← 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
AthlonClip-on · 400-class
Athlon Cronus ATS Pro 35C-400
- Approx. price
- ~$3,000
- Sensor
- 400×300 · 12 µm
- Lens
- 35 mm
- Weight
- 16.7 oz
Buy from Athlon
Price and availability on Athlon’s site may differ.
Best for
Keeping your day scope and its zero while adding thermal at night
01Specifications
As published by Athlon. Sources: athlonoptics.com.
- Sensor
- 400×300
- Pixel pitch
- 12 µm
- NETD
- ≤25 mK
- Lens
- 35 mm
- Field of view
- 7.8° horizontal
- Display
- 1200x900 OLED
- Run time
- 10 h
- Weight
- 16.7 oz
- Length
- 5.2″
- Records video
- Yes
- Wi-Fi
- Yes
- Approx. price
- ~$3,000
02Pros and cons
From the published specs, not owner reports.
For it
- Ballistic calculator (you enter the range yourself)
- 10 h of battery, 33rd-longest of 344 here
- Records video and connects to a phone app
Against it
- 16.7 oz hanging off the front of your day scope
- No rangefinder, so you judge distance by eye
- No waterproof rating published
- Warranty terms not published
03Compare the 35C-400
04Related units
AthlonClip-on
Athlon Cronus ATS Pro 35CL-400
Est. detection
729 m
Maker’s claim
not published
- Sensor
- 400×300
- Pitch · Hz
- 12 µm · —
- Lens
- 35 mm
LRF · 16.5 oz~$3,500
BurrisClip-on
Burris BTC35 v3
Est. detection
729 m
Maker’s claim
1,000 m
- Sensor
- 400×300
- Pitch · Hz
- 12 µm · 50
- Lens
- 35 mm
16.2 oz~$3,000
BurrisClip-on
Burris BTC35 v2
Est. detection
729 m
Maker’s claim
1,000 m
- Sensor
- 400×300
- Pitch · Hz
- 12 µm · 50
- Lens
- 35 mm
16.2 oz~$3,000