When using mini binoculars, you sacrifice a little on field of view (FOV). The field of view is measured as the width of area visible at 1,000 yards.
Because of the smaller objective lens size in compact binoculars, the FOV will be narrower. Therefore, you don't want to get a pair that is too high in magnification, because the stronger magnification lenses will cut down your FOV too much.
You want a compromising balance between magnification and FOV in pocket binoculars.
Here are some well reviewed Mini Compact Binoculars that have exceptional viewing quality:
The Olympus Tracker 12x25 Compact Binoculars are a great pair of compact binoculars for under $70.
Review of the Olympus Tracker 12x25 Mini Binoculars:
Mini binoculars are nice to have because of their compact size. I usually have a pair wherever I go just so I don't miss out on a great bird or wildlife viewing opportunity.
I especially like using compact binoculars when going on long hikes or backpacking trips when I am carrying a lot of items and want to cut down on excess weight. I've also used them at sporting events and concerts.
Carson 3D 8x32 High Definition Binoculars with ED Glass are an excellent choice for compact binoculars.
Review of the Carson 3D 8x32 Compact Binoculars:
Here is another very lightweight option in the Higher End Category for compact binoculars you may not have heard of:
The large focusing knob and easy rotation is a special enough feature that it needs to brought to attention since most users mention this as one of their favorites.
It only takes 1.25 turns of the wheel can go from the minimum close distance (8.2 ft/2.5 m) to infinity.
Therefore, it's easy to track and keep in focus flying birds or whatever you want to follow in the distance.
Weight: Compared to the Carson compact binoculars above, the Kenko Ultra-lightweight is 16 oz (455 g) vs the Carson 3D 8x32 at 19.2 ounces (544 g)
Kenko 8x32 ultraVIEW EX Binoculars Review
We prefer the 8x25s vs the 10x25s because of the wider field of view
But if you will be doing more long-distance birding in open areas where it's easier to locate birds through the binoculars vs something like following small warblers in a dense spruce-fir forest, then you may prefer the stronger magnification of the Zeiss 10x25 Terra ED Pocket Binoculars.
There are also the Swarovski CL 8x25 Pocket Binoculars priced at over $800, but we don't necessarily think that they are that far superior to the Zeiss 8x25s (above) at nearly 3x the price.
If you are looking for something more in the budget-class, here are four mini binoculars under $50 that are well-rated and won't hurt your eyes - don't ever go too cheap, i.e., $12 binoculars from the Superstore!:
Bird Watching Binoculars, Squirrel-Proof Feeder & Hummingbird Feeder
Read Our Reviews:
Nikon Monarch M5
Best mid-priced bird watching binoculars. Waterproof, shockproof, multi-coated ED-Glass.
No batteries, adjustable, easy to clean...and no squirrels!
"Best New Product" Award.
Bird Bath Heater
Keeps your bird baths ice-free down to -20 F. Low-operating costs ~$1/mo
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