Canon RK-F1 auto refractor keratometer


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Canon RK-F1 is a balanced combination of simplicity and technology. Thanks to its modern and compact design, and the intuitive control interface, it is a perfect solution for keratometry.

The tool distinguishes with its power-saving ability, a wide range of measurements available. This device also has an opportunity to store two images. In total, the kit includes additional accessories, as well as printer cable and special-purpose paper. The final price for the item is 3,500€.

Ergonomic centralized control keys

The layout of the operation panel on the Canon RF-K1 makes the unit easy to use from either a seated or standing position. Control keys for each of the main functions are grouped together for your convenience.

Wide measurement range

The dioptric measurement range of -30D to +22D allows examination of strong myopia and other abnormalities for refraction. The radius of curvature extends from 5.5 mm to 10.0 mm for keratometry.

Motorized chin rest

A motorized chin rest on the Canon RF-K1 offers easy adjustment of the unit when beginning the eye examination

Corneal periphery measurement

The peripheral keratometry mode on the Canon RF-K1 provides accurate measurements for examining oblique astigmatism as well as for determining the best fit for a contact lens. The Canon RK-F1 Autorefractor Keratometer can be used to make a series of measurements at a 30 degree angle from the eye’s center along the attentive meridians.


Through retroillumination, the Canon RK-F1 Autorefractor Keratometer brings you a detailed view of the eye that is particularly useful for identifying cataracts, vitreous opacity, scars, and other serious eye problems.

Specifications Сanon rk f1 Auto Refractometer – Keratometer


Sphere (SPH) -30 to +22D when VD=12 mm (Increments: 0.12D and 0.25D)
Cylinder (CYL) 0 to +/-10D (Increments: 0.12D and 0.25D)
Axis (AX) 1 degree to 180 degree (Increments: 1 degree)
Pupil distance (PD) 0 to 85 mm (Increments: 1 mm)
Vertex distance (VD) 0/12/13.5 mm
Cylinder form -, +, +/-
Minimum pupil size 2.5 mm diameter
Radius of curvature 5.5 to 10 mm (Increments: 0.01 mm)
Corneal power 33.75 to 61.25D when cornea equivalent refractive index is 1.3375 (Increments: 0.05D, 0.12D, 0.25D)
Axis 1 to 180 degree (Increments: 1 degree)
Corneal periphery Measurement area: 30 degrees when radius of curvature is 8 mm


Corneal diameter 2.0 to 16.0 mm (Increments: 0.1 mm)
Retroillumination Available, 2 images can be stored in memory
Memory 10 measurements for each eye
Built-in printer Thermal line printer
Data output RS232C (The instrument to be connected must comply with the IEC601-1 standard)

Electrical and Environmental

Power saving system Available
Power supply 110/120V, 220/240V, 230V
50/60Hz, 0.4 – 0.8A
Physical Characteristics
Dimensions (W x L x H) Approximately 11 inches x 20.5 inches x 18.5 inches
(280 mm x 520 mm x 470 mm)
Weight Approximately 46 pounds (21 kg)


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