| Type |
SLR spot luminance meter for measuring light-source and surface brightness |
| Acceptance angle |
1° |
| Optical system |
85mm f/2.8 lens; SLR viewing system; flare factor less than 1.5% |
| Angle of view |
9° |
| Focusing distance |
1014mm (40 in.) to infinity |
| Minimum measuring area |
Φ14.4mm |
| Receptors |
Silicon photocell |
| Spectral response |
Within 2% of CIE photopic luminosity curve (illuminant A; integrated value from 400 to 760nm) |
| Response time |
FAST: Sampling time: 0.1s; Time to display: 0.8 to 1.0s
SLOW: Sampling time: 0.4s; Time to display: 1.4 to 1.6s |
| Luminance units |
cd/m² or fL (switchable) |
| Measuring range |
FAST: 0.001 to 299,900cd/m² (0.001 to 87,530fL)
SLOW: 0.001 to 49,990cd/m² (0.01 to 14,590fL) |
| Accuracy |
0.001 to 0.999cd/m² (or fL): ±2% ±2 digits of displayed value
1.000cd/m² (or fL) or greater: ±2% ±1 digit of displayed value
(illuminant A measured at ambient temperature of 20 to 30° C / 68 to 86° F) |
| Repeatability |
0.001 to 0.999cd/m² (or fL): ±0.21% ±2 digits of displayed value
1.000cd/m² (or fL) or greater: ±0.2% ±1 digit of displayed value
(Measurement subject: illuminant A) |
| Temperature/humidity drift |
Within ±3% ±1 digit (of value displayed at 20° C / 68° F) within operating temperature/humidity range |
| Calibration mode |
Konica Minolta standard/user-selected standard (switchable) |
| Color correction factor |
Set by numerical input; range: 0.001 to 9.999 |
| Reference luminance |
1; set by measurement or numerical input |
| Measurement modes |
Luminance; luminance ratio; peak luminance or luminance ratio |
| Display |
External: 4-digit LCD with additional indications
Viewfinder: 4-digit LCD with LED backlight |
| Data output |
2-Way RS-232C Communication |
| External control |
Measurement process can be started by external device connected to data output terminal |
| Power Source |
One 9V battery; power can also be supplied by optional data printer DP-10 |
| Power Consumption |
While measuring button is pressed and viewfinder display is lit: 16mA average
While power is on and viewfinder display is not lit: 6mA average |
| Temperature/humidity range |
Operation: 0 to 40°C (32 to 104°F), less than 85% relative humidity
Storage: -20 to 55°C (-4 to 131°F) |
| Dimensions |
79 x 208 x 154mm
(3-1/8 x 8 3/16 x 5 7/8 in.) |
| Weight |
850g (30 oz.) without battery |
| Standard Accessories |
Lens cap; Eyepiece cap; ND eyepiece filter; 9V battery; Case |
