best way / advice use arri wireless on 5d

[richard bellon]

hi

 

I got a shoot on wednesday and they are using a canon 5d with canon lenses.

this will be my first time doing this and wondering what is best way to attach arri

wireless motors or heden motors?

 

anyone with experience of this as i know this is gonna be a tough on on focus

 

regards

richard

[Sydney Seeber]

you have to use the lens gear adapters, for the most part each Canon lens has a unique adapter... Lots of places rent them now, they're insanely cheap. The cool ones attach together as two halves via magnets. Definitely my favorite, but they cost a little more. Sometimes the matte box is enough to keep the camera from moving when the motor is in motion, but I'm of the opinion that a lens stiffener is almost a requirement.

[richard bellon]

hi Sydney

 

thanks for the reply,

would those lens stiffners also be able to stop the focus ring rotating continuosly 360'

regard

richard

[Sydney Seeber]

no, they just attach the lens to the rail system

[Peter Hoare]

You will need to add a lens gear to the lens, you can get them from anywhere, Redrock make them, Zacuto etc etc.

 

Just remember, that if its a modern lens with an infinitely rotating focus ring, then the auto calibrate function won't work, as there is nothing for the motor to detect. If its a normal slr lens with hard stops on the focus rings, the stronger motors may well damage them anyway, so it may be best to manually calibrate if possible.

 

Just bear in mind, that these newer lenses which have infinite focus rings never behave well with remotes. It seems that the numbers in the little window turn at a different rate to the focus ring, so it looks to me like the two rings are not directly connected. If you do a fast focus move, the two rings slip away from each other, and your marks move, so it is quite difficult to repeat marks, just make sure you keep your focus moves slow, and check often because it will slip out eventually.

 

These lenses were never designed to be focused accurately with the ring like this, they are primarily designed as auto focus lenses, but have that ring on the outside so you can adopt the 'Twist it til' its sharp' approach if you wan't to.

 

 

Hope this helps,

 

 

Pete.

 

 

Hocus Focus

[richard bellon]

Thanks all for the advice will ask at rental company for those rings at least got a check out day tomorrow

Regards