Image Stabilization. Using a proprietary vari-angle prism, these heavy-duty 18x binoculars feature electronic image stabilization that corrects for hand tremors at ±0.7º in all directions. To use the image stabilization system, you must install two AA batteries (not included). Runtime on a fresh set of lithium batteries is about 8 hours (drops down to 2.5 hours with alkaline). Without power, the Canon 18×50 IS functions as a standard set of binoculars without any IS compensation.

Optics. These binoculars use a Porro prism optical path for a rich depth of field that makes it easier to judge the distance between objects without eye strain, plus it enables a shorter form factor for better handling. Aberrations are corrected for distortion-free views and the wide 60.3º apparent field of view provides an immersive viewing experience. The 2.8mm exit pupil produces bright, high-contrast imagery that’s suitable for dawn, twilight, and dusk.

Build. A textured, strongly water-resistant rubber coating provides rain protection and a sure grip. The center-mounted focus and stabilizer controls offer great ergonomics with easy access for both hands. These are equipped with a standard 1/4"-20 tripod mount and are compatible with 58mm filters. The distance between the eyepiece and your eyes is about 15mm, which is a comfortable amount for seeing the entire field of view without vignetting and is comfortable for those in glasses.

Other Canon Options Available. If you’re looking for Canon binoculars with different specs, we also offer the Canon 10×30 IS II Image Stabilized Binoculars, Canon 12×36 IS III Image Stabilized Binoculars, and Canon 15×50 IS All-Weather Image Stabilized Binoculars