How can DSLR create motion blur without any mechanical movement inside?

[friano75]

Hello everyone

Short question maybe I'm stupid but...
How the ... can DSLRs create motion blur in LiveView without any mechanical movement inside.
my thoughts;
1. they take a lot more frames a second in movie mode and calculate them together. (Not really)
2. In camera analog hardware that calculate that average. (maybe)
3. the motion blur is calculated only with the difference of two frames (possible)

Does anyone know that?
Thank you

[Rewind]

What the... Jesus, man, are you serious?
I mean... Well i think i've just awaken in wrong world ))

http://en.wikipedia.org/wiki/Motion_blur

[painya]

Hello everyone

Short question maybe I'm stupid but...
How the ... can DSLRs create motion blur in LiveView without any mechanical movement inside.
my thoughts;
1. they take a lot more frames a second in movie mode and calculate them together. (Not really)
2. In camera analog hardware that calculate that average. (maybe)
3. the motion blur is calculated only with the difference of two frames (possible)

Does anyone know that?
Thank you

It has to do with shutter speed. Because each image isn't frozen perfectly (because of the low shutter) the look of blur is apparent. If you tried a test recording a movie with a 1/30 shutter speed vs a 1/4000 there would be a huge difference in motion blur. The 1/4000 footage would be super choppy.

[engardeknave]

Yeah, my eyes do that too. It's weird.

[friano75]

I think I know what motion blur looks like but how does the digital camera produce that? Yes with low shutter speeds that is not what I wanna know.
Example:
I take a picture handheld with an analog SLR and low shutter speed (10s). Moving the camera these 10 seconds The hole image will be blurred.
The digital camera can't do that as simple as the SLR. There is a AD-converter that doesn't work as a film and the processor too. Both have a certain frequency and can't capture all 10 seconds at once. How the name says "digital camera".

[djzigoh]

Mmmmm as I understand it... When you set the parareters and press the shutter button the mirror and curtain comes up and the sensor get exposed for the specified time upon set... In that time the sensor collects light . After the curtain close the processor use that information to process that information to get an image. Faster shutter speeds give you  frozen pics,  slow shutter speed  gives you blur on moveing objects. With video is the same thing but the curtain and mirror remains open, the sensor "start and stop" each frame at the specified rate.

This is how I understand it...  I'm not an specialist or anything

[painya]

Like this? How is it framed?