I thought they were better than the 8x44 ED ... 820 Aububons .... the ER for eyeglass wearers was less than specified (at the time Swift advertised 18mm, today they list 16mm, but the useable ER for eyeglass wearers is only about 12mm)....
As always, your impressions are interesting, and in this case, unusual.
As far as the optics go, the ED Audubon is exceptional. My pair is the only "ED" bino i have tried that could be called an APO. To my eye, its level of correction generally in the central 1/3 of the field (along with the 820 and HR/5 models) approaches that of the 8x32 SE (but does not match it, but of course, what does?

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I wear eyeglasses, and own the HR/5, 820 and ED. My impression is that the HR/5 has a tiny bit more ER than the later, armored models. I wish i had one of the HR/5 ED models.
The ER on the 820 and ED i would put at about 14mm. I have measured the visible FOV for me, and of the stated 8.2 deg. FOV, I can see appox. 7.75 degrees in the HR/5 and 7.5 degrees in the later models. I should note the eye cups on the HR/5 are roll-down rubber. I do not miss seeing the edge, given the quality of view i can see.
All in all, I think the Swift Audubon hit its high mark in design with the HR/5, pre-armored version, apart from the closer focus on the later armored version. The older pre-armor ED version would be...well. When it comes to porros, probably what the gods use when in a porro mood, if they cannot find an SE of course :t: