zoom lens Nikkor vs. Sigma vs. Tamron??

Michael Scarpitti wrote:

Brian Caldwell wrote:
Making the most of affordable equipment is not something you are well
known for. If you stop down any photographic lens sufficiently then
the only remaining aberrations will be distortion, lateral color, and
chromatic variation of distortion. These last two combined are
normally called color fringing. All three of these aberrations can be
reduced to vanishingly small levels by simple post processing
techniques using free softwa

http://www.caldwellphotographic.com/...rFringing.html

Brian
www.caldwellphotographic.com




You CANNOT replace the qualities of an image there were never there to begin with.


They're there, just not at the right "place" (by color).

The referred s/w corrects the registration (location) of each.

Perfect? No

Better than uncorrected? Many times so.



--
--e-meil: there's no such thing as a FreeLunch.--

Subject: zoom lens Nikkor vs. Sigma vs. Tamron??
From: TP
Date: Mon, Jun 21, 2004 6:28 AM
Message-id:

(Lewis Lang) wrote:

Gee, I guess I should have never made those excellent 8x10"s and those
quite
decent _16x20"_ prints off of my Tamron 24-70/3.3-5.6... What was I
thinking????


ROTFL!!!

It is impossible to generalise about lens brands. Almost every brand
includes some good performers and some lemons. The exceptions are
Leica and Zeiss, who don't make any lemons, Sigma, whose lenses fail
consistently to live up to expectations, and Cosina, who don't seem to
make any good ones, except of course for rangefinder cameras under the
Voigtländer brand (all IMHO).

Tamron make some superb lenses, and some of the worst lenses available
for 35mm SLRs, especially the AF zoom standard lenses of the 1990s
sold under several camera brands. They were truly dire. But at the
other end of the Tamron range there are some outstanding optics.

The same is true (IMHO) of Canon, Nikon, Pentax, Minolta and Tokina.



I totally agree :-).

Check out my photos at "LEWISVISION":

http://members.aol.com/Lewisvisn/home.htm

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"W Chan" wrote in message news:aibAc.739462$Pk3.530185@pd7tw1no...
hi, i am a new owner of nikon d-70 (body only).. and hv owned my f401 for
yrs.
i am shopping for zoom lenses... and wud like to hear about people's
comments on these 3 brands.. Nikkor, Sigma, and Tamron... thks/will

Sigma make the best lenses among the manufacturers you listed. The
only problem is that you might have compatibility issues when using
Sigma lenses on third party camera bodies (Canon, Nikon, Minolta,
etc...). The best thing you can do is to sell the ****ty Nikon, buy
yourself a new Sigma SD10 DSLR body, and start building your Sigma
glass collection.

Remember, only Sigma cameras use the coveted Foveon sensor, which is
the only sensor to record true color images. All other digital cameras
record monochrome pixels, and then guess at the colors later, and more
often than not, the colors are way off. The Sigma SD10 also gives you
better effective resolution that any other DSLR in production. For
slightly more money than you spent on your Nikon consumer DSLR, you
can own the Sigma Pro DSLR. Lose that piece of **** and treat yourself
to a great camera.

Hope this helps,

Orville

Remember, only Sigma cameras use the coveted Foveon sensor, which is
the only sensor to record true color images. All other digital cameras
record monochrome pixels, and then guess at the colors later, and more
often than not, the colors are way off. The Sigma SD10 also gives you
better effective resolution that any other DSLR in production. For
slightly more money than you spent on your Nikon consumer DSLR, you
can own the Sigma Pro DSLR. Lose that piece of **** and treat yourself
to a great camera.

Hope this helps,

Orville


Not on MY planet they don't.

LT

(Michael Scarpitti) wrote in message

You CANNOT replace the qualities of an image there were never there to begin with.

I was just pointing out that certain important aberrations can be very
successfully eliminated by simple image processing. This will
eliminate undesirable image qualities while leaving the desirable
qualities intact.

Brian
www.caldwellphotographic.com

Orville Wright wrote:

"W Chan" wrote in message news:aibAc.739462$Pk3.530185@pd7tw1no...
hi, i am a new owner of nikon d-70 (body only).. and hv owned my f401 for
yrs.
i am shopping for zoom lenses... and wud like to hear about people's
comments on these 3 brands.. Nikkor, Sigma, and Tamron... thks/will

Sigma make the best lenses among the manufacturers you listed. The
only problem is that you might have compatibility issues when using
Sigma lenses on third party camera bodies (Canon, Nikon, Minolta,
etc...). The best thing you can do is to sell the ****ty Nikon, buy
yourself a new Sigma SD10 DSLR body, and start building your Sigma
glass collection.

Remember, only Sigma cameras use the coveted Foveon sensor,

remember, no one else wants that small sensor.
also, no one else cares enough to make lenses for it.

small sensor,
bad color,
no lens choices.


which is the only sensor to record true color images.

it just sort of makes up what color they were.


All other digital cameras
record monochrome pixels, and then guess at the colors later, and more
often than not, the colors are way off. The Sigma SD10 also gives you
better effective resolution that any other DSLR in production. For
slightly more money than you spent on your Nikon consumer DSLR, you
can own the Sigma Pro DSLR. Lose that piece of **** and treat yourself
to a great camera.

Hope this helps,

Orville

Sigma EX series lenses are worthy alternatives to brand name Nikkor optics.
I shoot the 100-300 f/4 EX HSM on my Canon 10D. It is as fast and sharp
as the *slightly* more expensive Canon L series.

Avoid the consumer grade stuff of Sigma and Tamron unless you don't mind
returning it for a working replacement. I've had 50/50 success with the
stuff. Consumer lenses by Sigma, Quantaray, Tamron, and Tokina are all
manufactured by _______ and marketed under their respective names by Ritz.



"W Chan" wrote in message
news:aibAc.739462$Pk3.530185@pd7tw1no...
hi, i am a new owner of nikon d-70 (body only).. and hv owned my f401 for
yrs.
i am shopping for zoom lenses... and wud like to hear about people's
comments on these 3 brands.. Nikkor, Sigma, and Tamron... thks/will


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