Nightvision Photonis DEP - Aviator goggles
ONYX version is equipped with white phosphor P45 and the result is black&white image. This device with image intesifier tube Gen.2+ DEP - Photonis in version Delta ONYX AG has resolution minimal 57 lp/mm, S/N Ratio minimal 24, photocathode sensitivity is classified information and gain between 28 260x - 47 120x. FOM is minimal 1500. Lifetime is minimal 10 000+ hours.  This is definitely not DEP 0 or DST version. Real parameters DEP Delta  AG are in general much higher against minimal guaranteed parameters DEP 0  and parameters DEP DST too. IIT is Autogated.
Night   Vision Goggles/Image Intensifier Set AN/AVS-9 (F4949 Series)   Description First developed by ITT in 1992, the F4949 night vision   system continually has improved and is now designated the AN/AVS 9(V) by   the U.S. Government. The (V) indicates there are many versions in   service. The F4949 series is the standard night flying system for the   air crews of the U.S. Air Force and Navy. Over 13,000 F4949 systems are   in service in 34 nations, worldwide. Rotary-wing versions of the F4949   feature a rear-mounted, low-profile battery pack, which uses four AA   alkaline batteries, allowing operation for more than 50 hours. Power is   provided by a cable extending from the battery pack, over the helmet,   and into a connector in the mount. Fixed-wing versions feature a   front-mounted battery pack, which uses two 1/2 AA lithium batteries that   allow operation for more than 16 hours. An optional battery pack   adapter enables connection of the fixed-wing F4949 to the rear-mounted   battery pack, providing the same operational time as the rotary-wing   versions when ejection is not a consideration. An optional clip-on power   source enables hand-held operation of the binocular without use of a   flight helmet. ITT’s F4949 series of aviator’s night vision systems is   available in over 40 different configurations. The type of aircraft and   type of helmet being used will determine which configuration – existing   or customized – will best meet our customer’s requirements. 
For more  than 45 years, ITT Night Vision has provided the military with  premier  vision-enhancing solutions. As the world’s leading  manufacturer of  Generation 3 (Gen 3) image intensification technology,  ITT continues to  work hand-in-hand with customers to expand night  vision and  vision-enhancing capabilities, technologies, and resources.  ITT also  provides technical support, service, training, and maintenance  for our  products to maximize customer benefits and usability.
ITT Night  Vision offers the AN/AVS-9 (ITT F4949 Series) Night Vision  Goggle/Image  Intensifier Set with various objective lens filter options  and various  flight helmet-mount configurations – all designed to meet  individual  customer requirements.
 
Features and Benefits:
- Gen 3 tube performance offering high resolution, high gain, photoresponse to near infrared, and exceptional reliability.
-  Class A, B, C, and UK 645 minus-blue filters for objective lens   available to suit all types of cockpit lighting, including color   displays and fighter HUDs.
- Helmet mount configurations designed for  fixed-wing and rotary-wing  applications, adapting to most aviator  helmets (U.S. HGU-55/P,  HGU-56/P, HGU-84/P, SPH 4AF, SPH-4B, SPH-5;  British Alpha 202 and Mk4;  French OS and CGF). Other mounts available  upon request.
- 25-mm eye-relief eyepieces easily accommodate eyeglasses.
- Low-profile battery pack improves aviator head mobility and increases battery life.
-  Other features include flip-up/flip-down capability, simple binocular   attachment, individual interpupillary adjustment, tilt, vertical and   fore-aft adjustments to fit all aviators.
Specifications:
 
Spectral Response Visible to 0.90 µm (IR)
Field of View 40° nominal
Magnification Unity
Resolution 1.3 cy/mr, minimum (1.36 typical)
Brightness Gain 5500 fL/fL, minimum
Collimation ?1° convergence
?0.3° dipvergence/divergence
Interpupillary Adjustment Independent, 51 to 72 mm total
Vertical Adjustment 25 mm, range
Fore-and-Aft Adjustment 27 mm, range
Tilt Adjustment 10°, range
Objective Lens EFL 25 mm F/1.23, T/1.35
Objective Lens Filters Class A, B, C, UK 645 available
Objective Lens Focus Range 41 cm to infinity
Eyepiece Lens EFL 27 mm
Eyepiece Exit Pupil/Eye Relief On-axis: 14 mm @ 25-mm distance
Full-field: 6 mm @ 25-mm distance
Eyepiece Adjustment +2.0 to -6.0 Diopters
Flip-up/Flip-down Button release
Automatic Breakaway 11 to 15 g
Battery Type Fixed wing: 2 ea. 1/2 AA size, lithium
Rotary wing: 4 ea. AA size, alkaline
Weight of Binocular 550 grams
Weight of Mount
Fixed Wing 250 grams
Rotary Wing 330 grams
Operating Temperature Range -32°C to +52°C