Variable Frame Rate
You can record smooth slow motion video and quick motion video by using a frame rate for recording that differs from the recording frame rate.
Slow Motion Video (Overcrank Recording)
Set a number of frames that is higher than the recording frame rate of the [Rec Quality].
For example: When recording at 48 fps when set to a 24.00p [Rec Quality], the speed is halved.
Quick Motion Video (Undercrank Recording)
Set a number of frames that is lower than the recording frame rate of the [Rec Quality].
For example: When recording at 12 fps when set to a 24.00p [Rec Quality], the speed is doubled.
Variable frame rate video with a recording quality with the ALL-Intra image compression system cannot be recorded to SD cards. Use CFexpress cards. |
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Set the recording mode to [].
Set the mode dial. (Selecting the Recording Mode)
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Set [Rec. File Format] to [MOV].
[] [] [Rec. File Format] [MOV]
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Select a recording quality with which you can use [Variable Frame Rate] recording.
[] [] [Rec Quality]
Items with which you can use [Variable Frame Rate] are indicated as [VFR available].
Recording qualities with which you can use [Variable Frame Rate] recording ( List of Recording Qualities That Enable Special Videos to be Recorded)
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Set [Variable Frame Rate].
[] [] [Variable Frame Rate] [ON]
Press to switch between [ON] and [OFF].
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Set the frame rate.
Rotate , or to select a numeric value, then press or .
Available Frame Rate Setting Ranges
The frame rate you can set differs depending on the [Rec Quality] settings.
[Rec Quality] |
Frame rate |
C4K/4K video that uses the Long GOP image compression system |
1 fps to 120 fps |
5.7K video/C4K/4K video that use the ALL-Intra image compression system |
1 fps to 60 fps |
FHD video that uses the Long GOP image compression system |
1 fps to 300 fps |
FHD video that uses the ALL-Intra image compression system |
1 fps to 240 fps |
Shutter Speeds When Recording Variable Frame Rate Video
When recording variable frame rate video, the minimum shutter speed changes depending on the set frame rate.
Frame rate |
Minimum shutter speed |
1 fps to 2 fps |
1/8 of a second |
12 fps |
1/13 of a second |
15 fps |
1/15 of a second |
20 fps |
1/20 of a second |
21 fps to 25 fps |
1/25 of a second |
26 fps to 30 fps |
1/30 of a second |
32 fps to 37 fps |
1/40 of a second |
45 fps to 50 fps |
1/50 of a second |
52 fps to 60 fps |
1/60 of a second |
62 fps to 75 fps |
1/80 of a second |
84 fps to 100 fps |
1/100 of a second |
105 fps to 125 fps |
1/125 of a second |
132 fps to 156 fps |
1/160 of a second |
165 fps to 200 fps |
1/200 of a second |
204 fps to 240 fps |
1/250 of a second |
250 fps to 300 fps |
1/320 of a second |
You can filter to show just the recording qualities where [Variable Frame Rate] can be used. ([Filtering]) We recommend using a tripod when recording images with [Variable Frame Rate]. Focus mode switches to MF. (When using an interchangeable lens with no focus ring, you cannot set focus with MF.) The camera automatically focuses when [AF ON] is pressed, but only before starting recording. Audio will not be recorded during variable frame rate recording. When set to a frame rate exceeding 60 fps, there may be some deterioration in recording quality. When [Dynamic Range Boost] is set to [ON], a frame rate exceeding 60 fps cannot be set. When [Image Area of Video] is set to [PIXEL/PIXEL], a frame rate exceeding 120 fps cannot be set. When [Synchro Scan] is set to [ON], a frame rate exceeding 240 fps cannot be set. When the following function is being used, [Variable Frame Rate] is not available: – [Filter Settings] |