1.4X TC

[csnudelman]

Let me see if I understand correctly. The current EF 1.4X II can be used on prime "L" lenses of 135mm and longer. The EF 1.4X that it replaces could only be used on "L" lenses of 200mm and longer. Is my thinking here correct? Also, what , if any, difference in image quality between the two?

[Dante King]

you might want to check out the TC thread at the top of this forum. :)

[csnudelman]

you might want to check out the TC thread at the top of this forum. :)

I did, and didn't see anything that addressed the issue.

[formula4speed]

The only thing added to the 1.4 TC was weather sealing, they both work on the same lenses. The 2x TC was changed optically.

[CyberDyneSystems]

I did, and didn't see anything that addressed the issue.

This is exactly how it appears in the above mentioned T-Con Sticky thread;


Mk I Vs. MkII Versions

The current models of Canon EF T-cons are the "Mk II" versions.

Differences between the new MkII and the older Mk I T-cons include the following.
Weather sealing was added to both
The 2X had a complete overhaul of the optics
The 1.4X remains the same design optically adding only the weather sealing and some new coatings.
The MkII 2X T-con has been redesigned to allow "stacking" of the 1.4X behind it. This was not possible with the Mk I 2X.

[csnudelman]

No wonder I didn't see it, it was in plain sight. I would guess then that a NEW 1.4X TC before the current design would be a good deal at $150.