I have always heard that MF lenses didn't have the resolving power of
35mm lenses. Not because it's not possible but because they didn't have
to. You can still get lots more detail by using lower resolution but
spread over a larger area.
But I just decided to check what's going on in the MF digital arena and
see that Phase One has a 39 MP back which is 49.1 x 36.8 mm or just a
bit more than twice the size of a 35mm frame. When you work this out it
gives an equivalent density of about 18MP for a full size 35mm frame or
a bit more than the current Canon pro level cameras at 16MP.
At least one Canonite who has been lusting after Zuiko 18, 21 and 24mm
lenses and other brands besides Canon says that even the best of the
best can't resolve the full 16MP all the way across the frame. One
wonders theb what Phase One recommends for a lens to resolve all of
their 39MP.
Chuck Norcutt
Walt Wayman wrote:
> Well, maybe, in olden times and in some instances. But I'd bet a month's
> wages (easy for me to say since I'm retired) that my 100/5.6, 120/5.6 or
> 150/5.6 APO Schneider Symmars will come pretty close to equaling the best
> 35mm lenses in a head-to-head comparison of a 24x36mm crop from the middle of
> a 6x9 tranny.
>
> Walt, who, as always, reserves his constitutional right to be wrong
>
> "Anything more than 500 yards from
> the car just isn't photogenic." --
> Edward Weston
>
> -------------- Original message ----------------------
> From: "Geilfuss Charles" <Charles.Geilfuss@xxxxxxxxxxxxxxxxx>
>
>>Ian,
>> I'm by no means an expert on MF lenses, but since it's a slow
>>Friday afternoon I'll put in my half pence. While there may be some
>>exception ('Blads and other hallowed brands) 35mm lenses are *sharper*
>>than MF lenses and must be so to have a chance of producing a decent
>>image with so little film. MF achieves its wonderful images by sheer
>>brute force of square inches of film.
>>
>>Charlie
>>
>>-----Original Message-----
>>From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On
>>Behalf Of swisspace
>>Sent: Friday, October 06, 2006 3:09 PM
>>To: olympus@xxxxxxxxxx
>>Subject: [OM] resolving power and medium format lenses
>>
>>Perhaps I shouldn't have because it has got me confused, but is the
>>quality of medium format lenses bette than 35mm, I mean if the resulting
>>
>>image from a medium format is better than 35mm do the lenses resolv
>>more.
>>
>>I bought a second hand bronica etrsi about 12 years ago and have only
>>put 3 rolls of film in it, partly because I lost the manual and didn't
>>now how to use it and partly because of time, anyway I used it for the
>>recent car pictures and spurred on I have just loaded another film into
>>and handed it to my wife who promply declared its 3d, so I looked again
>>and sure enough it does have a more 3d look to it, then I looked at the
>>lens and the rear element doesn't look that much larger than some of my
>>zuikos, so then I started wondering about resolution.
>>
>>i.e. if as discussed before we are reaching the limits at 35mm why do
>>they sell more 22 megapixel backs for medium format.
>>
>>IanW
>>
>
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