2X TC's shootout

drip said:

I happen to have three 2X TC's at this moment: Sigma 2X (brand
new), Canon 2X I (like new) and Canon 2X (brand new). So what else
is better than comparing them. Here's the typical result after
several rounds of testing (pardon the purple blooming):
http://www.pbase.com/image/24393419/original
For Ultimate image quality, especially in the corners, Canon 2X II
is the way to go. The ever slightly sharper performance may be
worth the money for some perfectionists.
--
Brian
San Antonio, TX
Home of the 1999 & 2003 NBA Championships
10D owner and love sharp images.
http://www.pbase.com/drip

Click to expand...

mcfly said:

Thanks.
How this combo (200L + TC2x) improves stopped down to F/8 and F/11?

Click to expand...

drip said:

I happen to have three 2X TC's at this moment: Sigma 2X (brand
new), Canon 2X I (like new) and Canon 2X (brand new). So what else
is better than comparing them. Here's the typical result after
several rounds of testing (pardon the purple blooming):
http://www.pbase.com/image/24393419/original
For Ultimate image quality, especially in the corners, Canon 2X II
is the way to go. The ever slightly sharper performance may be
worth the money for some perfectionists.
--
Brian
San Antonio, TX
Home of the 1999 & 2003 NBA Championships
10D owner and love sharp images.
http://www.pbase.com/drip

Click to expand...

LooseCanon said:

Wow, that 200/2.8 + 2x tc II combo looks awfully good. Makes me
want to get another 200/2.8. Is that the Mk. 1 or Mk. 2 200/2.8?
Could you post the uncropped images, just to compare the corners
and overall contrast, etc? Thanks!

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LooseCanon said:

drip said:

I happen to have three 2X TC's at this moment: Sigma 2X (brand
new), Canon 2X I (like new) and Canon 2X (brand new). So what else
is better than comparing them. Here's the typical result after
several rounds of testing (pardon the purple blooming):
http://www.pbase.com/image/24393419/original
For Ultimate image quality, especially in the corners, Canon 2X II
is the way to go. The ever slightly sharper performance may be
worth the money for some perfectionists.
--
Brian
San Antonio, TX
Home of the 1999 & 2003 NBA Championships
10D owner and love sharp images.
http://www.pbase.com/drip

Click to expand...

Click to expand...

drip said:

mcfly said:

Thanks.
How this combo (200L + TC2x) improves stopped down to F/8 and F/11?

Click to expand...

There's no need to. Those are untouched 100% crops from 150 feet
away. Try doing a little USM on them, they're so sharp that they'll
hurt your eyes, especially the crop from the EF 2X II.
--
Brian
San Antonio, TX
Home of the 1999 & 2003 NBA Championships
10D owner and love sharp images.
http://www.pbase.com/drip

Click to expand...

KevinM said:

Brian,

I have read here that the Canon TC's slow down the focusing speed
and the Sigma shows no apparent difference.

Did you observe any differences ?

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KevinM said:

Brian,

I have read here that the Canon TC's slow down the focusing speed
and the Sigma shows no apparent difference.

Did you observe any differences ?

KevinM

Click to expand...

Roy said:

It may be a little off topic but on other pages you show a Tamron
1.4x and a Canon 1.4x. Tamron looks soft, how does the Sigma
compare?(If you have one). Sigma and Canon I look very close in the
2X. I have the 1.4x Sigma. It's kinda still on topic just the 1.4x.

Just Curious
Roy

--
Stop pointing fingers and lend a hand.

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KevinM said:

Brian,

I have read here that the Canon TC's slow down the focusing speed
and the Sigma shows no apparent difference.

Did you observe any differences ?

KevinM

Click to expand...

Lars Johnsson said:

I have both Canon & Sigma TC. I use them on my 135 L and 300 f/4IS
lenses. I can't notice any difference in speed between them. If the
Canon slows down the speed it must be so little that you can't
notice it.
Lars

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