CF24 mode v. Varicam shutter speed

[Guest]

There were some concerns about the shutter speed of the CF24 mode being too fast.

It should be fine. Varicam shoots at 60 fps and can't set the speed slower either. So the temporal effect should be the same.

[Neil Rowe]

...im not sure what your saying there,, the varicam can shoot at speeds well below 60 fps, and has an adjustable shutter speed which will also go well below 1/60th.

[Guest]

What I am saying is that if you want to shoot 24p with Varicam, it does not shoot 24p; it shoots 60p, which you need to convert to 24p by eliminating frames. So the slowest shutter you can have on either the Varicam 24p or FX1 CF24 is the same, 1/60 sec.

[Barry_Green]

That's simply not true. *The VariCam DOES shoot 24P. *It records 60 frames to tape, but it runs the CCD at 24Hz. *The VariCam can shoot any frame rate from 4 to 33 fps, plus 40 and 60. It records "padding" frames to round it out to 60 on tape, but it actually shoots at the proper frame rate in-camera.

The Sony ONLY shoots 60i. *Its CineFrame 24 is a field-blended simulation, which is *nothing* like the VariCam's true 24P.

[David Jimerson]

That, and the shutter speed isn't dependent on the frame rate, except that your shutter speed can't be slower than your frame rate.