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 Test Results for Second Shooter Accuracy 
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Joined: Fri Mar 18, 2016 10:09 am
Posts: 4
Post Test Results for Second Shooter Accuracy
Hi all,

I had been having problems with the accuracy of my Second Shooter (as evidenced in another thread in this forum). I made great strides in getting the SS to track better by giving my CineSlider a tune-up and adjusting the Lash Compensation. Although not perfect, it is pretty impressive now.

I threw together a 3-minute video that shows my tests regarding the accuracy and repeatability of the Second Shooter.

You might find this interesting...
https://vimeo.com/159949340


Tue Mar 22, 2016 6:40 am
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Joined: Wed Jan 20, 2010 4:50 pm
Posts: 561
Post Re: Test Results for Second Shooter Accuracy
Interesting. I like calculations and I estimate this equates to a range of about 0.25 degrees of pan angle.

The seeming randomness I'd put down to perhaps some rounding errors in the software, (it may be using integer math rather than floating point) combined with a relatively low gear ratio in the mechanism, and microstepping that isn't extremely fine.

Whether this is significant depends on the lens focal length, as you point out, but mostly it matters if it is consistent for multiple passes, which it seems to be. So it's good enough...


Wed Mar 23, 2016 12:38 am
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