concerning 7d and 5d mk2

[zincozinco]

If i set them both on for ex 1/2000th and f5.6 will they adjust iso accordingly? I have just been hired for a video gig because my client likes my ideas and composition in photography, I told him that I have not done video before..... anyway im a bit lost in the "techie" part of the video stuff. Also what is the closest video setting on the 7d to match the 5d for editing purposes.... Its a Downhill MTB race.... God help me....!!! If anyone have a few hint it would be MUCH appreciated as I need to freeze the action and pan alot with a high aperture as I do not trust the AF.

- Video newbie.....

[Trey T]

AWB on 7D and 5DII works well for me.

use the 7D to pan. fast pan on 5DII is a no-no.

[zincozinco]

thanks trey but AWB is the same as iso? Also does anyone know a good rig to set the camera on a MTB?

[zincozinco]

another qustion why is fast pan a no no with the camera in manual? im guessing the shutter is the same for both models

[Trey T]

white balance is important when you edit video, a newbie can catch it right away. or else youll spend a lot of time learning how to match footage.

you can easily get freezing action shot w/ shutter as fast as 1/500s. use your 7D @60fps to do slow-motion. just like any cinematic-style shooting, you must have multiple angles of the subject as it moves.

look at vimeo.com and search tom guilmette, a very respectable cameraman, he has a video of mountain biking you will like.

[zincozinco]

cheers he have some great stuff

[Trey T]

today's camera w/ CMOS suffer from the syndrome of rolling shutter. I am not an expert on it but it seems like the bigger the chip/sensor, the more susceptible to rolling shutter.

when you pan fast , your subject at the top of the frame will be bent/curved.

try and do couple pan at different speed and judge it for yourself. you can tell right away w/ these monster size sensor that 5DII and 7D has.

http://img266.imageshack.us/i/windowrollingshutter.png/

[zincozinco]

i was just trying but the camera dont seem to autofocus - is that normal? dont they autofocus in "video mode" oh man i can see this all going to shi.....

[Trey T]

no autofocus. you have to pull focus manually.

yep, pan sucks on these giant sensors. however, low-light capturing is top-notch, no other camera that size in the world can do what these 5DII or 7D can do.

[zincozinco]

ah well its not broken... :)

[JohnJH]

7d/5d might not be the best choice for this application of video. chances are you'll be using longer lenses to follow the race, coupled with the constant panning and tilting, you'll be setting yourself up to have shots filled with rolling shutter artifacts