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» Film-Tech Forum ARCHIVE   » Operations   » Digital Cinema Forum   » Light Meter, good, nice & cheap

   
Author Topic: Light Meter, good, nice & cheap
Isaac Gonzalez
Film Handler

Posts: 1
From: Laureles Erendira, Tarimbaro Michoacan, Mexico
Registered: Dec 2011


 - posted 06-03-2013 02:25 PM      Profile for Isaac Gonzalez   Email Isaac Gonzalez   Send New Private Message       Edit/Delete Post 
Hello everyone in the forum

I'm checking for light meters movie screens, conosco some professionals like Harkness, PhotoResearch, USL these are professional and technical use.

I need a light meter that you can review these ranges, for consultation, and not as a professional measurement calibration.

can anyone recommend me any?

I reviewed Sekonik, Extech, BlueMetric, can you recommend others?

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Harold Hallikainen
Jedi Master Film Handler

Posts: 906
From: Denver, CO, USA
Registered: Aug 2009


 - posted 06-03-2013 02:49 PM      Profile for Harold Hallikainen   Author's Homepage   Email Harold Hallikainen   Send New Private Message       Edit/Delete Post 
The USL LSS-100 might be of interest. Info is here. One is online at web.

Harold

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 06-03-2013 03:09 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
The problem with the Sekonic was the shutter: did not work with 35mm. It may work well with Digital though.

I heard of an accurate light metre from... TLS I think. Good price and accurate. If you're only looking for light measurement it may work well for you.

It may be this this

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Scott Norwood
Film God

Posts: 8146
From: Boston, MA. USA (1774.21 miles northeast of Dallas)
Registered: Jun 99


 - posted 06-03-2013 03:22 PM      Profile for Scott Norwood   Author's Homepage   Email Scott Norwood   Send New Private Message       Edit/Delete Post 
I have a Spectra SC-600. Got it used at a good price and paid something like $200 to have it calibrated (which is supposed to be done every year). The other one that is common is the Minolta LS-100. Spectra can calibrate these, too.

Having a light meter will significantly improve the results of lamp alignment, and will also speed the process.

Unfortunately, this is less of an issue with digital. For [dlp] you really want some way to measure the color of the image, not just the brightness. The unit that everyone likes is the PR-655 from Photo Research. Sit down before you look at the price (in the $16k ballpark, last I checked). Not sure on the calibration price.

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Antti Nayha
Master Film Handler

Posts: 268
From: Helsinki, Finland
Registered: Oct 2008


 - posted 06-04-2013 05:03 PM      Profile for Antti Nayha   Email Antti Nayha   Send New Private Message       Edit/Delete Post 
If you only need a simple tool just for measuring foot-lamberts, Harkness’s Digital Screen Checker is an affordable option.

Edit: Ah, it seems to be the exact same meter as the one Marco just mentioned... just different branding.

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 06-09-2013 03:54 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
If it's only the light level you're looking for, you could ask your engineer to recalibrate the lamp files every year when you're servicing the projector, it should not drift too much.

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