← All units
Calculated from the sensor's pixel pitch and the lens focal length, for clear air. 
How far you can see a person
112 m make out detail182 m tell what it is729 m spot it
501002005001k2k5k m
AthlonHandheld monocular · 400-class
Athlon Cronus ATS 35M-400
- Approx. price
- ~$1,875
- Sensor
- 400×300 · 12 µm
- Lens
- 35 mm · 2.6×
- Weight
- 12.3 oz
Check price on Amazon
We may earn a commission. Price and availability on Amazon’s site may differ.
Best for
Walk-and-scan glassing from a jacket pocket
01Specifications
As published by Athlon. Sources: athlonoptics.com.
- Sensor
- 400×300
- Pixel pitch
- 12 µm
- NETD
- ≤50 mK
- Lens
- 35 mm
- Digital zoom
- up to 10.4×
- Field of view
- 7.5° horizontal
- Display
- 640x400 OLED
- Run time
- 9 h
- Weight
- 12.3 oz
- Length
- 5.9″
- Wi-Fi
- Yes
- Approx. price
- ~$1,875
02Pros and cons
From the published specs, not owner reports.
For it
- 9 h of battery, 81st-longest of 344 here
Against it
- No rangefinder, so you judge distance by eye
- Narrow 7.8° view, so a moving animal is hard to find
- No waterproof rating published
- Zoom past 2.6× is digital and gets blurry
- Warranty terms not published
03Compare the 35M-400
04Related units
AthlonHandheld monocular
Athlon Cronus ATS 35ML-400
Est. detection
729 m
Maker’s claim
not published
- Sensor
- 400×300
- Pitch · Hz
- 12 µm · —
- Lens
- 35 mm
LRF · 14.8 oz~$2,375
BurrisHandheld monocular
Burris BTH35 v3
Est. detection
729 m
Maker’s claim
1,000 m
- Sensor
- 400×300
- Pitch · Hz
- 12 µm · 50
- Lens
- 35 mm
22 oz~$2,160
BurrisHandheld monocular
Burris BTH35 v2
Est. detection
729 m
Maker’s claim
1,000 m
- Sensor
- 400×300
- Pitch · Hz
- 12 µm · 50
- Lens
- 35 mm
22 oz~$2,799