specbos 1201 / 1201M in their basic configuration can measure Luminance only with diameters of 4 mm and more. Therefore four focusing optics were developed to allow the measurement of spots with 3 mm, 1 mm, 0.5 mm and 0.25 mm diameter. These spots are marked by a laser circle. The 0.5 mm and the 0.25 mm add ons are fitted out with a magnifying glass to simplify the precise adjustment. (download datasheet (175kB)).

All add-ons can easily be attached to the basic instrument by screwing. The type is automatically detected and the appropriate calibration data will be applied.

Measuring objects:

Focusing Optics	#1	#2	#3	#4
Measuring diameter	3 mm	1 mm	0.5 mm	0.25 mm
Measuring distance	70 mm	26 mm	46 mm	46 mm
Field of view	2.1°	1.9°	0.6°	0.2°
Length	77 mm	26 mm	77 mm	77 mm