round sensor


Status
Not open for further replies.

zod

New Member
Mar 30, 2003
1,279
0
0
#1
lens is round
did anyone think how it will be like if there is a digital cam with round sensor?
meaning the image is not cropped at all.

round images... hmm...
 

zod

New Member
Mar 30, 2003
1,279
0
0
#3
special machines tt print on round paper?
hehe... more ex though
 

loupgarou

New Member
Sep 9, 2003
1,766
0
0
#4
first off, I suspect the bayer sensor to be built on a piece of silicon and sliced up just like most cpu's are built today, so if you slice it into circles there's a lot of loss material..

then again, I could be wrong, since people say making a big sensor is more costly, *or it could be a qc problem, ie: you have to discard more FF sensor due to dead pixels etc* just like the LCD industry
 

zod

New Member
Mar 30, 2003
1,279
0
0
#5
loupgarou said:
first off, I suspect the bayer sensor to be built on a piece of silicon and sliced up just like most cpu's are built today, so if you slice it into circles there's a lot of loss material..

then again, I could be wrong, since people say making a big sensor is more costly, *or it could be a qc problem, ie: you have to discard more FF sensor due to dead pixels etc* just like the LCD industry
yup, lots of material gonna be lost, but i's gonna be interesting
the only truly no crop cam ion the world
 

Mar 1, 2004
200
0
0
#6
Your assumption on loss of material is not really true. The amount of unused region in a silicon wafer is a function of the sixe of the uncut silicon, and the different sizes of the final product. Assuming that we are cutting squares and circeles of unit dimension, Erich Friedman (http://www.stetson.edu/~efriedma/packing.html) lists a list of known bounds on the enveloping circle. A quick check on the density of packing obtained when packign either circles or squares gives the following list:

# of units, circle, square
1, 1, 0.636
2, 0.5, 0.509
3, 0.646, 0.633
4, 0.686, 0.636
5, 0.685, 0.636
6, 0.666, 0.670

Meaning that when you want to pack 5 circles, you can be more dense than packing squares and vice versa when packing 6 items. Of course, the results willl vary when you consider packing different size circles and squares at the same time.

I bet the manufacturers know how best to minimize loss of material and base their decision on making standard sensor sizes on a multitude of other variables like aesthetics, packaging etc etc...

Some one asked a long time back why the lenses are circular and not rectangular. I guess the reasons are, yet again, similar.

Hope you have fun reading the web site mentioned above :)

cheers
 

Noir

New Member
Apr 3, 2003
306
0
0
42
gallery.repdetect.net
#7
zodnm said:
lens is round
did anyone think how it will be like if there is a digital cam with round sensor?
meaning the image is not cropped at all.

round images... hmm...
I think round sensors will produce round pictures which will look a little awkward. It's the way our eyes, which most of us have 2, see the world. Our field of vision is more horizontal than vertical. Therefore the rectangular sensors we have now, and stills/motion picture film formats and TV screens too, for that matter. Till evolution deems us necessary with only 1 eye, I guess it is quite unlikely that we will get round sensors?
 

zod

New Member
Mar 30, 2003
1,279
0
0
#8
i think it will be very interesting to capture round images
is there any filter out there that can fit to a slr and crop image to a circle?>
 

Status
Not open for further replies.
Top Bottom