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Very short focal length eyepieces while nice , are hard for some people to see through .... exit pupil and eye relief ???
I'd be inclined to use a medium length nice quality eyepiece and a good quality barlow to get the extra magnification if I wanted it.
Imaging .... I've never tried imaging via an eyepiece .... you do realise that the eyepiece has to produce an image that's sharp and has a very large radius image plain at the registry distance of the camera ....
It's doable but hardly useful IMO as you are limited to the brighter objects - moon, some planets and not much else unless you've a good solar imaging energy rejection filter and or a very narrow bandpass Halpha filter say.
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