Gossen Mavo-Spot 2 USB Manuel d'utilisateur télécharger pdf (Page 26)

26 GOSSEN Foto- und Lichtmesstechnik GmbH

9 Technical Data

Type Luminance meter with SLR optic and viewfinder display

for measuring light-source and surface brightness

Measuring angle 1° Field of view 15° diagonal

Classification Class B per DIN 5032, part 7, and DIN EN 13032, appendix B, CIE 69

Optical system 77 mm / f/1.8, flare factor f

< 2%,

Focusing distance 1 meter to infinity,

with optional accessories: as little as 34 cm with close-up lens

Light receiver Silicon photocell with V() filter – f

< 3%

Luminace units cd/m² or fl (switchable)

Measuring range 0.01 cd/m

to 99,990 cd/m

, 0.01 fL to 30000 fL,

automatic range selection

Measuring modes Luminance cd/m² or fL

Luminance ratio A/B, deviation %A, difference A-B

2 independently selectable correction factors CORR

Memory function MEM

Illuminance (by means of GOSSEN reflection standard as target, optional accessory)

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Gossen Mavo-Spot 2 USB Manuel d'utilisateur Page 26