Re: Canon's problem with WA lenses and FF (the solution?)
- From: "Skip M" <shadowcatcher@xxxxxxx>
- Date: Sun, 19 Mar 2006 11:35:38 -0800
"Rita Ä Berkowitz" <ritaberk2O04 @aol.com> wrote in message
news:121qmccg2e3l33d@xxxxxxxxxxxxxxxxxxxxx
Which came first, the chicken or the egg? I agree with what you are
saying,
but think about it a bit. Your argument and mine demonstrate the total
uselessness of an FF sensor since this is nothing more than nomenclature
for
a dead format.
Since the majority of lenses on the market today for use on SLR digital
cameras were designed for 35mm sized sensors (film), it is hardly "useless."
You're German, aren't you, Rita? I've noticed a tendency for Germans to
speak in absolutes when speaking or writing in English. ("Useless,"
"foolish." No grey area.) My wife's mother and grandmother did just that,
as did her grandfather on her mother's side. That leads to a confrotational
tone to almost every discussion in which there is a disagreement.
It's totally irrelavent what the sensor size is just as long
as long as both the lens system and body work properly together. To me,
this means that I shouldn't be plagued with vignetting of the old "film"
days.
The "solution" for both Canon and Nikon is to design their lens system to
work properly with whatever nomenclature they want to slap on their
sensors.
Most "experienced" photographers realize what lens characteristics they
had
to "live with" back in the day, but they shouldn't be expected to endure
it
in the 21st century. This statement holds true, especially when Canon and
Nikon expect their customers to trash a $5,000+ dSLR body every 12-18
months
and buy the latest and greatest cutting edge technology. To me, it's
important to buy into a lens system that I can keep pretty much for life
and
throw bodies away every year.
Well, Nikon has shown a reluctance/inability to do just that when designing
DX lenses, if the reports and reviews I read have any credence. And Canon's
EF-S lenses have a tendency to vignette, too. I wonder what it is about
lens designers and their designs that won't allow them to keep that to a
minimum.
Sure, you could make the image circle larger with any lens. But then
photographers would complain that they are unable to use the whole
image that the lens produces, even if that image is not optimum from
edge to edge. Experienced photographers also know that vignetting gets
worse if you stick a filter on the lens and know how to adjust for
that. They don't do idiotic things like stick two filters on the
camera or put a "protective" UV filter on a wide-angle lens unless
they don't care about the vignetting.
See above: They can keep the smaller sensor size and vignetting isn't too
much of an issue. Of course, with the crop factor they would need to
design
a high quality WA to fill in the gap. I agree with you about the filters,
but that is the photographer's choice. If a person wants to slap a filter
on the lens they are more than welcome to do so, but that is no reason for
a
lens manufacturer to offer lenses that vignette on whatever "new" format
they offer.
It only seems to be no issue when the smaller sensor is used in conjunction
with lenses designed for larger sensors. When the designers are presented
with an opportunity to design for the smaller sensor, they seem driven to
produce the same results that the old designs had with film and 35mm sized
sensors. Even Oly, their 35-100, for instance, is actually larger than the
Canon 70-200 f2.8, for which it is the equivalent. That's how they seem to
have avoided light fall off, build a lens larger than it needs to be...
Pay attention to the guys who have been using cameras for more than
three years. They might actually know what they are talking about.
True, but why continually administer CPR on a dead horse when it's time to
send it to the butcher?
'Cause, m'dear, the horse is not only alive, but kicking...
--
Skip Middleton
http://www.shadowcatcherimagery.com
.
- References:
- Canon's problem with WA lenses and FF (the solution?)
- From: RichA
- Re: Canon's problem with WA lenses and FF (the solution?)
- From: cjcampbell
- Canon's problem with WA lenses and FF (the solution?)
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