← ComparisonsCalculated from the sensor's pixel pitch and the lens focal length, for clear air.
Side by side
ATN BlazeHunter 635 vs Guide TD633 LRF
The BlazeHunter 635 runs a 640×512 core at 12 µm behind a 35 mm lens; the TD633 LRF runs 640×512 at 12 µm behind 35 mm. The BlazeHunter 635 is lighter by 2.0 oz. Approximate prices are ~$1,695 and ~$1,799.
How far you can see a person
Make out detailTell what it isSpot itMaker’s claim
ATN BlazeHunter 635640×512 · 12 µm · 35 mm
112 m make out detail182 m tell what it is729 m spot itmaker claims 1,830 m
Guide TD633 LRF640×512 · 12 µm · 35 mm
112 m make out detail182 m tell what it is729 m spot itmaker claims 1,800 m
501002005001k2k5k m
| Spec | ATNATN BlazeHunter 635 | GuideGuide TD633 LRF |
|---|---|---|
| Published | ||
| Sensor | 640×512 | 640×512 |
| Pixel pitch | 12 µm | 12 µm |
| NETD | <18 mK | 20 mK |
| Refresh rate | 50 Hz | 50 Hz |
| Lens | 35 mm | 35 mm |
| Base magnification | 2.5× | 2× |
| Digital zoom | up to 20× | up to 16× |
| Field of view | 12.4° horizontal | 12.5° horizontal |
| Display | 1440x1080 OLED | 1280x960 AMOLED |
| Claimed detection | 1,830 m | 1,800 m |
| Claim basis | unspecified (ATN product page 2000 yd) | unspecified |
| Run time | 14 h | 10 h |
| Battery type | 18650 | 18650 |
| Weight | 11.3 oz | 13.3 oz |
| Length | 6″ | 6.3″ |
| Laser rangefinder | No | Yes |
| Ballistic calculator | No | No |
| Records video | Yes | Yes |
| Wi-Fi | Yes | Yes |
| IP rating | IP67 | IP67 |
| Warranty | 3 years | 5 years (10 years on sensor) |
| Approx. price | ~$1,695 | ~$1,799 |
| Derived here | ||
| IFOV | 0.343 mrad | 0.343 mrad |
| Est. detection | 729 m | 729 m |
| Est. recognition | 182 m | 182 m |
| Est. identification | 112 m | 112 m |
| Claim ÷ estimate | 2.5× | 2.5× |
| Derived field of view | 12.5° | 12.5° |
| Pixels per degree | 51.1 | 51.1 |
| Where to buy | ATN → | Amazon → |
Tinted rows are where these two differ. Prices are approximate.