Steiner Nighthunter C35 Gen II
The Steiner Nighthunter C35 Gen II is a 640×512, 12 µm thermal clip-on behind a 35 mm lens. On the Johnson yardstick that is an estimated 729 m detection and 182 m recognition range for a standing person; Steiner publishes no detection figure. Its published <30 mK NETD ranks 26th of the 51 units here that publish one.
- Approx. price
- ~$3,450
- Sensor
- 640×512 · 12 µm
- Lens
- 35 mm · 1×
- Est. detection
- 729 m · 797 yd
Keeping your day scope and its zero while adding thermal at night
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Box claim vs. what the optics support
One pixel of this unit sees 0.343 mrad (12 µm ÷ 35 mm). Two pixels across a 0.5 m human is 0.5 ÷ (2 × 0.343) × 1000 = 729 m. The box figure is usually computed against a person’s 1.8 m height instead, which is why it comes out higher. Full explanation.
Specifications
Manufacturer-published figures, cross-checked against steiner-optics.com page (item 9525, MSRP $3,449.99) + Steiner C35 Gen II user guide (V FOV 10.03 deg; single 18650).
- Sensor
- 640×512
- Pixel pitch
- 12 µm
- NETD
- <30 mK
- Refresh rate
- 50 Hz
- Lens
- 35 mm
- Field of view
- 12.5° horizontal
- Display
- 1280x960 OLED
- Run time
- 9 h
- Battery type
- 18650
- Weight
- 16.2 oz
- Length
- 4.7″
- Records video
- Yes
- Wi-Fi
- Yes
- IP rating
- splash-proof
- Warranty
- 2 years
- Approx. price
- ~$3,450
Derived here
Estimated from pixel pitch and lens focal length using the Johnson criteria (2, 8 and 13 pixels across a 0.5 m human critical dimension), clear air, 50 % probability. A model of the optics, not a measurement — real range depends on temperature contrast, humidity and the animal.
- IFOV
- 0.343 mrad
- Est. detection
- 729 m
- Est. recognition
- 182 m
- Est. identification
- 112 m
Features
- 640 sensor
- 12 µm
- 35 mm lens
- 50 Hz
- Removable battery
- Records video
- Wi-Fi
- Under 20 oz
- splash-proof
- OLED display
What the spec sheet says
Read from the published specifications and this catalog’s own numbers — not from owner reports, which we have not collected for this unit.
- 640×512 core — 3.0× the pixels of a 384-class unit
- 12 µm pitch — the 35 mm lens sees what a 17 µm core would need 50 mm to match
- Runs on 18650 cells you can swap in the field
- 9 h published run time, 11th-longest of 64 here
- 16.2 oz — 2nd-lightest of the 10 clip-ons here
- Records video and streams to a phone over Wi-Fi
- No detection range published by the maker
- 16.2 oz hanging in front of the day scope's objective
- NETD published only as a ceiling (<30 mK), not a measured figure
Compare the II
Related units
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- Sensor · lens
- 640×480 · 42 mm
- Pitch · refresh
- 12 µm · 60 Hz
- Est. detection
- 875 m
- Box claim
- 2,210 m
Armasight Jockey 640
- Sensor · lens
- 640×480 · 25 mm
- Pitch · refresh
- 12 µm · 60 Hz
- Est. detection
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- Box claim
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AGM Rattler-C V2 50-640
- Sensor · lens
- 640×512 · 50 mm
- Pitch · refresh
- 12 µm · 50 Hz
- Est. detection
- 1,042 m
- Box claim
- 2,600 m