2007-03-16 05:52:20 · 9 answers · asked by jerry y 1 in Arts & Humanities ➔ Visual Arts ➔ Photography
We only see the part of the image that lands on the recording medium, whether it is film or a digital sensor.
If you want to try something interesting, put a "DX" or "Di" or other "digital only" lens on a film camera. This will demonstrate to you that the image created by light coming through a lens is indeed round. The diameter of "DX" or "Di" lenses is smaller than adequate to fill a full frame of 35 mm film. You will observe "vignetting," or a rounding of the corners of the image. This is because the actual image is round and with a "DX" lens, the borders of the image are too small to go beyond the edges of a normal frame of 35 mm film.
This works the other way around when you put a "film" lens on most digital cameras. The actual image created is so much larger than the sensor that there would never be any evidence of rounding. You are only capturing the center part of the actual image. This is actually a way to get better quality images. If you use a "film" lens on a digital camera (other than one with a full-sized sensor), you will be gathering light from the center or "sweet spot" of the lens. Most distortion is caused closer to the edge of a lens and this part of the image is way out of the field of detection on the digital sensor.
2007-03-16 17:39:10 · answer #1 · answered by Picture Taker 7 · 0⤊ 0⤋
This is a funny question ...but lets consider it a serious one.
Yes the lens looks round and the final result a photo on the paper or digital file is a square.
That because:
1. For digital - the sensor is a square.
2. For film photography (35mm or else) - the film frame is a square.
3. When you print from film or digital the paper is a square. If the paper shape will be a star , well the photo will be as a star shape.
;-)
2007-03-16 13:39:13 · answer #2 · answered by dand370 3 · 0⤊ 1⤋
If you look closely into a camera's len you can see a square shaped figure in there. Does that answer your question?
2007-03-16 05:56:42 · answer #3 · answered by kyle_robinson_10 2 · 0⤊ 2⤋
A few different reasons:
1. It lets more light into the lens
2. The Actual aperture is square (rectangular really)
3. All screens and monitors that you see pics in are not round
4. It's easier to calculate dimensions for squares pics
2007-03-16 06:05:32 · answer #4 · answered by Ri 3 · 0⤊ 4⤋
The sensor (digital) or film on which the image is captured is a square or rectangle.
2007-03-16 06:02:04 · answer #5 · answered by toastergnome 4 · 1⤊ 0⤋
You could use Ellipse tool (Round images) in Adobe Photoshop.
2007-03-16 16:40:49 · answer #6 · answered by victor98_2001 4 · 0⤊ 0⤋
Because it focuses on film pulled through a rectangularplane or on a ccd that is rectangular
2007-03-16 07:36:46 · answer #7 · answered by jokimben_el 2 · 1⤊ 0⤋
Your eyes are round(ish) but your see a rectangular world....
2007-03-16 06:22:03 · answer #8 · answered by rdenig_male 7 · 0⤊ 1⤋
some cameras can make circle pictures
2007-03-16 05:55:33 · answer #9 · answered by Anonymous · 0⤊ 3⤋