| Product | |
| Product Category | ENG/EFP Lens |
| Product Series | KH20ex5.7 IRSE |
| Image Composition | |
| Object Image Format | 1/2 inch |
| Aspect Ratio | 16:9 |
| Object Image size | 6.97 mm (H) x 3.92 mm (V) |
| Zoom Ratio | 21 X |
| Focal Length Range | 5.7~120mm |
| Focal Length Range with Extender | 11.4~240mm |
| Angular Field of View | At 5.7mm
62.9 o (H) x 38.0 o (V)
At 120mm
3.3 o (H) x 1.9 o (V) |
| Angular Field of View with Extender | At 11.4mm
31.5 o (H) x 19.0 o (V)
At 240mm
1.7 o (H) x 0.9 o (V) |
| Optical Brightness | |
| Maximum Relative Aperture (F-Number) | 1 : 1.4 at 5.7~86mm
1 : 1.95 at 120mm (Ramping Characteristic) |
| Maximum Relative Aperture (F-Number) with Extender | 1 : 2.8 at 11.4~172mm
1 : 3.9 at 240mm (Ramping Characteristic) |
| Scene Composition | |
| MOD From Front of Lens | 0.8 Meter (10mm with Macro) |
| Scene Object Dimensions at MOD | 92.2 cm x 51.9 cm at 5.7mm
4.3 cm x 2.4 cm at 120mm |
| Scene Object Dimensions at MOD with Extender | 46.1 cm x 26.0 cm at 11.4mm
2.2 cm x 1.2 cm at 240mm |
| Physical Attributes | 6.7in (169.4mm) 4.4in (111.9mm) 8.6in (217.5mm) 3.9lbs (1.79kg) |
| Width | 6.7in (169.4mm) |
| Height | 4.4in (111.9mm) |
| Size Length mm mod1 | 8.6in (217.5mm) |
| Weight1 | 3.9lbs (1.79kg) |
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