| Optical system |
Greenough optical system |
| Total magnification |
3.35-300x (depending on eyepiece and auxiliary objective used) |
| Vertical tube (SMZ745T) |
Built-in C-mount 0.55x magnification lens (F.N. 11), compatible with 2/3 in. or smaller CCD |
| Eyepiece tube |
Fixed type |
| Eyepiece inclination |
45 ° |
| Interpupillary distance adjustment |
52-75 mm |
| Eyepieces (with diopter adjustment) |
C-W 10xB (F.N. 22), C-W 15x (F.N. 16), C-W 20x (F.N. 12.5), C-W 30x (F.N. 7) |
| Zoom range |
0.67-5x |
| Zoom ratio |
7.5 : 1 |
| Auxiliary objectives |
G-AL 0.5x (W.D. 211 mm), G-AL 0.7x (W.D. 150 mm), G-AL 1.5x (W.D. 61 mm), G-AL 2x (W.D. 43.5 mm) |
| Working distance |
115 mm (standard) |
| Weight |
1.6 kg (SMZ745)
1.8 kg (SMZ745T) |