Sigma 70-300mm f/4-5.6 DL Macro Super II with teleconverter

I am getting a Sigma 70-300mm f/4-5.6 DL Macro Super II. Wondering if
anyone's using a teleconverter on it with satisfactory results?

Now, I know that this is not as good as the APO but from what I read it
seems to do a decent job for the price. But not sure it will yield good
results with a teleconverter.

If you are satisfied with this lens + a telecon then please let me know
what teleconverter are you using alongwith a few sample shots.
Thanks,

Siddhartha

"Siddhartha Jain" wrote in message
ups.com...
I am getting a Sigma 70-300mm f/4-5.6 DL Macro Super II. Wondering if
anyone's using a teleconverter on it with satisfactory results?

Now, I know that this is not as good as the APO but from what I read it
seems to do a decent job for the price. But not sure it will yield good
results with a teleconverter.

If you are satisfied with this lens + a telecon then please let me know
what teleconverter are you using alongwith a few sample shots.
Thanks,

Siddhartha

I have the cheaper Sigma 70-300 4-5.6 and my only comments are after talking
to the Ritz store manager: Don't use a 2x, as already discussed in earlier
threads this past weekend. Autofocus does not work beyond the the 200mm
range. Manual focus will not produce sharp results, and will be very
"grainy". I returned it am now looking for a Canon 1.4x with a money back
satisfaction guarantee.

Toomanyputters wrote:
I have the cheaper Sigma 70-300 4-5.6 and my only comments are after
talking
to the Ritz store manager: Don't use a 2x, as already discussed in
earlier
threads this past weekend. Autofocus does not work beyond the the
200mm
range. Manual focus will not produce sharp results, and will be very

"grainy". I returned it am now looking for a Canon 1.4x with a money
back
satisfaction guarantee.
And how is the lens without a teleconverter?

- Siddhartha

"Siddhartha Jain" wrote in message
ups.com...
Toomanyputters wrote:
I have the cheaper Sigma 70-300 4-5.6 and my only comments are after
talking
to the Ritz store manager: Don't use a 2x, as already discussed in
earlier
threads this past weekend. Autofocus does not work beyond the the
200mm
range. Manual focus will not produce sharp results, and will be very

"grainy". I returned it am now looking for a Canon 1.4x with a money
back
satisfaction guarantee.
And how is the lens without a teleconverter?

- Siddhartha

I think it is very good. I shoot a lot of birds in motion and I find
nothing wrong with it.

Toomanyputters wrote:
I think it is very good. I shoot a lot of birds in motion and I find

nothing wrong with it.
Got any images online? Thanks for the feedback.

- Siddhartha

In message ,
"Toomanyputters" wrote:

I have the cheaper Sigma 70-300 4-5.6 and my only comments are after talking
to the Ritz store manager: Don't use a 2x, as already discussed in earlier
threads this past weekend. Autofocus does not work beyond the the 200mm
range. Manual focus will not produce sharp results, and will be very
"grainy". I returned it am now looking for a Canon 1.4x with a money back
satisfaction guarantee.

Teleconverters can't make images "grainy". Maybe what you mean is that
grain (film) or noise (digital) is the only high-frequency component in
the image when the optics are too soft. They are *always* there, sharp
focus or not.
--


John P Sheehy

wrote in message
...
In message ,
"Toomanyputters" wrote:

I have the cheaper Sigma 70-300 4-5.6 and my only comments are after
talking
to the Ritz store manager: Don't use a 2x, as already discussed in
earlier
threads this past weekend. Autofocus does not work beyond the the 200mm
range. Manual focus will not produce sharp results, and will be very
"grainy". I returned it am now looking for a Canon 1.4x with a money back
satisfaction guarantee.

Teleconverters can't make images "grainy". Maybe what you mean is that
grain (film) or noise (digital) is the only high-frequency component in
the image when the optics are too soft. They are *always* there, sharp
focus or not.
--
Yea, that's what I meant. But I stand by what I said about AF not working
correctly beyond 200mm on the Sigma. Maybe I should not have commented at
all, since I used a cheaper 2x on a cheaper Sigma. But having read the
earlier comments using a 2x converter, I was experienceing most of those
problems. Now I see follow ups with those of you having great success with
these converters.