Film-Tech Forum ARCHIVE: Light Meter, good, nice & cheap

This is topic Light Meter, good, nice & cheap in forum Digital Cinema Forum at Film-Tech Forum ARCHIVE.

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Posted by Isaac Gonzalez (Member # 6691) on 06-03-2013, 02:25 PM:

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?

Posted by Harold Hallikainen (Member # 5405) on 06-03-2013, 02:49 PM:

The USL LSS-100 might be of interest. Info is here. One is online at web.

Harold

Posted by Marco Giustini (Member # 4544) on 06-03-2013, 03:09 PM:

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

Posted by Scott Norwood (Member # 30) on 06-03-2013, 03:22 PM:

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.

Posted by Antti Nayha (Member # 4980) on 06-04-2013, 05:03 PM:

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.

Posted by Marco Giustini (Member # 4544) on 06-09-2013, 03:54 AM:

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.