Which Shutter Speed Lets in the Most Light?

The longer the camera shutter is left open, the more light that is allowed to enter the camera; this is achieved by using slower shutter speeds (such as 1/60).

What is a good shutter speed for daylight?

If you're taking pictures on a bright, sunny day, you'll need to use shutter speeds more like 1/500 second or 1/1000 second. That's the only way to avoid capturing an “overexposed” photograph — one that's too bright. A shutter speed of 1/640 second, taken after sunrise the next day.

Which f stop lets in the most light?

The higher the f-stop number, the smaller the aperture, which means the less light enters the camera. The lower the f-stop number, the larger the aperture, the more light enters the camera. So, f/1.4 means the aperture is pretty much all the way open, and lots of light is entering the camera.