CAPTURING THE FRAME: FPS, Shutter Speed, CMOS/CCD Sensors, Rolling and Global Shutters

CAPTURING THE FRAME talks about frame rates, shutter speeds, shutter effects, CMOS sensors and CCD sensors and tries to answer the following questions:
What is FPS?
How do you create slow motion footage?
Why do we call it 'Shutter Angle'?
Are shutters physical?
What is the effect of a shutter angle?
What is Shutter Speed?
Rolling Shutter vs Global Shutter.
What is a Shutter Effect?
Does Shutter Angle affect Motion Blur?
CMOS vs CCD sensors.
How does a CCD sensor work?
How does a CMOS sensor work?

[@briancowan528]

excellent video.

[@custodianfile]

thank you

[@garrydolley]

Great video! But, why is it "typical" that the shutter speed should be the inverse of twice the frame rate? I'm new to this...

[@JaydenLawson]

Apparantly, when the 180º rule is implemented, it best mimics how your eye perceives the world - with a little motion blur. If you wave your hand in front of your face, your fingers aren't all that sharp - they're a little blurry. 180º mimics this, and will add a little motion blur to the frame. If you used a 360º shutter angle (for example, a shutter speed of 1/25, and the frame rate is 25 frames per second), then you'll have a lot more motion blur than what you see in real life. If you use a 90º angle, or less (for a frame rate of 25 frames per second, this would be a shutter speed of 1/100), this would capture less motion blur, and the result comes out a little jittery.

[@garrydolley]

@@JaydenLawson thanks for the explanation!

[@desistars7089]

​@@JaydenLawsonbrother can you tell me is that interlaced scanning or rolling shutter is same

[@sjhstone]

The final conclusion words about CCD vs. CMOS is a little bit outdated. Numerous improvements have been made to make CMOS perform better than CCD in image acquisition, including back-side illumination (which requires a flip of silicon wafer in chip manufacturing). CMOS doesn't suffer from smearing effect like CCD, and decent global shutter implementation is also available.

[@Ins1r]

Seems all those advancements for cmos didn't realy touch consumer electronics.

[@chrisw5742]

@@Ins1r yup where's the cheap global shutter cmos camera at? lol

[@blenderbachcgi]

@@chrisw5742 We had good CCD Cameras. But hey, CMOS is the future... -__-
Not it isn't...

[@blenderbachcgi]

@@GeraintDafis Film is indeed superior. It has nearly infinite resolution, amazing dynamic range, and crisp fine details. CCDs also have amazing dynamic range and crisp fine details, however they are limited to their pixels. CMOSes, on the other hand, are a disaster. They have a rolling shutter that damages anything even a bit fast, like propellers, fast moving vehicles, fast panning shots, and vibrations, which turns your video into either jello, or an artifact-y mess, or both. The dynamic range is atrocious, since it crushes your shadows and highlights, so you either end up with normal photos of the sky, but the ground is pitch black, or, the ground is normal, but the sky is pure white. We also can't forget how CMOSes smudge really tiny fine details, making things like paneling on houses, when they are further away, become a smudgy unrecognizable mess.
This isn't about artistic preference. This is about getting a good shot, or getting a shot that's sub-par. CMOSes are a cheap sensor which doesn't do the best job. It does work, but it does a very bad job of it. CCDs, are, how I call them, "Digital Film", they look amazing, and look like what you see in real life. CCDs were always the best Camera Sensor, and so far, they haven't been beat.

[@blenderbachcgi]

@@GeraintDafis To be fair. I have used both CMOS Cameras and CCD Cameras. I always had CMOS Cameras have that jello effect with the rolling shutter, but all the CCD Cameras always had a crisp frame each time. I also noticed that CMOSes had tons of noise and CCDs had almost none. I am saying this from personal experience, but I have had tons of CMOS problems, and CCDs always won. For me at least...
Photography is an artistic thing, but it is dictated by cold hard numbers being outputted from a digital sensor. I can be artistic as much as I want, but if my physical tech is setting me up for disaster, I can't do anything I want...
All I know is that I have had tons of problems with CMOS Cameras, and the CCD Cameras always worked wonders...