My favorite planetary eyepiece for visual & photographic work has a fairly small field of view ( If you have tracking a big FOV is not necessary ) not much ER ( I'm used to it ) It has only 4 elements ( more light transmission ) Off axis a bit seagully ( I don't care I keep the planet in the centre FOV ) It was EXTREMELY cheap ( 15 bucks second-hand or there abouts )
= .965" unitron orthoscopic 5/6/9/12.5mm
The 5mm is the best of the bunch for up close & personal type viewing of planets IF the seeing is 7/10 & better.
I use these on planets only naturally.