I see you have given up argument yet again Greywolf and feel somehow insult will win you the argument. A.
On 7/8/04 11:08 pm, "graywolf" <[EMAIL PROTECTED]> wrote: > There are two things I would like to address here Keith. First, I know you are > not that dumb. Second, that means you are being an (censored). > > Have fun. > > -- > > Keith Whaley wrote: >> I essentially don't use any automatic 35mm cameras, I almost always use >> mechanical cameras with a marked f-stop. >> If I carry out the test you outline, I must measure the diameter of the >> first camera's aperture blade's opening, and set the second camera to >> that opening diameter, NOT the f-stop? >> Is that what you're saying? >> >> This is cropping in the camera while recording the image, yes? >> >> What will that give me? >> >> Let's say I take my 105 mm lens and my 24 mm lens, set both cameras at a >> 20 foot focal distance, for example, and make both lens openings the >> same, and you're saying the photos I record will be the same, except for >> magnification of the grain? >> What will be the same? The area covered? Certainly not. >> The image sizes will not be the same. A person's head in the 24 mm lens >> shot will end up being smaller on the film frame than it will on the 105 >> mm lens image. >> >> Taking that a step further, if I took a 100mm lens shot, and after >> changing lenses (to the 24 mm), walked up to the subject and had their >> head image size match the first shot, the image might be the same, but >> the perspective will certainly and most noticeably change. >> >> What will "be the same," Tom? >> >> keith whaley >> >> >> graywolf wrote: >> >>> Well, the question was about portraiture, as I recall. In actuallity >>> any lens can be used for any photo as long as it is not too long to >>> get the subject into the frame from the distance you have to work in. >>> >>> As for portraits, I love how our English/American cultural biases >>> dictate subject distance. We tend to be comfortable holding >>> conversations at about a five-foot distance. So we like portraits to >>> show faces from about that distance. Then we try to impose that upon >>> people who come from cultures where the norm is to get right up close. >>> For them 2-3 feet is comfortable. >>> >>> We reason our discomfort away with silly statements about perspective. >>> But that is really displacement on our part. As an example we are >>> usually quite comfortable with portraits from about 3 feet, if we know >>> that person intimately. Humans are such strange animals. >>> >>> An aside about cropping wide angles v. short tels: Distance, and >>> aperture being the same, the only difference in the photos will be >>> grain magification. Note I said aperture, not f-stop. That experiment >>> will I show something about DOF that I have tried to explain here before. >> >> >> >>
