Frame Rate, Shutter & Resolution

Capture conditions are set using Framerate, Shutter, Resolution in the Record setting panel on the right side of the screen.

Item	Contents
Framerate [fps]	The number of frames captured per second
Shutter speed [sec]	The exposure time per frame
Resolution [pixel]	The image size (width x height)

Setting procedure

Setting frame rate → resolution → shutter speed, in that order, reduces the chance of unintended automatic changes.

1. Choose the frame rate from the Framerate [fps] list.

   

2. Choose the image size from the Resolution [pixel] list. The higher the frame rate, the smaller the selectable height (the number of pixels in the vertical direction).

   

3. Choose the shutter speed from the Shutter speed [sec] list. You can choose 1/fps (open: exposing for the entire duration of one frame) or a shorter shutter speed.

   

Behavior when changing the frame rate

Changing the frame rate automatically changes the resolution and shutter speed as follows.

	When raising the frame rate	When lowering the frame rate
Resolution	Changes to the maximum resolution settable at the new frame rate	No change
Shutter speed	Changes to 1/fps (open)	Changes to 1/fps (open)

Example: Starting from 1,000 fps with a shutter speed of 1/4000, changing to 2,000 fps sets the resolution to the maximum value for 2,000 fps, and the shutter speed changes to 1/fps.

Tip

Changing the frame rate always resets the shutter speed to 1/fps. Set the shutter speed after you have decided on the frame rate.

Note

For details on valid combinations of frame rate, resolution, and shutter speed, and the formulas involved, see the SDK manual.