I can only speak from my own personal experiences with them. They tend to be difficult to hold steady with the increase in magnification as it moves from low to high. The lens quality is more important than the magnification powers. If it is not crisp & clear to view and you never achieve a good focus , then all the power of X equals zero in your end results and the viewing is a waste of time.

Also what you are watching and how close you can get with the binoculars to it is the other factor in your search. If you are tracking wild animals , they tend to distance themselves from you and so you'll need the higher power device to follow them but the shake-factor will set-in. Now your will need a monopod or tripod and what I use.....a Spotting Scope ( a monocular ) which is better suited for objects @ great distances. These are for things at greater than 150 yards and the Binocular is most appropriate for closer objects of course

I would recommend that you go to a sporting store like Bass Pro or something similar and test out some of their optics before acquiring one to see if you can handle the magnification factors.

Good Luck