.

Tony

[Saso]

Another fantastic image. I certainly must try further.

[geppetto]

the little ED80 is a great all round scope IMHO

Can't argue with that, looking at your images Tony