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Mixing 24p and 60p

S

s_marcell

Hey guys,

I am shooting my very first videoclip in a couple of days and I have a question which I couldn't find any answers to.

I am usually shooting in 1080p at 24 frames per second. Now in the upcoming videoclip I would like to shoot some 60FPS stuff for slow motion at 720p. Now having known that I am looking for the "film look" I am setting my shutter speed to double the framerate. However when changing from shutter speed 50(24p) to something around 120(60p) the 2 footage will look different because of the more/less light coming in.

What do you suggest considering that I am probably going to use an ND filter and will be shooting outside in broad daylight with a lot of sunlight?

Thank you very much in advance,

Marcell
 
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Your shutter speed will be fixed at 50 or 125.

So you can adjust the exposure using the ND filter, aperture and ISO.

Hopefully your ND filter is a variable one, in which case adjust it to match the light for the two shutter speeds.

If it's not a variable one or it is but you can't get the exposure match just right then adjust the aperture and/or ISO too. You should be able to get the exposure looking the same when shooting at a shutter speed of 50 vs 125.

If you find the match is not perfect when you review your footage at home, then you should be able to correct in post - provided the difference is not extreme or you have blown footage.
 
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IndiePaul said:
Your shutter speed will be fixed at 50 or 125.

So you can adjust the exposure using the ND filter, aperture and ISO.

Hopefully your ND filter is a variable one, in which case adjust it to match the light for the two shutter speeds.

If it's not a variable one or it is but you can't get the exposure match just right then adjust the aperture and/or ISO too. You should be able to get the exposure looking the same when shooting at a shutter speed of 50 vs 125.

If you find the match is not perfect when you review your footage at home, then you should be able to correct in post - provided the difference is not extreme or you have blown footage.
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Thank you for your reply! I will try this out!
 
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I know about the Exposure Triangle. The only thing is that I don't wanna change my aperture because I want to keep that nice shallow depth of field and I also like to keep the ISO as low as possible.
 
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