Motion mount exposure tech questions , high FPS etc

[Les Dittert]

The motion mount is able to shutter in two ways : full on/full off , and ramp on/ramp off.
This gives the different looks for pans, etc.
My question is how fast can it do this? In other words what frame rates will it work up to ?

Obviously, higher frame rates don't exhibit the imaging defects such as the classic 'cartwheel backwards', etc, but does MM work on < 1/48 exposures as well ?
How about 1/200 sec ?

Thanks

 

[Justin O'Neill]

120fps is the max frame rate you can shoot at with soft shutter or square shutter. Minimum shutter angle is 22.5 degrees.

 

[Zeke Burgess]

Shuttering modes work up to 120fps with shutter angles of 22.5 to 194.4 degrees for soft shutter and 22.5 to 180 for square shutter.

 

[Phil Holland]

Just saw this thread Les.

Please take a look here for my Motion Mount usage notes:
http://www.reduser.net/forum/showthread.php?105885-RED-DSMC-Motion-Mount-has-arrived!&highlight=

Specifically my findings on this post: http://www.reduser.net/forum/showthread.php?105885-RED-DSMC-Motion-Mount-has-arrived!&p=1261509&viewfull=1#post1261509

So while you can shoot at 120fps with the shutter modes, be aware if you are dealing with extremely fast moving subjects or performing a bit whip pan you could potentially see artifacts in the Soft or Square Shutter Modes past 75fps. What I've found is that there's a correlation to the "strobe safe" guidelines listed in the manual for each resolution and this effect.

It does not happen in ND Only mode btw.

 

[Les Dittert]

Thanks for the info gentlemen. Phil, I guess the modulator is getting a bit on the edge above 75 then.