If lenses are round.............
Jul 21, 2014 07:23:28 #
Jul 21, 2014 08:24:59 #
Jul 21, 2014 08:54:22 #
Sorry, I disagree with bull drink water. Lenses are round, pictures are rectangular because pi=r2 (pie are square for the math challenged). :D :D
Jul 21, 2014 10:47:08 #
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.
Yes, but circular sensors would be easy.
Jul 21, 2014 10:51:05 #
bull drink water wrote:
because "pi" are not square, pie are round.
Some pi are square:
Jul 21, 2014 11:58:11 #
Jul 21, 2014 12:21:38 #
Jul 21, 2014 12:50:18 #
GoofyNewfie wrote:
Some pi are square:
Thanks. I always thought "pi are round". Shows what I know. :?:
Jul 21, 2014 13:33:34 #
Jul 21, 2014 14:47:25 #
Does a cow have square teats or a calf square lips? OK, what's the point? OMG, is a point square or round?
This thread is like going for a ride with kids in the back seat, screaming, "Are We There Yet?
All very funny but where do I place all this wisdom or lack-there-of! LOL :-)
R/ The PhotogDog
This thread is like going for a ride with kids in the back seat, screaming, "Are We There Yet?
All very funny but where do I place all this wisdom or lack-there-of! LOL :-)
R/ The PhotogDog
Jul 21, 2014 14:51:43 #
GoofyNewfie wrote:
Some pi are square:
Burp! That was gooooood! :lol:
R/ The PhotogDog
:thumbup: :thumbup: :thumbup: :thumbup: :lol:
Jul 21, 2014 16:07:58 #
On April 1st, 2010, Rokton, a nonexistent company, announced plans to make a circular image sensor with a diameter of 43 mm, big enough to cover a full-frame 24x36 mm image. The announcement claimed that youll be able to capture the full scope of your lens, and then crop as you see fit, rather than making do with less image than youre capable of taking,. . . the ultimate imaging device, the human eye, is kind of round, lenses are round, and the most common photographic subject in the world, the human face, is often round too.. . . its only logical that we start using round image sensors. This was an April fools joke, but why is a round image sensor a bad idea?
Answer. A typical lens is designed to generate a high-quality image in the central 24x36 mm area. Outside this area, image quality drops off quickly. Also, a circular sensor would require a bigger shutter and a bigger mirror (both would have to be squares with 43 mm sides) as well as a bigger pentaprism, resulting in a bigger camera. Consider also that monitor screens and sheet paper are rectangular, which means that somewhere along the line, the circular image would have to be cropped to a rectangle, effectively wasting parts of the circular image sensor.
Answer. A typical lens is designed to generate a high-quality image in the central 24x36 mm area. Outside this area, image quality drops off quickly. Also, a circular sensor would require a bigger shutter and a bigger mirror (both would have to be squares with 43 mm sides) as well as a bigger pentaprism, resulting in a bigger camera. Consider also that monitor screens and sheet paper are rectangular, which means that somewhere along the line, the circular image would have to be cropped to a rectangle, effectively wasting parts of the circular image sensor.
Jul 21, 2014 17:58:28 #
Racmanaz wrote:
Does this mean that all cameras have "cropped" sensors? ;)
:thumbup: Nice! Thanks a lot. So I wasted my money on a "full Frame" camera when it's in reality a cropped frame.
Jul 21, 2014 18:37:43 #
shutterbob wrote:
:thumbup: Nice! Thanks a lot. So I wasted my money on a "full Frame" camera when it's in reality a cropped frame.
It looks like you are needing to move up to medium format and be done with it. The FX 35mm format is better than most Photogs can process or comprehend. That is why Adobe make the "Big Bucks!" Photographers just don't get it right the first time out, and that includes me also!! Also, you might consider "Large Format" and bypass the whole kit & caboodle! Now your cooking with gas Photog!! LOL
Cheers/ The PhotogDog
:lol:
Jul 21, 2014 18:59:30 #
ThePhotogDog wrote:
It looks like you are needing to move up to medium format and be done with it. The FX 35mm format is better than most Photogs can process or comprehend. That is why Adobe make the "Big Bucks!" Photographers just don't get it right the first time out, and that includes me also!! Also, you might consider "Large Format" and bypass the whole kit & caboodle! Now your cooking with gas Photog!! LOL
Cheers/ The PhotogDog
:lol:
Cheers/ The PhotogDog
:lol:
:thumbup: :thumbup: :thumbup:
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