Vari-Angle Prism Image Stabilization
Eco-Friendly Lead-Free Glass
Super Spectra Multicoated Optics
Doublet Field-Flattener Lenses
Apparent Angle of View: 60°
Center Focus Wheel
Runs on Two AA Alkaline / NiMh Batteries
Canon's third generation 12x36 IS III Image Stabilized Binocular features the proprietary IS system adapted from the lens systems to create this compact optic that compensates for hand-shake to make it ideal for a long day of bird or nature-watching and sporting events. Utilizing Vari-Angle prisms placed between the front lens and the main prism, when the internal gyro sensors vertical or horizontal detect movement they direct the prisms to compensate and correct for external the shaking to produce smoother views and panning. A microcomputer, outfitted with proprietary algorithms, enhances IS operation, aids shorter startup times, and enable more efficient energy consumption.
Beyond the image stabilization performance are optical features that improve image overall image quality. This begins with Canon's anti-reflection Super Spectra multicoatings to reduce light loss and improve image contrast. Next, they employ a Porro prism optical path that provides a rich depth of field to enable users to better judge distance between objects and a comfortable long 14.5mm eye relief. A doublet field-flattener corrects spherical aberration for distortion-free views, especially at the edges, and wide angle 60° apparent angle of view deliver a truly immersive observational experience. The binocular runs on two included, and readily available, AA batteries that will power the optic for up to nine hours at 77°F. Designed for portability and ease-of-use, it measures in with a compact length of 6.9" and weighs just over 23oz.
Optical Performance
12x magnification
36mm objective lenses
Porro prism optical path
Doublet field-flattener corrects spherical aberration for distortion-free views, especially at the edges
Eco-friendly lead-free glass
262' field of view at 1000 yd
60° apparent angle of view
Two-element objective lenses in one group
Five-element objective lenses in four groups
Use and Handling
Center focus wheel
±3 dioptric correction
Long 14.5mm eye relief, 3mm exit pupil
Runs on two AA alkaline or NiMh batteries
Continuous runtime of approximately 9 hr at 77°F (25°C), or one hour at 14°F (10°C)
Image Stabilization
±1° stabilization freedom
Vari-angle prism image stabilization system uses a combination of gyro sensors and microprocessor to adjust the angle for stabilization
Binocular type
Prism
Magnification
12x
Objective lens effective diameter
36mm
Filter Size
-
Real Field of View
5°
Apparent Field of View
55.3°¹
Field of View at 1000m
87.5m
OPTICAL CONSTRUCTION
Objective lens construction
2 elements in 1 group
Eyepiece lens construction
5 elements in 4 groups
UD lens
-
Doublet Field Flattener
Yes
Exit Pupil diameter
3.0mm
Eye relief
14.5mm
Prism type
Porro II prism
Lens coating
Super Spectra coating
FOCUSING AND DIOPTRIC CORRECTION
Focusing system
Object lens movement
Focusing method
Manual focus
Dioptric correction method
Dioptric correction ring
Dioptric correction range
+/- 3.0m-1 (dioptre)
Closest focusing distance
6m
IMAGE STABILIZER
Image Stabilizer system
Vari-Angle Prism
Correction angle
+/- 0.8°
Shake detection system
2 Gyro sensors
Image Stabilizer activation
Push button switch
Power source
2 x AA size batteries
Battery life
+25°C: approx 9 hours
-10°C: approx 1 hour (using alkaline batteries)¹
Battery level indicator
Yes (LED)
PHYSICAL SPECIFICATIONS
Water Resistance
-
Rubber coating
Yes
Operating conditions
-10°C to 45°C, 90% humidity
Width
127mm
Height
174mm
Depth
70mm
Weight (Excluding battery)
660g
