Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: How does the zoom function work on these binoculars?
Document: They work pretty well for me. I saw Jupiter and some of its moons. Was a little big and heavy. Harder to hold still than I thought it would be. The zoom feature is nice. It came with a free tripod mount and it works great on my old camcorder tripod. I'm happy... Now all I need is some warmer weather and clear skys.
I bought one pair and it had double image out of the box. returned immediately for another pair and came in working fine, after about 3 months in the closet I brought them out and again with the double image and the zoom did not work (by this time the return policy had expired of course). I am a long time fan of Nikon but these were really disappointing product twice!
They work fine. Just a little heavy to hold still. They are crystal clear. I am having fun viewing the wild birds and sailboats.
The best binoculars I've ever owned. So clear, and the zoom is great. I just don't know why I need to add 7 more words?
These binoculars are great, the lever to zoom in is perfect and you can find what you want then easily zoom in for more clarity. I love Nikon and this is my 2nd pair of their Binoculars and I love the brand and this product more.
Five minutes out of the box and the zoom stopped working. Stupid of me to think that I could get decent high-powered binoculars at such a low price. If it sounds too good to be true, ...  Don't waste your time or money on these.
Excellents binoculars, perfect for nigth sky. Very good brightness even with zoom.The grip es perfect for hands, but with time maybe a little dirty with dust.Very good finishes, it heavy for long time use, but it comes with tripod adapter.
I have had several pairs of binoculars myself, and when you zoom in and refocus you just can't get them to come in clear unless you back off the zoom a bit then they will become clear. So what good is zoom if they're not going to be clear when zoomed in all the way. Well good news for the folks that bought these, because these are crystal clear while zoomed all the way in!!!
we gave it a 4 out of 5 grade because of it's size. The last two binoculars we bought were much smaller but not as good for bird watching as the Nikon's. Don't get us wrong for the price we are very happy with the Nikon 8252 Aculon A211 binoculars and the zoom feature is awesome! My wife and I are glad we maid the purchase!
I had an old set of binoculars that were a little foggy. I looked around and checked reviews. I chose these for the ability to turn a knob and get 22  power. They are great! I find the objects in 10 power and then zoom in to 22 and I can read license plates from 550 feet. I even looked up at an jetliner up in the sky and could tell what color it was, Honestly!
Answer: Awesome; very easy to use with just turn of the lever...best feature!!!