Re: Large formad drawback?

In message <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (Thom) wrote:

>If you take an obect say 25mm's tall and photography it with a 17mm,
>28mm, 85mm and 250mm lens all at F8 (i.e.) and the image size on the
>film is 25mm the depth of field will be the same for all lenses.  Wide
>angles lens give the illusion of greater dpeth of field.

Well, I think that the statement is usually made in regards to an equal
focusing distance, that's why people say that wide-angle lenses have a
greater depth of field.  Also, for the same FOV with a smaller medium,
you get greater depth of field for the same subject size relative to the
frame.
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   John P Sheehy         <[EMAIL PROTECTED]>
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