Estimated arrival at B&H is 7-14 business days. Your order will only be charged at time of shipment.
International Orders*The Spectra-Cine Candela IIIR PhoRad Luminance Photometer accurately and consistently measures the light output of radiological equipment (viewing boxes, image workstation monitors, image intensifier monitors) to ensure that user is in compliance with recommended light levels.
Why is this so critically important? In an effort to reduce the rate of misdiagnosis (estimated to be as high as 30% by a number of research studies), the Federal Drug Administration, American College of Radiology (ACR), the American Cancer Society and the European community of radiologists have all adopted guidelines and standards for viewing lighting levels. Readings from the highly accurate and consistent Candela SC-810 PhoRad IIIR luminance Photometer are in nits or candelas per meter squared (cd/m2) or foot Lamberts (fl).
This instrument is highly recommended for quality assurance and consistency of medical imaging at Diagnostic Imaging departments in hospitals and clinics.
Note! Nit: an MKS unit of luminance, equal to one candela per square meter, or 10-4 stilb. The nit is not approved as part of the SI, but it has been approved since 1947 by the International Commission on Illumination (CIE) and is in wide use. The name of the unit comes from the Latin niteo, to shine. This unit is sometimes called the meterlambert, by analogy with the footlambert.
| Measuring System | Hand-held photometer for measuring luminance intensity in candelas per meter squared (cd/m2); Contact measurement with the Luminance Probe placed directly on the surface to be measured |
| Measuring Modes | Measures luminance level in candelas per meter squared (cd/m2) or foot-lamberts (fl) |
| Receptor Head | Aperture 19mm; Measuring surface 6.25 x 6.25mm; Head rotates approximately 270° Ultra-stable silicon photodiode, together with computer selected glass filters to match the spectral response of the human eye; Operating Temperature Range: 32°F to 130° (0°C to 55°C) |
| Aperture/Shutter Priority | Not applicable |
| Display Readout | Electroluminescent lamp for backlit display; Resolution: 1 to 999 in 1 cd/m2 increments; 1,000 to 99,990 in 10 increments; Accuracy: Incandescent light source +/- 2.5% of the measured value; Additional error when measuring non-blackbody sources +/-3% |
| ISO Range | Not applicable |
| f/Stop Display Range | Not applicable |
| Shutter Speed - Ambient | Not applicable |
| Shutter Speed - Flash | Not applicable |
| EV Range (ISO-100) | Luminance Range: 1 - 100,000 cd/m2 |
| Cine Speeds | Not applicable |
| Exposure Memory | Up to three readings |
| Shadow/Highlight Calculation | Not applicable |
| Brightness Difference | Not applicable |
| Flash to Ambient Ratio | Not applicable |
| Multiple Flash | Not applicable |
| Exposure Calibration | Calibration is traceable to the National Institute of Standard Technology (NIST), Washington D.C. |
| Power Source | One six (6) volt battery #A544, PX28L, PX28 |
| Dimensions | 5.5 x 2.5 x 2" (140 x 63.5 x 50mm) |
| Weight | 6 oz (168 g) |