Re: [OT] Lenses [Was: [OT] Cameras again]

In message <1135880175snz@xxxxxxxxxxxxxxxxxxx>
ames@xxxxxxxxxxxxxxxxxxx (Andrew Stephenson) wrote:

> In article <1h8bt2y.1uosvad18zu3a3N%peter@xxxxxxxxxxxxxxxx>
> peter@xxxxxxxxxxxxxxxx "Peter Ceresole" writes:
>
> > [...] I found that when I was working over a subject, altering
> > focal length for picture, not to a preconceived value, I mostly
> > ended up at around 35mm. This is equivalent to the sub-30mm
> > range for a CCD.
>
> ISTR reading that 35mm typically gives a field of view similar to
> the human eye. I do struggle to understand that claim, given the
> eye's differences from a camera: sensor size, frex. OTOH running
> VistaPro to generate landscape views, I too find myself favouring
> focal lengths around 35mm. Maybe someone else can clarify this?

At 35mm (50mm on a 35mm film camera) the perspective of the view is very
similar to the human eye. Shorter focal lengths expand the perspective
introducing increasing distortion until you eventually get the fisheye
effect. Longer focal lengths compress the perspective.

--
Graeme Wall

My genealogy website:
<http://www.greywall.demon.co.uk/genealogy/index.html>
.

Relevant Pages

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    ... >>> similar to the human eye. ... Longer focal lengths compress the perspective. ... >> optical centre of the lens. ... the retina is at a fixed distance form the optical centre of the ...
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  • Re: [OT] Lenses [Was: [OT] Cameras again]
    ... > similar to the human eye. ... Longer focal lengths compress the perspective. ... Human eyes don't have a flat plane of film at a fixed distance from the ...
    (uk.comp.sys.mac)
  • Re: [OT] Lenses [Was: [OT] Cameras again]
    ... > In article, Graeme Wall ... >> similar to the human eye. ... Longer focal lengths compress the perspective. ... the retina is at a fixed distance form the optical centre of the ...
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