If lenses are round.............
Jul 21, 2014 19:22:10 #
Jul 21, 2014 19:28:26 #
Racmanaz wrote:
then why....
The corners would have distortion that would lead to all kinds of chromatic aberrations.
Jul 21, 2014 19:34:47 #
boberic wrote:
The corners would have distortion that would lead to all kinds of chromatic aberrations.
But, but, how can you have corners in a round image? :lol:
Jul 21, 2014 19:42:50 #
onyxtiger wrote:
But, but, how can you have corners in a round image? :lol:
:?:
Jul 21, 2014 19:57:08 #
onyxtiger wrote:
But, but, how can you have corners in a round image? :lol:
If a square or rectangular lens were made it would have corners. Circles have diameters or a rafius. It can have tangents, arcs or cords but it can't have corners. Un less of course the manufacturer took short cuts and cut corners. Would you use a square filter with a square lens. Would square or rectangular be best. Then you could have endless arguments as to which is best. Here is the real reason that lenses are round. They don't want to be square. Ya dig!
Jul 21, 2014 20:01:42 #
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
Printing would be an adventure. In stead of using paper on a roll you could slice it like a Salami!
Jul 21, 2014 20:02:32 #
boberic wrote:
If a square or rectangular lens were made it would have corners. Circles have diameters or a rafius. It can have tangents, arcs or cords but it can't have corners. Un less of course the manufacturer took short cuts and cut corners. Would you use a square filter with a square lens. Would square or rectangular be best. Then you could have endless arguments as to which is best. Here is the real reason that lenses are round. They don't want to be square. Ya dig!
Square lenses would look funny. :shock:
Would there be a circle of confusion associated with square lenses?
Jul 21, 2014 20:12:08 #
Marionsho wrote:
Square lenses would look funny. :shock:
Would there be a circle of confusion associated with square lenses?
Would there be a circle of confusion associated with square lenses?
Would a square lens run circles around the competition?
Jul 21, 2014 20:12:48 #
boberic wrote:
Would a square lens run circles around the competition?
LOL :lol: :lol:
Jul 21, 2014 20:22:38 #
boberic wrote:
Would a square lens run circles around the competition?
Of course not, it would be the other way around. So says the 'Mad Hatter'. :roll:
Jul 21, 2014 20:41:43 #
Jul 21, 2014 21:27:49 #
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:
And large format lenses have even more coverage to allow for camera movements such as the following. The film frame is still well within the coverage of the lens in most positions.
Jul 22, 2014 14:34:23 #
Geezus....we've been going round and round on this subject! Whoa, square and square?
Jul 22, 2014 15:24:23 #
People like and are used to rectangular pictures (think oil paintings). As to why cameras have round lenses you have to ask people who manufacture them.
Jul 22, 2014 16:05:40 #
amehta
Loc: Boston
Racmanaz wrote:
then why....
A "Racmanaz special": ask a silly question which has non-silly answers. :lol:
Lenses are round because the light comes into them from all angles. A rectangular lens would basically produce a good image in a circle "inside the rectangle". Instead, we get a circular image circle which is then cropped.
Pictures are rectangular because it is much more efficient to produce rectangular paper. Cutting the paper into circles would produce much more waste. Film is rectangular for the same reason. Finally, sensors are cut from circular wafers, but many sensors fit onto one wafer, so those are also rectangular to reduce the wasted area of the wafer.
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