On 9 Jun 2001, at 19:47, Pål Jensen wrote:
When designating equal lenses (MF and 35mm) I was thinking of overall
performance. Eg the two lenses projects the same information content (total
number of lines for instance) but on circles with different size.
I think that this is where our
Pål Jensen wrote:
Isaac wrote:
It's easy, you can't change a lens' illumination angle. Coverage of a
lens is defined by its illumination angle, not the size of the circle of
illumination. If what you say above is true, I should be able to shoot
8x10 film with my SMC 50mm f1.4, and I
On 6 Jun 2001, at 14:14, Pål Jensen wrote:
But the point in this debate is that when using a MF lens on a 35mm camera you
will actually decrease the resolution of the lens practically speaking. An MF
lens will perform worse on a 35mm camera than on a MF camera. The resolution of
the lens
Pål Jensen wrote:
Isaac wrote:
Except the fact that the camera/lens combo would be rather awkward
because of the larger lenses, no autofocus and stop down metering, there
would be no compromises... Seriously though, I can't see many pros
putting up with those limitations on a really
William wrote:
HUH? By that arguement, my 210mm NikkorW should only resolve
about 8 LPPM. I know for a fact it resolves closer to 60 on the
film. Format doesn't matter.
Isn't 60 lines pr MM remarkably bad for a lens for the 35mm system?
Pål
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Tom wrote:
Resolving power is not spread over the image (lenses are
essentially holographic devices). The medium format lens
simply has a wider field of view.
I don't get this. I'm no optical engineer but unconceivable to me how you can double
cover area without doubling optical defects
Rob wrote:
There is no truth in the statement the MF lenses have lower MTF values
either,
Whatever resolving power a MF lens has it has to be distributed over a larger area
than a 35mm lens.
Pål
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???
Resolving power is not spread over the image (lenses are
essentially holographic devices). The medium format lens
simply has a wider field of view. Older MF lenses may not
have been as highly corrected as 35 mm lenses, but in these
days of CAD/CAM the resolving power of the lenses are
- Original Message -
From: Pål Jensen
Subject: Re: Medium Format to 35 (WAS: Digital MZ - MR 52 projet
still in the air ???)
Rob wrote:
There is no truth in the statement the MF lenses have lower
MTF values
either,
Whatever resolving power a MF lens has it has to be
- Original Message -
From: Tom Rittenhouse [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: June 4, 2001 6:33 PM
Subject: Re: Medium Format to 35 (WAS: Digital MZ - MR 52 projet
still in the air ???)
???
Resolving power is not spread over the image (lenses are
essentially holographic
On 4 Jun 2001, at 0:31, Pål Jensen wrote:
Todd wrote:
It should perform quite well, as you are just using the center of the image
produced by the lens, which is where most lenses perorm best.
They still show visible light fall-off at the corners at wide apertures. Also,
when used on
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