Epic Speed Ramping & Slomo

[Mark Pedersen]

I have a shoot coming up for my EPIC X (when it arrives) where we want to do speed ramping from 24fps to as much as 300fps.

Has speed ramping been enabled yet in firmware?

Also, could someone provide guidance on shooting slomo 120fps at 5K? Ideal shutter angle, etc.? Also if I'm shooting at T2, how many footcandles would I need to properly expose a grey card at 120fps?

What about 300 fps?

Just trying to get a sense of the issues I might encounter trying to shoot talent in a wide variety of exterior and interior set ups.

Any info appreciated!

M

[Mark Pedersen]

No one willing to share any information here???

Geez..

M

[wade muller]

+ 1 about the ramping question

[Stephen Lovett]

Hi Guys, Ramping is not enabled in the current firmware builds.

Mark if I remember correctly your Red's number was pretty close to mine, and I've already got my X (as well as the M) so yours should be up soon.

Cheers,

Steve

[Paul J Steinberg]

Asking the 'best' shutter angle is like anything in photography. It's subjective. Shoot tests and see what you like. I'm guessing that may explain the lack of replies. Generally a 180 degree shutter is used but that may not be what you want for your shot.

The amount of light you need is going to be based on your frame rate and shutter angle. 120fps @ 180 degree shutter is about a 2 stop loss compared to 24fps @ 180 degree shutter. 300fps is 3 1/2 stops down with the same shutter angle.

[Robert Berger]

I have been shooting 300fps on a 1/600 shutter time and put the iso to 320 to keep the noise down. It was a rollercoast ride and it was beautiful !!! I shot with the Epic-M from cam-a-lot and waiting for my Epic-x. Best Robert
R1 1265, Epic-X very soon.

[axel ebermann]

I would suggest to shoot at the highest frame rate you need and do the speed ramp in post.
that will give you much more control over timing.