If lenses are round.............
Jul 20, 2014 21:45:36 #
Jul 20, 2014 22:04:46 #
DavidPine
Loc: Fredericksburg, TX
Surely, it wouldn't have anything to do with the sensor. Wouldn't pp be fun if we had a round sensor. Why aren't lenses rectangular?
Jul 20, 2014 22:18:07 #
Racmanaz
Loc: Sunny Tucson!
DavidPine wrote:
Surely, it wouldn't have anything to do with the sensor. Wouldn't pp be fun if we had a round sensor. Why aren't lenses rectangular?
LOL ya that would be fun.
Jul 20, 2014 22:35:35 #
lukan
Loc: Chicago, IL
What a great point... Except light likes a lack of diffractive elements if prismatic effects like CA and vignetting are to be minimized. Rectangular elements accentuate all the bad things for perfect pictures!
Jul 20, 2014 23:17:22 #
Racmanaz wrote:
then why....
Well now, that's easy to answer:
Round pictures would roll out of the frames! :D
Jul 20, 2014 23:18:10 #
DavidPine
Loc: Fredericksburg, TX
LFingar wrote:
Well now, that's easy to answer:
Round pictures would roll out of the frames! :D
Round pictures would roll out of the frames! :D
:thumbup: :thumbup:
Jul 20, 2014 23:25:06 #
All lenses project a circular image. There is a great photographer named Emmet Gowin who used a lens meant for a 4x5 camera on an 8x10 camera so he got circular images which were the full projection of the image from the lens. Cameras are designed to crop the image from the lens into a rectangle or a square. I would imagine rectangular lenses would be very difficult to design and build.
Jul 20, 2014 23:37:35 #
Racmanaz
Loc: Sunny Tucson!
JohnSwanda wrote:
All lenses project a circular image. There is a great photographer named Emmet Gowin who used a lens meant for a 4x5 camera on an 8x10 camera so he got circular images which were the full projection of the image from the lens. Cameras are designed to crop the image from the lens into a rectangle or a square. I would imagine rectangular lenses would be very difficult to design and build.
Does this mean that all cameras have "cropped" sensors? ;)
Jul 20, 2014 23:46:54 #
Racmanaz
Loc: Sunny Tucson!
This was someones comment on another webpage.... "Camera lens are circular as there is less distortion of the light through the lens as compared to rectangular lenses. Distortion of light can result in blurry pictures and shifted colors. Also, I think circular lenses are less expensive to manufacture than rectangular lenses."
Jul 20, 2014 23:47:08 #
DavidPine
Loc: Fredericksburg, TX
Racmanaz wrote:
Does this mean that all cameras have "cropped" sensors? ;)
:thumbup:
Jul 21, 2014 01:26:26 #
Jul 21, 2014 01:29:31 #
Jul 21, 2014 06:22:49 #
If sensors were round...You could then say "I made this photo in a Round About Way"
Jul 21, 2014 06:54:05 #
round photo - taken with a Sigma 9mm Fisheye using the D800. The Sigma is a crop frame lens
Jul 21, 2014 06:55:42 #
cmc4214
Loc: S.W. Pennsylvania
Racmanaz wrote:
Does this mean that all cameras have "cropped" sensors? ;)
I would say so
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