Instruction: Answer the given question using the supporting document.

Input:
Question: I'm looking for a binocular that is exceptionally good in low light to watch feeding owls at dusk and after.  How do these 10x 50's perform?
Document: Had this binocular for over a year, used it extensively. It's a nice large size and weight for holding still on a distant subject for a 10 power. It's a bit large and heavy for carrying around for a long period of time but fine for short walks and great to use from auto, ATV,etc. It's heavy duty and well protected for bumping around in a vehicle. Provides good clarity and good low light detail. Case is adequate.
These are great for birdwatching, even at dusk. They allow in enough light  that we were able to see the waterfowl on the lake as we were kayaking at dusk. We are extremely pleased and the customer service has been excellent. We are looking to buy a second pair. It's hard to share when you zero in on a rare find and then have to turn the binoculars over to someone else to see!
Very good in low light and much wider view than the 8x42s.Can't wait to take them on a trip.
the clarity and focus, detail you can see, etc is GREAT. SO CLEAR! I would say the low light performance is what i expected it to be -- good.. but the daylight view is BETTER than i expected.Focus adjustment is EASY.The feel/finish is really nice and feels tuff, feels durable.. The lifetime NO FAULT warranty sold me on them. Cannot beat that kind of value.
I'm looking forward to taking them on my next sailing trip.
Great light collection, crystal clear image. Around dusk it's brighter to look through the binoculars than with the naked eye.
I took the plunge on 10x50's after reading a compelling article on the Cornell Ornithology website.These Nikon Action EX 10x50 binocs are unusually well-crafted for a "low end" product. Their optics are sharp and bright, even at dawn or dusk. Their eye fatigue index approaches 18. Their ergonomics and controls are rugged and smooth. Most of all, the wiggle you'd expect from 10-power binocs are rarely a problem here because the frame is lighter than most products in this price-range.
I stand back from the window to watch birds and squirrels close to the house. A squirrel 20 feet away pretty well fills the field of vision.At this price, buy them. You might want a harness to steady them and spread the weight around if you'll be carrying them a lot, such as when hiking, or looking through them for a long stretch.
They are light, compact and very easy to use. Typically I will use them for short viewings (2-3hrs), rather than lugging my scope. I throw them in my back pack with my MySky, grab my sleeping bag/pillow and I'm gone. I highly recommend these for anyone.
Very good quality. Just as described. Purchased to use on a cruse to Alaska. Also will be using it to watch wildlife around the house. Little heavy, just as expected
Answer: The binocs are great.  I love the extending eye pieces, but don't use my glasses.  I use mine to look at the night sky when I don't want to drag my telescope out.  The only downside is they do get a bit heavy when holding them parallel to the Earth landscape (I typically lay in my sleeping bag and set them on my face).  But, having looked at other large binocs-weight is the normal downside.  The 10x50 wide angle is better preferred by the astronomy crowd-anything more and a tripod may be needed due to weight/instability.  I've never had any fogging problems in the cold Wisconsin nights, I have not tested the waterproofing.  The rubber coating is nice and these are very well built.  Definitely recommend these to anyone.