Optical System:

 Twin zooming objective

TotalMagnification:

 4x to 300x depending on eyepiece and auxiliary objective used

Interpupilary Distance Adjustment:

 52 to 75mm (2.0 to 3.0 inches) (C-W10x)

Eyepiece (with diopter adjustment):

 C-W10x (F.N. 22); C-W15x (F.N. 16); C-W20x (F.N. 12.5); C-W30x (F.N. 7)

Zoom Range:

 0.5x to 5x

Zoom Ratio:

 6.3:1

Auxiliary Objectives:

 AL 0.5x, W. D. 211mm (8.3 in); AL 0.7x, W.D. 150mm (5.9 in); AL 1.5x, W. D. 61mm (2.4 in); AL 2x, W.D. 43.5mm (1.7 in); AL ERG 0.77x - 1.06x, W. D. 102 - 48mm (4.0 - 1.9 in)

Working Distance:

 115mm (4.2 inches)

IlluminationSystems:

 G-LS 6V-10W Illuminator; G-LS 6V-10W Illuminator with G-E1A Articulated Supporting Arm; 6V-20W Illumination system with 6V/20W Lamphouse; 150W High Intensity Fiber Optic Light Source with single or double light pipes or ringlight; 30W Fiber Optic Light Source with single light pipe standard; Fiber optic cable and adapter for DS Diascopic Stand; Fluorescent Ringlight

Stands:

 C-PS Plain Focusing Stand; C-PSC Compact Plain Stand; C-DS Diascopic Stand S; Duplex Epi/Dia Focusing Stand; Universal Table Stand US1 (clamp type); Universal Table Stand US2; Universal Table Stand US3

Antistatic Function:

 1000V to 20V, less than 2 seconds

Airtight Construction:

 JIS dew prevention standard Type 1 compliant