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               The Company manufactures precision field portable optical light measurement instruments. SpectraCine Professional light meters for the motion picture and video photography; Spectra CineSpot spotmeter for screen brightness and display measurement for theaters and review rooms; Spectra Candela photometers and spotmeters are designed for measurements in the industrial lighting field; Spectra Filmgate photometer for the film laboratories; Spectra Traffic Signal Light Tester or LED degradation meter for the traffic and transportation safety and Spectra PhoRad-Candela radiography meters are designed to control the lighting conditions under which radiographs and images are viewed and interpreted.

Spectra instruments have been the industry standard and the choice of professionals for the past 85 years and
have received several international Engineering Awards. More info...

new! Radiography meter

NDT/QA Meter.  Medical imaging at Diagnostic Imaging departments.  More info....

FILM / VIDEO
INDUSTRIAL

   

TRAFFIC SAFETY

 
THEATER / DISPLAY

Spectra Professional IV-A  Internationally Acclaimed Industry Standard

Spectra Candela-II hand-held photometer, spotmeter system

Spectra Candela TSL, field portable LED degradation and Traffic Signal Light Testers

Spectra CineSpot Spotmeter  measures screen brightness, uniformity, etc.


NEW SPECTRA CINE ® PROFESSIONAL V A LIGHT METER


Spectra Cine ® has been a pioneer in the field of light measurement since its inception in the early 1940s, established by the legendary cinematographer Karl Freund, ASC. Our commitment to innovation and excellence has made our products the standard in the industry for decades. The all-new Spectra Cine Professional V-A Advanced Touch Screen Light Meter represents the pinnacle of our technological advancements, offering unparalleled precision and usability for cinematographers, gaffers, and lighting professionals in the motion picture and TV industry.

Innovative Technology : The Spectra Cine ® Professional V-A is equipped with groundbreaking technology that sets it apart from any other light meter on the market:

  • Unprecedented Dynamic Range : This meter boasts an astonishing dynamic range of 100 million to one (0.01 to 1,000,000 footcandles), allowing for highly accurate light intensity measurements across an extensive range of ambient light levels. This capability is unique to the Spectra Professional V-A.

  • Advanced Design : The wide dynamic range is achieved through a combination of microprocessors and our proprietary Multiple Range Linear Circuit (MRLC) along with custom hybrid power conditioning circuitry, ensuring enhanced sensitivity and accuracy.

  • Firmware Excellence : Our firmware handles critical functions such as hardware initialization, auto-ranging, display control, data storage, power management, settings adjustment, calibration, and diagnostics, ensuring precise and dependable readings.

User-Friendly Interface and Features

    Advanced Resistive Touch Screen & Display: The 2.8-inch TFT LCD display (240 x 320 pixels) and resistive touchscreen provides an intuitive interface for selecting and switching ISO, Frames Per Second (FPS), Exposure Time, Filter Factor adjustment, Camera Shutter Angle, Hardware Settings, and Calibration Screen. Users can easily store, recall, and delete ambient light settings, cine screen selections, and more.

    Customizable Meter Display: Users can choose from several display screen options, including the Professional "Classic" display scale introduced by Karl Freund, ASC. This display simulates the original Classic Professional P251 1940's analog model, showing ISO, FPS, f-stop in digital 1/10th stop, and analog scale in 1/3rd stop increments, along with footcandles/lux.

Memory Functions

    Enhanced Memory Capabilities: The meter features new software update capabilities such as Flash Firmware Upload and open-source software compatibility. Users can store up to ten different measurements, which can be easily recalled with the RCL switch. The memory function supports the recall, deletion, and management of readings, including film speed, exposure time, f/stop, footcandles, and lux combinations.

Flexible Power Supply Options:

    Versatile Power Solutions: The Spectra Cine Professional V-A can be powered by 3 x AA 1.5-volt alkaline batteries and or 3 x 1.5-volt lithium rechargeable batteries, or a Power Bank via USB-C interface. This flexibility ensures continuous operation for several days, and the display brightness control (from 5% to 100%) helps maximize battery life.

Multiple Measurement Units

    Precision Measurement: The meter measures ambient light directly in f/stops, footcandles, or lux. The f/stop range extends from f/0.35 to f/128 in 1/10-stop increments, with an analog scale range from f/0.7 to f/45 in 1/3-stop increments, displayed simultaneously with film speed, frames per second exposure time, and intensity in footcandles/lux.

Wide Range of Settings:

    Versatile Performance: Film speeds range from ISO 3 to ISO 8000, accommodating various lighting conditions. The frames per second capability spans from 2 to 360 FPS, ensuring compatibility with a wide range of filming scenarios. Additionally, the exposure time ranges from 1/8000 second to 30 minutes, offering precise control over shutter speed for both fast-action sequences and long-exposure shots.

Open-Source Firmware

    SC-Open Source: Included with our Spectra Professional V-A light meter is open-source software license under spectracine.com/webserial. This software, along with example HTML files available in the Web Serial folder, can be opened in Chrome or Opera browsers (other browsers may also work). Detailed instructions are provided in the manual. You are free to use, modify, and distribute this software under the licensing terms of spectrcine.com/webserial.

Conclusion: The Spectra Cine Professional V-A Advanced Touch Screen Light Meter is a groundbreaking tool that combines advanced technology with user-friendly features to deliver unmatched performance and accuracy. Its unprecedented dynamic range, versatile power options, customizable display, and comprehensive memory functions make it an invaluable asset for professionals in the motion picture and TV industry. Spectra Cine's dedication to continuous improvement and innovation ensures that our products remain at the forefront of cinematography technology.

 

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