Refractor BR-7

Sphere power	Range : ＋16.75 to －19.00 diopters Step : 0.25 diopters
Cylinder power	Range : 0.00 to - 6.00 diopters (0.00 to - 8.00 diopters with additional lens of - 2.00 diopters) Step : 0.25 diopters
Cylinder axis	0°to 180°, 5°steps
Cross cylinder	±0.25 diopters
Rotary prisms	0 to 20△, 1△steps
Auxiliary lens dial	(O) - Open aperture (two positions) (R) - Retinoscopic lens, ＋1.50D (P) - Polarizing lens 45° -left eye　135° -right eye (WMV) or (RMV) - Maddox rod, vertical white - left eye red - right eye (WMH) or (RMH) - Maddox rod, horizontal white - left eye red - right eye (RL) - Red lens (＋.12) - ＋0.12D shere (PH) - Pin hole (10△I) or (6△U) - 10△base-in - left eye 16△base-up - right eye (Dissociating prisms) (±.50) - ±0.50 fixed cross cylinder (OC) - Occluder
P.D. adjustment	48～75mm, 1mm steps
Standard accessory lenses	Two －0.12D and －2.00 cylinder lenses, two plano lenses for sealing front opening
Standard accessories	1 near point card holder and reading rod, dust cover, face shield, accessory case for lenses
Dimensions	318 × 293 × 96 (mm)
Net weight	Approx. 4.5 kg
Standard color	Black or honey gray