How Lee Filters Are Made

May 8, 2012

Udi Tirosh

Udi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

May 8, 2012

Udi Tirosh

Udi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

Join the Discussion

Share on:

I always thought that the process of ND filter making is a pretty mechanical thing. That you would place a sheet of glass on one end of the machine, press a button and then a constant stream of ND filters would fall onto a conveyer belt.

It turns out it is not so, that the process of filter making, at least at Lee filters is almost entirely manual.

In the movie blow, Mike Browne take the grand tour at Lee Filter’s factory going through the different stations from making the resin, through various inspections, coating it with dye and shipping it off. I was really surprised to see how much manual labor goes into the process.

YouTube video

Filed Under:

Tagged With:

Find this interesting? Share it with your friends!

Udi Tirosh

Udi Tirosh

Udi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

Join the Discussion

DIYP Comment Policy
Be nice, be on-topic, no personal information or flames.

Leave a Reply

Your email address will not be published. Required fields are marked *

One response to “How Lee Filters Are Made”

  1. Brian L Thomas Avatar
    Brian L Thomas

    I love it when people who obviously no little about optics critique the process. Automation may well speed up the manufacturing process but automation would do little to increase quality. I is the one by one quality control processes that insure every filter meets spec!