Ah Chip-not nice to Assume! For I too am a professional photographer (36 yrs
worth and Certified with the PPofA). Yes I realize the lens will give you
distortion (especially wide angles close in) but for 25 yrs I shot with
Leica-my all time favorite lens was the 19 f 2.8 and it DID NOT distort like
the 16mm end of this lens does. I guess those 3 mm's make a difference (I
guess size does matter). I work mostly with people now and do not use
Photoshop for correction of distortion-but can tell you that when shooting
groups I have to be careful with the folks on the end that I not get them to
close to the edge (With this lens) or they will distort-even if the camera
is squared -most people don't have too many straight lines. I switched to
the Canon system for the auto focus ability and am very please with it. When
I do on occasion do architectural images I go back to the Cambos ( 8x10 or
4x5), even there I have a 75mm Rodenstock Grandagon that has some slight
edge distortion. Perhaps I have two lens that are not up to snuff.
I do realize that it is NOT the fault of the lens-but with this tool it does
seem more extreme than I feel it should be. Maybe this is part of the nature
of a zoom lens. After lurking (did not realize to erase that little line at
the bottom) for about 3 yrs I just figured it was time to get into the chat.
Cheers Wilber
----- Original Message -----
From: "Chip Louie" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, August 26, 2005 1:48 PM
Subject: RE: [inbox] Re: EOS Advices needed for lens purchase
>
>
>I may be wrong, but it is my understanding, and opinion, that
all of these
>lenses that are designed for digicams are marginal at best in full frame
>applications like film or full frame sensors.
>
> Since the typical digital image sensor is in the center of the "frame"
> little has been done to keep sharpness at the edges as with non digital
> lenses.
>
> Any comments?
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Wilber
Sent: Friday, August 26, 2005 8:17 AM
To: [email protected]
Subject: [inbox] Re: EOS Advices needed for lens purchase
Bob, the only this that I know is that we shoot with he 16-35 "L" f / 2.8
and I was told this and the 17-35 were both designed for the 1.6x
sensors.
So when we shoot with this on the full frame cameras the edge
distortion is
unreal- very very bad- sharp but bad.
Wilber
----- Original Message -----
From: "Bob" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, August 26, 2005 10:54 AM
Subject: Re: EOS Advices needed for lens purchase
Hello new list readers,
Bob, your understanding is incorrect, both of these lenses EF 17-35 2.8L
and
EF 16-35 2.8L were designed for use on full frame 35mm format cameras.
I've
owned and used both of these lenses and while not perfect this lens fills
a
pretty broad range of uses on my 1.3X and 1X bodies. When I bought my
first
EF 17-35 2.8L there were no practical, usable professional quality digital
bodies available for the Canon EF mount. When I bought my first EF 16-35
2.8L the first new professional 4MP EOS 1D bodies had been announced at
$7,000 but you couldn't get them at any price unless you were a Sports
Illustrated or ESPN, they were very, VERY scarce and film was the main
media
of the 35mm format SLR bodies. Fast forward 4 years to 2005 when any Tom,
Dick or Jane can buy a fully featured consumer DSLR with 6MP sensor for
$800
and now you have an understanding that is simply incorrect.
Wilber, I'm a professional photographer shooting primarily architecture
and
professional motorsports and I have been shooting digitally for about 3
years now. I use the EF 16-35 2.8L and EF 15 2.8 FF Fisheye lenses
everyday
on EOS 1DS bodies for architecture and have no problems with distortion at
all. ALL of the lines in my finished images are ruler straight when using
either lens. Of course there are several digital corrections involved but
what do I care? When a shot can sometimes take hours to setup and light
and
an other 10-15 minutes to get the camera positioned and the image framed
correctly what's an other 15 minutes in post capture doing distortion,
perspective and vignette correction for an image? This is what I get paid
to know how to do to produce corrected images.
At normal distances these lenses have some minor distortion that are not
noticeable to the average person without obvious straight lines running
all
the way through them as do ALL optical lenses. For an image where you
want
to take advantage of the perspective distortion that ALL very wide angle
lenses have when focusing very close what do you expect, straight lines?
This is simply the nature of ALL very wide angle lenses and most armatures
don't realize this and then say the lens has very bad distortions, this is
NOT a lens fault.
Cheers/Chip
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