Aperture • physical light
A lower f-number lets in more light at the same shutter duration. At 14mm, this lens can open to f/4.
CAMERA LAB / CONCEPT LESSON
ISO: brightness without extra light
Raising ISO changes amplification and output brightness. It does not open the lens or extend the exposure.
Canon EOS R50 VRF-S 14–30mm Verified endpoints
How the pieces connect
With little captured light, the signal is weak relative to noise. Brighter amplification can reveal grain; camera processing also affects what you see.
Apply it to your camera
Improve actual lighting or collect more light when practical. Use the ISO needed for your shot, and judge the real recording rather than this illustrative grain.
Open the related labTry a change. See the relationship.
CURRENT4K / 25p14mm f/4 1/50 ISO 400
Aperturef/4
Shutter1/50 s
ISO400
Focal length14mm
Recording4K · 25 FPS
Illustrative preview. Your camera’s results will vary.
What these settings change
Shutter • time collecting light
Each frame collects light for 1/50 second. A longer exposure collects more light and more movement.
ISO • output brightness
ISO 400 changes output brightness, not incoming light. With little captured light, noise can become easier to see.
Physical exposure +0.00 stopsISO brightness +0.00 stopsCombined brightness +0.00 stops