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About the Light Source Pro App


Download / ViewApple iTunes StorePlatform

Apple iPhone


Four Pin Plug


Photo & Video





Job Tags for Light Source Pro

Cinematographers and Gaffers

Date Added

August 06, 2013

Developer's Description

Designed for Cinematographers, Directors of Photography, Cameramen, Lighting Directors, Stills Photographers, Camera Assistants, Gaffers, Best Boys, and Electricians; and as a guide to Producers, Line Producers and Production Managers - Light Source helps take the guesswork out of choosing the correct lamp for the job in hand.

“Essential Tool - Highly recommended for all DP’s & gaffers” - SMurphyDOP

“One of those REALLY useful apps - I’m a junkie for preproduction, and having an app like this helps me a lot when I have to figure out which lights to order for a high-speed shoot or for a long throw. I really appreciate the hard work that went into this app.” - Art Adams

Light Source is a fully functional photometric calculator for industry professionals, for Film, Television, Photographic, Theatre and Stage applications. This application also serves as an essential learning tool for Film Schools and their students.

Light Source contains an extensive database of lighting fixtures from leading manufacturers. Enter your criteria and the search engine will suggest suitable lamps to meet your needs. Alternatively you can start by selecting your favorite lamp to see if it will be suitable for your requirements.

In Movie and DSLR mode the output includes a value for the actual exposure level (F/T stop) provided by the lamp with the given settings.
In all modes (Movie, DSLR and Stage) the output includes the foot-candles and beam spread you can expect.


-Light Search - let the App find the lights for you
-Light Library - search the library for a favorite light
-3 Calculator Modes - Movie, DSLR and Stage - allow you to enter criteria to suit your different jobs
-Refine your search by Throw and Beam spread
- Use Meters or Feet for your measurements
-Detailed results are outputted for Foot-candles, T/F stop and Beam spread for each lens type (whether spot, medium, flood etc.)
-Defaults - save or load commonly used settings for your calculations
-Extensive Database:
-Film Gear
-K 5600
-Kino Flo

Light Source’s primary function is to get you close to the exposure you wish to operate in, whether in F/T stops or foot-candles.
We’ve built the database from published data from the manufacturers and we’re hoping to expand the same as more information is published.
The T/F Stop exposure levels outputted by the calculator would be correct for the center of the lit area, falling to approximately 50% exposure at each side of the beam spread.

The database has been complied to contain as much relevant information for each fixture taking into account specifics for lens type, lamp setting and specific beam spread. Light Source updates will include new lamps and manufacturers as they come on board.

Light Source been built to be intuitive and quick to use while in the middle of a job. Anyone with a basic understanding of light / photography can pick it up quickly and get great results fast.

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About This Resource

"Apps for Pro Filmmakers" is a curated database of professional filmmaking apps that can help you get a job done a little better or a little faster. This is a regularly updated resource of 400 (and counting) mobile, tablet, watch, and now desktop apps. We only include apps made for and used by film, television, and digital media professionals.

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Directors Notes
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Directors Notes
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