Eyepiece advice for Celestron advanced VX8 SCT.

[Spanish Tony]

Hi everyone, looking advice / suggestions please. Looking to purchase 1 eye piece that would suit the above set up. Can read so many reviews but would rather ask people’s advice and experience. So - what do I want, deep space specific, will be used for photography so must have the functionality for camera attachments. I don’t buy cheap 😂 you get what you pay for so open to suggestions. Thanks in advance. 

[RT65CB-SWL]

Hi @Spanish Tony and welcome to SGL. 

Two syllables... green lettering and numbers on side of eyepiece barrel...

 

...my 'one-to-many 13mm eyepieces'.

Seriously, I don't thing you can get much wrong with the Baader Planetarium mk lV 8-24mm zoom. It can be used with 1.25" or 2" e/p holders; plus they do a matching 2.25x Barlow lens and other accessories to compliment.

Sorry! Not much help am I.

[Louis D]

Since you're talking about a 2000mm telescope, you would probably want the longest practical focal length possible to limit magnification to something a bit more manageable.  As such, I would probably recommend a 30mm APM Ultra Flat field since it has an M43 thread under the eye cup that can be used to attach a camera to for afocal digiscoping.  It would yield 2000/30=67x and project a 70+ degree image into the lens.  Obviously, the taking lens must then be a wide angle lens.

I have no idea if it would work for eyepiece projection because few visual-only eyepieces project a flat enough field for photography.  Afocal projection avoids this because the taking lens of the camera does the flattening for the system.

May I ask why you would want to put an eyepiece into the system instead of just using prime focus photography?  If you add a focal reducer/corrector, the focal length will drop to about 1260mm, which is much more manageable.  Are you planning on doing high frame rate planetary photography at high powers?

[Spanish Tony]

Thank you both for your comments - and this is the reason I wanted ask before making any purchase. As a experienced photographer in most aspects, astro is new for me and I want people to question my thoughts and ideas and correct me if need be We all learn something new each day Thanks again. Have read a lot a of great reviews regarding the Baader range also the APM. Lots to consider thank you again.

[Ags]

11 hours ago, Spanish Tony said:

will be used for photograph

Normally (unless you are doing eyepiece projection) you attach the DSLR camera directly to the telescope (with no eyepiece) so that the telescope is simply a giant camera lens. This is the normal technique for astrophotography and is called "prime focus".

[RT65CB-SWL]

Apologies @Spanish Tony... completely forgot to mention a FF/CR and your 'scope is f/10. 

It's going to be steep-learning curve.