September 23, 2017

Watch: How to Turn a Keychain into a Perfect DIY Follow Focus

Here's a super cheap and easy follow focus solution. 

Follow focus systems can be pretty expensive, between $100 to $1500 depending on features and quality of the build, but you don't even need to spend more than a few bucks to get yourself a decent tool. In this video, filmmaker Dave Knop (aka: knoptop) shows us how he turned a random $4 dollar keychain he got from a hardware store into a pretty effective follow focus that fits large and small lenses. Check it out below:

The keychain Knop uses in the video is called the Key Band-It, a flexible band made out of waterproof, latex-free material. Though these things are designed to keep your keys safe, particularly while you're at the gym, we can clearly see that it works well as a follow focus thanks to its accordion design and "ThermoPlastic Rubber" band, which provides plenty of grip. (You can get it for $4 at Lowes.)

Is it the greatest DIY follow focus ever? I don't know, but it definitely looks like it works. So it might be worth a shot, especially if you're not using anything right now to help you focus.      

Your Comment

3 Comments

Awesome...!!
Another cool trick.
Thanks.

September 24, 2017 at 4:34AM

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Sameir Ali
Director of Photography
599

A rubberized band you manually move to put over the already rubberized band on your lens that you move manually!!???? WTF ARE WE DOING PEOPLE!? HOLY SHIT!

September 24, 2017 at 8:35PM, Edited September 24, 8:35PM

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bp
243

I want one, but they're not available in the UK...

September 25, 2017 at 12:13PM

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Karel Bata
Director / DP / Stereographer
362