2 inch eyepiece adapter/extension tube

[kev100]

Hi there, I need a new eyepiece adapter for use with my Myriad 20mm and 250PX. The one I'm currently using (left) just doesn't extend far enough into the focuser to be safe with such a heavy EP. Any recommendations?

Cheers,

Kev

 

 

[rockystar]

This is what I use

https://www.telescopehouse.com/accessories/eyepiece-adaptors-and-extension-tubes/revelation-50mm-extension-tube-2.html

[kev100]

Cheers Lee, looks perfect!

Thanks,

Kev

[Charic]

I have the same Skywatcher supplied 2" adaptor, and looking carefully, there is a slight bevel to the insert( not clearly shown in my image) so as long as your grub screws are tight, it should be safe enough to support the weight of your eyepiece.

I use my Panaview  often, but not sure that comes anywhere near the weight of a  Myriad, but my Nikon D5000  naked without battery is over 550gms. and I have never had an issue with the camera  falling out.

But I do understand your belt and braces attitude in protecting your assets.

 

[Alan White]

20 minutes ago, rockystar said:

This is what I use

https://www.telescopehouse.com/accessories/eyepiece-adaptors-and-extension-tubes/revelation-50mm-extension-tube-2.html

I use the exact same one and a thumbs up from me too. ?

The grip ring is the winner for me, no marking, it's well made as well.
 

[kev100]

5 minutes ago, Charic said:

it should be safe enough to support the weight of your eyepiece

Hi Charic, Whilst I agree it should be safe enough, and I've been using if for a while now ... I've had a couple of near misses (one last night in fact), and now just won't risk it

Kev.

[Charic]

For astro photography its often the case that an 'extension tube' is required with regards to the focal point. Do these extension tubes have any adverse affect  for visual observations.

 

[kev100]

I only do visual, but, because the focuser is a low profile thing, albeit with a built in extension tube, I need the extra length to achieve focus.

Kev

[kev100]

Carrying on with the research, I think I'll have to measure how much of an extension I actually need. I may be able to get away with a 35mm extension like this one: https://www.365astronomy.com/TS-2-Extension-Tube-with-35mm-Optical-Length.html ) thus reducing the overall distance the EP will extend from the focuser ...

[Charic]

4 minutes ago, kev100 said:

Hi Charic, Whilst I agree it should be safe enough, and I've been using if for a while now ... I've had a couple of near misses (one last night in fact), and now just won't risk it

Kev.

Like I said, belt & braces!

My Telrad  base is stuck  with M3 and tie-wrapped when in situ.

My camera strap folds around the  OTA.

Even with a longer reach insert on my eyepiece adaptor, I'd still be constantly re-assuring myself, checking those grub screws occasionally, sometimes, often,.......all-the-time!.

I'd  even considered adding hydro-elastic line to my previous  Delos range, and hooking that over the finder scope. I have some suitable for Monster Carp. The lighter stuff works well on binocular dust caps.

[kev100]

Hi all, just reporting back. I went for the 50mm Revelation item, and it's streets ahead of the standard item. So much better! 

Thanks for the tip!

Kev