Why do I need to set my frame rate for high speed?

Hawk Teflon

Hawk Teflon

Veteran
The FS700 just came in today! Huzzah!

I know this is probably a really basic question, but I was reading on this forum that you have to set your frame rate to 24, 30 or 60 before setting the camera to the high speed setting (let's say 240p for example). Why do I have to set it to 24p to shoot at 240p? Why can't I just set it to 240p? Am I missing something simple here? What difference will it make?
 
If you're shooting 24P make sure in the menu for S&Q you select 60P/24P and then 120P/24P or 240P/24P etc. If you don't match them you will have mixed framrates when going from 24P to Slow-motion framrates.
 
It's because you're not actually "shooting" high frame rates in the traditional sense. Basically, when you use the S&Q button, the buffer in the FS700 will fill itself up with the footage at the frame rate you specified, then kick out a final AVCHD version at one of the supported framerates. You don't get an AVCHD file that is 240p for instance. You get a 24p file that has the 240p already slowed down in it.
 
Right, so, basically, what you're setting is the timebase of your project. If you're going to be shooting and editing a 24p project, but you want to mix in some slow-mo, you'd want to set the FS700 to 24fps. If you're shooting and editing a 60i project, you'd have to set that first, before next setting what frame rate of slow-mo you want to record. Then it'll know to shoot at the high frame rate (240, etc) but write it out as a 24p or 60i file, for example. That file will then be ready to drop onto your 24p or 60i timeline, whichever you had set.
 
Good deal. Many thanks, guys. Still currently reading through the manual right now and that part was a little tricky to understand.

Also, have I just gotten too adjusted to shooting with DSLRs and the likes? I'm wanting to be able to increment my ISO settings instead of having just the three options. I know I can change them (low, medium, high), but changing them on the fly is pretty fantastic on the 5D.
 
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