The film or sensor is square, but the lenses are round. Like round peg in a square hole?
I was asked this and didnt know 100% why. I assumed it was because how the glass is made. 
sorry for the dumb question
sigmapi Cream of the Crop  11,204 posts Likes: 6 Joined Apr 2010 Location: Los Angeles More info | Jul 08, 2010 01:52 | #1 The film or sensor is square, but the lenses are round. Like round peg in a square hole? Don't try to confuse me with the facts, my mind is already made up.
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twofruitz Senior Member  840 posts Joined Oct 2007 Location: AUSTRALIA More info | Jul 08, 2010 01:59 | #2 It's to do with the way light enters the lens evenly. A circle allows an even consistency for light to enter; a square wouldn't.
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lerroy Senior Member  414 posts Likes: 3 Joined May 2010 Location: WA Desert Australia More info | Jul 08, 2010 02:01 | #3 i don't think its a dumb question better than My 7D is broke it wont focus posts JLB Photography Website
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sigmapi THREAD STARTER Cream of the Crop 11,204 posts Likes: 6 Joined Apr 2010 Location: Los Angeles More info | Jul 08, 2010 02:02 | #4 lerroy wrote in post #10497301  i don't think its a dumb question better than My 7D is broke it wont focus posts touche. I have a 7D ............... and it focuses just fine Don't try to confuse me with the facts, my mind is already made up.
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sigmapi THREAD STARTER Cream of the Crop 11,204 posts Likes: 6 Joined Apr 2010 Location: Los Angeles More info | Jul 08, 2010 02:03 | #5 twofruitz wrote in post #10497295 It's to do with the way light enters the lens evenly. A circle allows an even consistency for light to enter; a square wouldn't. Sorry I can't be more scientific than that. AHHHHHH thank you Don't try to confuse me with the facts, my mind is already made up.
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sigmapi THREAD STARTER Cream of the Crop 11,204 posts Likes: 6 Joined Apr 2010 Location: Los Angeles More info | Jul 08, 2010 02:09 | #7 Hmmmm we are on to something. Round pictures from now on! Don't try to confuse me with the facts, my mind is already made up.
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monk3y Totally Saturated  More info | Jul 08, 2010 02:19 | #8 sigma pi wrote in post #10497330 Hmmmm we are on to something. Round pictures from now on! so we should suggest to nikon or canon to build round sensors then hahaha end of vignettes.
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NinetyEight "Banned for life"  More info | Jul 08, 2010 02:33 | #9 monk3y wrote in post #10497358 so we should suggest to nikon or canon to build round sensors then hahaha end of vignettes. No, you will still get vignetting, it's just that it will be round the entire circumference of the image rather than just the corners Kev
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gte357s Senior Member 489 posts Joined Mar 2009 More info | This sounds like one of those interview question ask my Microsoft. Canon 5D MK I | Canon 24-70 F2.8 L | Canon 70-200 F2.8 L IS I | Sigma 85 F1.4 | Tamron 1.4x TC | Canon 430 EXII
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Jericobot Cream of the Crop  5,128 posts Likes: 1 Joined Jun 2010 Location: preppingforthetrumpets More info | Jul 08, 2010 04:06 | #12 Maybe that's why our eyes are round while our vision is kinda in a box, kinda α7ii + (batis 25 f2 / zeiss 55 f1,8 / macro 90 f2,8)
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kidfiji Member  210 posts Joined Apr 2009 Location: Milpitas, CA More info | Jul 08, 2010 04:55 | #13 Circular lenses make everything easier, from production to function. Think about it! Gripped 50D
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SkipD Cream of the Crop  20,476 posts Likes: 165 Joined Dec 2002 Location: Southeastern WI, USA More info | Jul 08, 2010 05:45 | #14 Can you imagine screwing on a square filter? Skip Douglas
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poah Goldmember 1,003 posts Likes: 1 Joined Aug 2006 Location: Glasgow More info | Jul 08, 2010 05:53 | #15 no sharp edges for one thing lol Free printer profiles PM me for info
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