Some low- to midrange thermo cameras

overview and tests of some thermographic cameras

overview and parameter

main parameters	type	Testo 875-2i	Testo 885
	firmware version	1.68	1.88
	camera body
	interchangeable lense	yes, tested: 32°x23° , 9°x7°	yes, tested: 30°x23°
	lense material	Germanium	Germanium
	auto focus	no	yes
	price category	B	C
sensor	technology	bolometer array	bolometer array
	pixels	160 x 120	320 x 240
	thermal resolution (NETD)	< 50mK @ 30C	< 30mK @ 30C
firmware GUI	input	4 buttons, 1 joystick	5 buttons, 2 programmable, touch-screen
examples	thermo macro image
	thermo image
data storage on card	type	SD card, max 2GB	SD card, max 2GB
	image data format	jpeg JFIF standard 1.01, no metadata stored	JPEG image data, JFIF standard 1.01, no metadata stored
	thermo data format	IR & VIS combined PC bitmap, Windows 3.x format, 320 x 240 x 16 IR image readable with Gimp 2.8.18
PC Software	version	IRSoft v4.5	IRSoft v4.5
	runs on Linux	wine-1.8.7 : no	wine-1.8.7 : no

Notes: The Testo 8752i behaved erratically (no update to IR image, getting very sluggish, not able to format card) when a 4GB SD-card (made by Kingston) was used.

thanks

• To Testo GmbH for making two cameras available for tests on short notice.

Peter Apian-Bennewitz, info[AT]pab-opto.de, Text written, Images taken by me.
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