Other Ethos question

Hi all:
Proud owner of a new 16" F5 ZOC (!!) and completing my Dob structure. My scope will be set up so that - for example - Radians (3,5,10) and Panoptics (35, 27,19) reach focus, but a 31mm Nagler will not - requiring too much infocus. Can anyone comment on the degree of infocus required with the Ethos relative to these EPs?
Joe

It should focus just fine. If you use the 13mm Ethos without a 1.25" adapter it should actually require just a bit of outfocus travel compared to your Radians and 19mm panoptic.

Joplin