Shooting at 9 fps? what to know?

[angelspushing]

hello, im planning on shooting K40 film indoors in an all white photography studio using interior lighting. i am intending on shooting mostly at 9 fps then doing an off the wall transfer running at 18 fps.

Do i need to tweek the aperature when shooting at this slow fram rate? Will it look differently when projected at 18 fps?


mike

[mattias]

Do i need to tweek the aperature when shooting at this slow fram rate?

that depends on how you measure the light. if your light meter is set/fixed to 18 fps you'll need to close the aperture one stop. if you use the internal meter or set your meter to 9 fps you won't have to change anything.

Will it look differently when projected at 18 fps?

not sure what you mean. it will obviously be twice as fast, but that's about it.

/matt

[angelspushing]

mattias,
yep , thats pretty much what i was asking.

thanks,
mike

[studiocarter]

Have everyone move r e a l s l o w

they look great otherwise and the TV has clear images, no scan lines.

[angelspushing]

so i set up some lights today and did a trial with the camera and its auto aperature without running any film. The camera's auto iris definitely shrinks down an f stop to 2 running at 9 fps as compared to wide open at 1.4 running at 18 fps.

If i dont use a light meter could i just trust the camera's onboard auto-exposure as long as there is a little bit of room and im not running up against the widest aperature? Ive never used this camera. its a Beaulieu 5008 S that i borrowed from a friend and it supposely works fine.

[mattias]

could i just trust the camera's onboard auto-exposure

you can probably trust it, but i can pretty much guarantee it won't give the the best possible results. the best way if you don't have a separate light meter is to use the camera as one. point it in several directions and see what the auto exposure tells you, then make a qualified guess, lock your iris, and shoot.

/matt