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GalapagosProduction

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    GalapagosProduction reacted to P337 in Cheap remote focus puller/Focus motor hack?   
    I don't know about a cheap one but there are a few USB follow focus models for Canon DSLRs that do just that for a couple hundred $.  And Garret Brown's original concepts for the Steadicam actually included a wearable eyepiece for monitoring! lol
     
    Here is one story I just quickly found on it:
    http://www.icgmagazine.com/wordpress/2008/07/18/stead-as-she-goes/
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    GalapagosProduction reacted to Axel in Cheap remote focus puller/Focus motor hack?   
    The model for the remote follow focus for a steadicam would be the intuitfocus:
    http://vimeo.com/9827192
     
    There had been attempts to DIY sth. like this. I followed this video:
    http://www.youtube.com/watch?v=D3-P1rKCEEg
    (but didn't finish it, I just can confirm the low prices for the parts)
     
    Parts are cheap (~20 bucks all together). I like the whole 'rig' design in this video. Perfect for an EOS with Magic Lantern.
     
    You must know: These cheap servo testers
     
    > allow a rotation angle of 90°. So you can only follow part of your lenses' focal range. I.e. the Nokton 25mm rotates 270° to go from 0,17 m to ∞. But: Only about 60° cover 1m to ∞.
     
    > will translate the position of the controller knob exactly to the motor, but there is no ease-in, ease-out, like with the zoom lever on a modern camcorder, so slow focus transitions are not possible.
     
    There are digitally controlled servers available, but they are expensive. Ask at your modeling shop.
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