Side by side

Burris BTC35 v3 vs Guide Orion O435CS

The BTC35 v3 runs a 400×300 core at 12 µm behind a 35 mm lens; the Orion O435CS runs 400×300 at 12 µm behind 35 mm. The Orion O435CS is lighter by 6.1 oz. Approximate prices are ~$3,000 and ~$1,399.

How far you can see a person

Make out detailTell what it isSpot itMaker’s claim

Burris BTC35 v3400×300 · 12 µm · 35 mm

112 m make out detail182 m tell what it is729 m spot itmaker claims 1,000 m

Guide Orion O435CS400×300 · 12 µm · 35 mm

112 m make out detail182 m tell what it is729 m spot itmaker claims 1,800 m

501002005001k2k5k m

Calculated from the sensor's pixel pitch and the lens focal length, for clear air.

Spec	BurrisBurris BTC35 v3	GuideGuide Orion O435CS
Published
Sensor	400×300	400×300
Pixel pitch	12 µm	12 µm
NETD	≤35 mK	15 mK
Refresh rate	50 Hz	50 Hz
Lens	35 mm	35 mm
Base magnification	1×	1×
Digital zoom	up to 4×	up to 1×
Field of view	7.8° horizontal	7.9° horizontal
Display	1024x768 OLED	1024x768 AMOLED
Claimed detection	1,000 m	1,800 m
Claim basis	deer	unspecified
Run time	2 h	8 h
Battery type	CR123	Removable pack
Weight	16.2 oz	10.1 oz
Length	5.9″	3.9″
Laser rangefinder	No	No
Ballistic calculator	No	No
Records video	Yes	No
Wi-Fi	Yes	No
IP rating	IP67	IP67
Warranty	3 years	5 years (10 years on sensor)
Approx. price	~$3,000	~$1,399
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	1.4×	2.5×
Derived field of view	7.8°	7.8°
Pixels per degree	51	51
Where to buy	Burris →	Guide →

Tinted rows are where these two differ. Prices are approximate.