Key Features

  • All metal gears
  • Superb transmittance
  • Excellent boresight retention
  • Very good thermal stability (Optically and mechanically)
  • Options include extreme motor temperature ratings, RS Control, heating systems

Electrical, Control, and Feedback

Iris: 8-16Vdc @ 30mA, 0.4V to 1.0V (Peak to Peak)
Zoom/Focus: 6-12Vdc @ 60mA (Optional 3 and 6 Volt gear motors on some lenses)
AI PCB: 3.0Vdc @ 21mA
Position: Potentiometers at Zoom & Focus
Iris Control: Auto or (Optional) Manual
Control: Analog (standard) or RS-232/422 (Optional via DIS-III Control PCB & GUI)


DIS-III: Zoom Lens digital control system including PCB and GUI, enhanced with Ethernet, VISCA, and PELCO capability.
BCD: Boresight retention adjustment mechanism, improves the inherent boresight retention of all Graflex zoom lenses.
ZHS-II: Complete turn-key instrument heating kit. May be applied to any instrument, device, sensor, lens and includes up to three miniature heating pads, a thermostat, and a control PCB. Thermostat may be pre-set at factory or via the Thermostat Calibration PCB (includes GUI).

View Video-Related Options in more detail


The Graflex family of zoom lenses are built to withstand, at a minimum, the environmental specifications found below. Several of our zoom lenses will withstand more severe environmental applications, contact the factory for full details.

Operating Temperature:  The zoom lens will operate after having been exposed and thermally stabilized to any temperature within the range of -30° C and +70°C.

Storage/Transit Temperature:  The zoom lens will not be damaged after having been exposed and thermally stabilized to any temperature within the range of -40° C and +75°C.

Shock:  The zoom lens will not be damaged while subjected to three shocks of 10 g for 11msec saw tooth on each axis, in both directions (18 pulses total)

Vibration: The zoom lens will operate and not suffer damage when subjected to axial vibration (not angular) of 0.1gRMS within the frequency range of 10 – 150 Hz.

Altitude: The zoom lens shall be fully operational within the altitudes of -1200 feet below sea level to 40000 feet above sea level.


  1. Our approach relative to surviving severe environments is to work with a customer to "overcome" any failures which may occur through the testing phase of a lens; it is the responsibility of the customer to environmental test a lens, Graflex would make changes and recommendations based on any failures. Graflex will not warranty lenses for damage resulting from shock or vibration or any other severe environmental inputs.
  2. These published specifications may or may not apply to a specific lens. Please contact factory for specifications as they apply to a particular lens.