Zoom
Lenses
Z25 2306525V
Sony produces a well-matched sensor chip having 2592 x 1944 2.2µm pixels, used by several sensor manufacturers. These images should be zoomed electronically by the user (clipped 26%) down to 1920 x 1080 to produce the FHD 1080p high quality image. The user may apply electronic zooming which will increase the full zoom ratio to more than 34x. If no electronic clipping is done when using these sensors, there is some vignetting evident right in the four corners of the image when completely zoomed out to the Wide Field position.
The lens has a simple GUI from where zoom positions and focus distance can be controlled.
Industry leading stepper motors with high precision position calibration, wide operating temperature with built-in temperature compensation, mill-spec vibration qualified, excellent boresight repeatability as well as very low boresight-through-zoom error, all combine in a compact, elegant package, ready for the most demanding airborne, ground and naval applications.
DIFFRACTION MTF vs FREQUENCY at EFL = 20mm
DIFFRACTION MTF vs FREQUENCY at EFL = 110mm
List of Chromar Zoom Lenses
EFL |
Ratio |
f/# |
ImgHt(semi) |
Narrow FoV |
Spectral Ranges |
Notes |
9-320 |
25x |
3.8 – 6.8 |
2.4 mm |
1° at 1080P format |
VIS |
Built, compact 173x58x46 mm |
18-430 |
24x |
3 – 5.6 |
6.4 mm |
1.7° at 1280 pixels |
SWIR |
Designed, based on the visual zoom concept |