OKII Systems FOLLOW FOCUS USB Lens Controller /Canon 1D,5d,7D,60D,500D | eBay
Sevenoak USB Follow-focus Controller SKF01E for Canon DSLR Cameras Rebel 5d Etc. for sale online | eBay
Okii's USB Follow Focus for Canon EOS filmmakers
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Okii's USB Follow Focus for Canon EOS filmmakers
OKII Systems FOLLOW FOCUS USB Lens Controller /Canon 1D,5d,7D,60D,500D | eBay
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Aputure V-Control USB Follow Focus - YouTube
Okii USB follow focus - responsiveness and speed test on Vimeo
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USB follow focus - focus point test with 5D Mark II on Vimeo
USB Knob Adds Remote Focus-Pulling to Canon SLRs | WIRED
Okii Offers USB Controllers for Canon DSLRs That Don't Interfere with HDMI
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USB follow focus - focus point test with 5D Mark II on Vimeo
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Rack Focus Test 1 - Okii USB Follow Focus Controller on Vimeo
Okii Systems FC1 USB Focus Controller for Canon – One Of Many Cameras
