ATN PS28-4 Night Vision Clip-On Generation 4

Description

Used, tested and in excellent condition. Image is FLAWLESS!! There are some very small scratches on the finish around the objective lens bell, consistent with normal use.
ATN PS28-4 Gen 4 Night Vision Clip-on System. Enhance your scope's nocturnal capability with elite 4th-generation night vision performance! NO re-zeroing, NO change of eye relief, NO shift-of-impact. The PS28-4 mounts in front of your daytime scope in seconds to provide Gen 4 performance. 100% waterproof and built to military specifications, the unit's quick-release rail mount attaches and detaches quickly and easily, effectively making you a 24/7 predator. The PS28-4 utilizes a Gen 4 image intensifier tube. Gen 4 Auto-gated / Filmless image tube technology represents the biggest technological breakthrough in image intensification of the past 10 years. By removing the ion barrier film and "gating" the system, Gen 4 demonstrates substantial increases in target detection range and resolution, particularly at extremely low light levels. An auto-gated power supply further improves image resolution under high light conditions, and reduces the "halo effect" to minimize interference from bright light sources. The reduced haloing maximizes the effectiveness of the PS28-4 in dynamic lighting conditions such as those experienced, for example, in night operations in urban areas. Hog hunters, LEOs, security forces -- if you're the type who demands best-of-the-best performance and image resolution, this is the alpha and omega of nighttime excellence.
Features: Mounts in front of your daytime scope, no re-zeroing required Multi-coated all glass optics for enhanced clarity and contrast Fast catadioptric front lens system Large 40mm eyepiece / output window Lightweight and rugged, 100% Waterproof Comes with quick-release Weaver mount Automatic brightness control Up to 50 hrs. continuous operation with 1 x 3V CR123A battery Built to MIL-STD-810 Tube specifications: Generation: 4 Auto-gated / Filmless Photocathode type: Filmless GaAs Resolution: 64-72 lp / mm Signal-to-noise ratio: 25-30 Figure of merit: 2,000 typical Mean-time to failure
Included items:
PS28-4
IR450-B4
Instruction Manual
Lens Tissue
Packing Box
Warranty Card
Mil-Spec Hard Case
Lithium Battery
Quick Release Mount
Lens Cap
Back Cup
Light Supressors
Specifications:
Total Darkness IR System Yes
IIT Generation 4
Resolution 64-72 lp/mm
Signal to Noise Ratio 25-30
Figure of Merit 2000 Typical
MTTF - Mean Time Before Failure 10,000 hours
Magnification 1x
Lens System
Proshield Lens Coating
FOV
Range of Focus
Diopter Adjustment No
Controls Direct
Automatic Brightness Control Yes
Bright Light Cut-off Yes
Infrared Illuminator Detachable
IR Indicator No
Low Battery Indicator No
Power Supply 1 x 3V(CR123A)
Battery Life 50 hrs
Environmental Rating Waterproof
Operating Temperature -40°F to +122°F
-40°C to +50°C
Storage Temperature -58°F to +158°F
-50 to +70 °C
Dimensions
Weight
Warranty 2 years
The ATN PS28-4 is top-end night vision for ATN. It’s a must-have for hunters and workers who demand high-quality night vision performance in front of their day scope or red dot. If ATN is your go-to brand, this clip-on is the NVD for multiple weapon setups with zero change to POI and eye relief.
Who is the ATN PS28-4 Best Suited to?
The PS28-4 is the best PS28 clip-on scope that ATN has to offer. What are you getting for the high price that makes it worth buying over the cheaper models? It has Gen 4 night vision technology. In short – an unfilmed tube with autogating. It comes with the specs that also qualify it as a high-end scope.
Who needs this type of quality? If you need professional use from your scope for hog hunting, prepping, or work, you will. It provides the type of quality you want for clear, bright, and crisp imaging with dependable performance in little light and zero retention on medium caliber weapons.
How Does the ATN PS28-4 Perform?
The PS28 clip-ons from ATN is a solid series that has solid performance. While many are happy with the PS28-2 and PS28-3, this model has the latest advances in night vision technology with an unfilmed/autogated tube.
Due to the higher specs and high-quality Gen 4 tube, its performance is noticeably better than said models. While even the PS28-2 is good out to 300-400 meters, the PS28-4 can provide longer range and better clarity in little to no light such as cloud cover and starlight out past 1200 meters.
The clip-on works best with a magnified optic since it has unity magnification, meaning, it has 1x magnification and will work in sync with your magnified optic. It works best with optics between 2.5-8x power, but it is compatible with 1-12x powers.
Features & Benefits
While Generation 4 is not an official night vision classification, it does indicate that an IIT has standout materials and specs. Other brands like AGM and Bering Optics don’t use the Gen 4 term but the Gen 3+. Hence, it’s less about “terms” than it is about features.
In this case, the ATN PS28-4 has an unfilmed, autogated IIT. It has a filmless (unfilmed) GaAs photocathode that provides high resolution of 64-72 lp/mm, SNR of 25-30, and FOM of 2000. These are high-quality specs that ensures optimum performance for long-range detection, clean and crisp imaging, and incredible performance in little ambient light conditions.
Clip-On
Clip-ons are more expensive than standalone scopes because they must be collimated to work with daytime scopes or night vision compatible red dot sights. Due to factory alignment, you don’t need to rezero your scope. The PS28-4 should produce no shift in your POI. It’s aligned to be accurate to within 0.5 MOA and should be repeatable.
The ATN clip-on comes with a quick release mount (QRM) that fits Picatinny rails, and a Weaver mount is an optional buy. You can also mount the clip-on to a conventional daytime scope with a side focus, but the adapters to the objective bell are also an optional and separate purchase.
Like most night vision clip-on scopes, the optical axes of the daytime scope and clip-on must be within 3mm or alignment issues are likely to occur. It’s designed to provide lower 1/3 co-witness on AR-style platforms.
Durability
The PS28-4 clip-on is MIL-STD-810G rated, so it’s tough and meets military standards. Tube life is estimated at 10,000 hours. It’s waterproof to 10m for 30 minutes and is nitrogen-purged for protection against internal fogging.
ATN devices are said to be recoil-proof up to 375 H&H. Most clip-ons are only rated up to .308 Win.
Long Battery Life
The clip-on runs on a single CR123 battery and provides up to 50 hours of use. IIT scopes have much longer lasting battery life than digital models or thermal devices. You can also conserve battery life with the included wired remote control that activates the scope from STB (Standby Position).