This is pretty cool! How a DSLR works in slowmotion

[GhettoDetonator]

How a dslr camera works in slow motion!
https://www.youtube.com/watch?v=CmjeCchGRQo

[ShadowCaptain]

so.. like exactly how I thought

[Geekazoid]

That's quite cool! B)

[Tam3n]

I had thought that the shutter would just move faster for shorter exposure, but the slit is getting narrower instead. Cool stuff.

[cesrai]

so.. like exactly how I thought

Yeah sure.

[ShadowCaptain]

Yeah sure.

 

Just take off the lens and look inside you can pretty much see it with the naked eye

 

i have pretty good knowledge of cameras work

 

They save data to the card line by line so thats why the sensor can record the image as the slit moves over the sensor, it just buffers it into the memory and dumps it to the card when its complete

[cesrai]

Just take off the lens and look inside you can pretty much see it with the naked eye

 

i have pretty good knowledge of cameras work

 

They save data to the card line by line so thats why the sensor can record the image as the slit moves over the sensor, it just buffers it into the memory and dumps it to the card when its complete

Tell how do you convert the photons to a picture ??? like when the light hits the sensors how does it convert it to a image that I can view ??

[ShadowCaptain]

Tell how do you convert the photons to a picture ??? like when the light hits the sensors how does it convert it to a image that I can view ??

 

basically as photons of light hit the sensor, they generate electrons, and they are stored as charge. The camera records numbers for each part of the sensor, so like the brightness and colour of that pixel and then stores that on the memory card - this is worked out from the different amounts of charge at each photosite 

 

A digital image is basically a file that tells the camera/computer which pixels should be which colour and which brightness

[cesrai]

basically as photons of light hit the sensor, they generate electrons, and they are stored as charge. The camera records numbers for each part of the sensor, so like the brightness and colour of that pixel and then stores that on the memory card - this is worked out from the different amounts of charge at each photosite 

 

A digital image is basically a file that tells the camera/computer which pixels should be which colour and which brightness

Nice, thanks this explanation is pretty good.

[ShadowCaptain]

Nice, thanks this explanation is pretty good.

 

Its about the best I can do simply haha and its not that great

 

good video here

[Soplias]

Just take off the lens and look inside you can pretty much see it with the naked eye

 

i have pretty good knowledge of cameras work

 

They save data to the card line by line so thats why the sensor can record the image as the slit moves over the sensor, it just buffers it into the memory and dumps it to the card when its complete

Shit, I thought you were being sarcastic with that first comment, but as it turns out you really do know how it work  

[cesrai]

Shit, I thought you were being sarcastic with that first comment, but as it turns out you really do know how it work

Sarcasm ???? @ShadowCaptain is always serious and at work.

[ShadowCaptain]

Shit, I thought you were being sarcastic with that first comment, but as it turns out you really do know how it work

 

haha no I do know about it

 

Not an expect by any stretch, but since im a bit of a photographer I have taken time to learn about it

 

 

Sarcasm ???? @ShadowCaptain is always serious and at work.

 

 

TITS

 

I am always serious

[ShadowCaptain]

double post oops 

[Bsmith]

haha no I do know about it

Not an expect by any stretch, but since im a bit of a photographer I have taken time to learn about it

TITS

I am always serious

TRICK QUESTION!

Does the dslr sensor make use of the particle, wave or waveparticle concept to capture the images/files?

(Answer will come after dinner)

[ShadowCaptain]

TRICK QUESTION!

Does the dslr sensor make use of the particle, wave or waveparticle concept to capture the images/files?

(Answer will come after dinner)

 

Wave particle duality huh

EDITING

 

 

as far as I know, cameras were a big piece of evidence in showing light behaving like a particle, if the particle behaved like a wave, then it would illuminate the photosites uniformly, but a digital camera has areas that are hit strongly and some that are not hit at all, showing that light can behave like a particle

 

But AFAIK that is why they are referred to the "bits of light" as photons

 

However when firing a laser at a sensor there is interference, which would not happen unless light was indeed a wave, so... yeah 

 

I can only answer wave particle duality, I am not a physicist

 

 

 

I might be wrong completely this is just from what I remember reading about/school like 10 years go

[Ertman]

Kinda figured how this worked, but I wasn't sure on the specifics of how the shutter actually functioned.

[.spider.]

Tell how do you convert the photons to a picture ??? like when the light hits the sensors how does it convert it to a image that I can view ??

After the exposure the camera starts the readout of the sensor.

After reading the sensor out the charge of each pixel is getting amplified, the strength of the amplification is determined by the selected ISO.

The next step is to convert these analog charges to digital values this is done by an ADC.

Now it is possible to "view" an image but it will look extreme greenish because the last step the debayering isn't done.

Each pixel is only capable of seeing brightness because of that there is a tiny color filter placed in front of each pixel.

50% of all pixels are only seeing green, 25% only blue and 25% only red.

(The eye is more sensitive to green light that's why green is overrepresented the pattern of the filter is called bayer matrix)

Now an algorithm interpolates an RGB triple for each pixel and the image processing is done.

(The debayering isn't needed in cameras with foveon sensors or 3 chip cameras)

[Bsmith]

Wave particle duality huh

EDITING

as far as I know, cameras were a big piece of evidence in showing light behaving like a particle, if the particle behaved like a wave, then it would illuminate the photosites uniformly, but a digital camera has areas that are hit strongly and some that are not hit at all, showing that light can behave like a particle

But AFAIK that is why they are referred to the "bits of light" as photons

However when firing a laser at a sensor there is interference, which would not happen unless light was indeed a wave, so... yeah

I can only answer wave particle duality, I am not a physicist

I might be wrong completely this is just from what I remember reading about/school like 10 years go

You are right!

(Meant duality but somehow ended up with waveparticle...)

Experienced it myself a while back, took a photo at evening with a lamp post behind me, i didnt see any light form it through the viewfinder directly, but on the picture(1-15sec) dahaha, light at the top of my image which i couldnt explain back then. Since the lamp post was behind me, but the height did it.

To bad i deleted(? IIRC) it already, otherwise i could have shown it.

(Or try it yourself)

 

EDIT:

(back on pc)

or adding the term/idea of the interference patern might dissort the particle idea(altough not likely)

[wolfgang]

Neat video. Not used to Gavin being so scientific.

[.spider.]

Bayer pattern visible, the raw image data without processing.

 

After debayering