How camera lenses are made

From the markings on the barrels, these appear to be lenses made by JML Optical. It shows how painstaking it is to make high quality lenses. I thought it was interesting to see the strange mix of high-tech (vacuum chambers and electron beams) and low-tech (wooden sticks and plastic cups) manufacturing methods used in the production of one lens.


By John Watson

John Watson is the original founder of Photodoto. If you're interested in what John has been up to, you can browse his personal blog.


  1. Thank you for sharing, John. I have a background in manufacturing engineering, so this stuff always interests me. For the operation they had, the thing that really seemed inefficient was the markings on the barrel. What a slow process.

    It makes you appreciate the cost of Nikon and Canon’s nifty fifty.

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