7x is my preferred power, 6x not reaching out quite far enough (tho I could live with the 6x30 Yosemite) and 8x just being a tad unsteady, especially with a quick one-handed glance at something.
I have purchased two 7x roofs in over the last 18 months. Both from Eagle Optics. Both had good to great optics, but not the phenomenal depth of field I get from optically very good porro optics like the Aculons.
The first were Altas Optics Intrepid 7x36.
http://www.eagleoptics.com/binoculars/atlas-optics/atlas-optics-intrepid-ed-7x36-binocularThe thing I never got used to was the focus knob, like 2 1/2 turns, just wasn't quick enough when that warbler was gonna be gone in two seconds. So I gifted them off.
Next I got the Celeston 7x33's...
http://www.eagleoptics.com/binoculars/celestron/celestron-granite-7x33-binocularGreat optics! One and a bit turns of the focus knob lock to lock. I bought 'em so as to have decent optics on a windfall trip to Costa Rica this past summer (chaperoning students for a travel company).
Depth of field was just average but clarity was very good.
I accidentally knocked 'em off a table at breakfast one morning and they landed hard on a tile floor, knocked 'em out of alignment
Which brings up another point; EVERY pair of binocs I own is functionally a "truck" binocular, likely to be brung along everywhere and abused accordingly.
My default pair is ten plus year-old Brunton Eterna Roofs 7x44, heavy and no longer made, built like a truck. Decent functional optics but I've seen better.
Once I left 'em on the roof of the car and had to take the next exit to go back and retrieve them off of the Interstate
Still work fine. Fortunately I had also brung them to Costa Rica as a backup pair (being stuck on a place like Costa Rica with no bincos at hand would be a species of Hell fer me
).
At $60 these Aculons I just got are the most inexpensive binocs I have thus far found that have good optics. How they hold up remains to be seen.
Also, been a while since I had binocs that weren't waterproofed. I don't recall that being a major problem in the old-style porro decades gone by, I'll find out with these I guess.
Birdwatcher