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View Full Version : Call me stupid... but how does the camera know whats shot portrait or landscape?

Jamesbuk
03-01-2009, 17:08
Hey guys and girls...

Just sitting here whilst my computer auto rotates a recent batch of images (by exif flag or something) and it left me wonder, how does the camera know what way round I'm holding it? Its made me confused! :p

Regards, James
StewartR
03-01-2009, 17:10
It's got a little gizmo in it that detects which way up the camera is. Imagine something likea ball bearing in a box, with electrical contacts on each side of the box. Whichever circuit is completed by the ball bearing tells the camera which side of the box is at the bottom.
chris321
03-01-2009, 17:13
It's got a little gizmo in it that detects which way up the camera is. Imagine something likea ball bearing in a box, with electrical contacts on each side of the box. Whichever circuit is completed by the ball bearing tells the camera which side of the box is at the bottom.

What he said! It's called an accelerometer (http://en.wikipedia.org/wiki/Accelerometer) if you want to know more about it!
mr_pants
03-01-2009, 17:14
It's got a little gizmo in it that detects which way up the camera is. Imagine something likea ball bearing in a box, with electrical contacts on each side of the box. Whichever circuit is completed by the ball bearing tells the camera which side of the box is at the bottom.

That's rubbish, as everyone knows.

Inside the camera is a number of very tiny pixies who paint what they see when the shutter opens. They also make a note of whether they were sitting upright or lying on their sides when they did the painting. Anyone who says different is a heretic :lol:
Jamesbuk
03-01-2009, 17:25
Ah cheers guys :p and cheers for the link Chris321 :thumbs:

Lol at Mr Pants :p

regards, James
NickTB
03-01-2009, 18:00
That's rubbish, as everyone knows.

Inside the camera is a number of very tiny pixies who paint what they see when the shutter opens. They also make a note of whether they were sitting upright or lying on their sides when they did the painting. Anyone who says different is a heretic :lol:

BURN HIM!!!
lawrie29
03-01-2009, 18:21
That's rubbish, as everyone knows.

Inside the camera is a number of very tiny pixies who paint what they see when the shutter opens. They also make a note of whether they were sitting upright or lying on their sides when they did the painting. Anyone who says different is a heretic :lol:

It's one Imp, not lots of pixies. Thanks Sir Terry.

http://wiki.lspace.org/wiki/Iconograph
cyclone
03-01-2009, 18:26
You're stupid








sorry couldn't resist.
lawrie29
03-01-2009, 18:41
Who Sir? Me Sir?
crt-d
03-01-2009, 20:52
they used to be called mercury tilt switches....same thing, but they don't use mercury anymore!
DiddyDave
03-01-2009, 20:56
It's one Imp, not lots of pixies. Thanks Sir Terry.

http://wiki.lspace.org/wiki/Iconograph

I think you'll find they ARE Pixies, but in FF cameras (such as the D3) they are big fat buggers who were kicked out of the Crop camera department; as a result of them being bigger, they made the sensor bigger too (hence FF) but with the same number of Pixies (well the D3 compared to a D2Xs anyway) and as each Pixie has more surface area to paint onto they get more detail - which we see as better high ISO

Simple really

:thumbs:

DD
..MD..
03-01-2009, 21:04
see and i thought it was fairys..

:lol:


md:thumbs:
cyclone
03-01-2009, 22:10
Who Sir? Me Sir?

No no, the OP said call me stupid, so I did. Can't help myself sometimes.
lawrie29
03-01-2009, 23:09
DOH!
Raymond Lin
03-01-2009, 23:21
The accelerometer is in everything, Iphone, ipod touch, N95, N96, N97.
chris321
03-01-2009, 23:27
The accelerometer is in everything, Iphone, ipod touch, N95, N96, N97.

Not to mention their most vital role, THE WII!
Byker28i
04-01-2009, 07:36
I think you'll find they ARE Pixies, but in FF cameras (such as the D3) they are big fat buggers who were kicked out of the Crop camera department; as a result of them being bigger, they made the sensor bigger too (hence FF) but with the same number of Pixies (well the D3 compared to a D2Xs anyway) and as each Pixie has more surface area to paint onto they get more detail - which we see as better high ISO

Simple really

:thumbs:

DD

Ah so cameras are recorded in mega pixies not pixels. I see.
vibrantcolour
04-01-2009, 14:07
:) Megapixies.

Its amazing what a spelling mistake can do.
tarmac_chaser
04-01-2009, 14:38
Call me stupid

Ok, stupid! :thumbs: