S4 15-30 Degree Zoom
| Rear Lens |
206.9 mm |
| Front Lens |
370.6 mm |
S4 25-50 Degree Zoom
| Rear Lens |
125.8 mm |
| Front Lens |
219.8 mm |
Here are the calculated FL equivalents for the combined lens sets
| Fixture |
Actual Field Angle (per 7/2003 testing) |
Lens Focal Length |
| S4 15-30 |
16.2° minimum |
278mm |
|
31.3° max |
141mm |
| S4 25-50 |
26.9° minimum |
166mm |
|
49.0° max |
87mm |
| Fixture |
Actual Field Angle (per 7/2003 testing) |
Lens Focal Length |
| S405 |
6.9° |
658mm |
| S410 |
10.6° |
427mm |
| S419 |
17.7° |
254mm |
| S426 |
25.1° |
178mm |
| S436 |
32.7° |
135mm |
| S450 |
48.9° |
87mm |