Please clarify extender magnification for me...

Started Nov 29, 2012 | Discussions thread
Dave Seeley
Contributing MemberPosts: 762
Like?
Re: Please clarify extender magnification for me...
In reply to msowsun, Nov 30, 2012

msowsun wrote:

tonyjr wrote:

Assuming the 1.4 is canon , there is a big difference between the 1.4 II and the 1.4 III - mostly in IQ on model II lenses [ bigger difference on the 70-200 mk II the on the 70-200 mk 1]

Your information is incorrect.

Older lenses will benefit only from the new glass design of the just announced mark III teleconverters. As of the AF improvement they will be the same as mark IIs.*

tonyjr said there was a big difference mostly in IQ ... and it seems by the canon statement that the only benefit of the iii design is the new glass - an implicit acknowledgement that there has been an improvement in IQ....no?  True that there would be no benefit to AF from ii to iii.

-- hide signature --

--

pro photo-illustration
http://www.DaveSeeley.com/
current kit: 5DmkIII, 5DmkII, 17-35/2.8L, 24-105is/4.0L, 28-70/2.8L, 70-200is/2.8L, 100 macro/2.8L, 50/1.2L, 2x II extender, 8x550ex Speedlites, Phottix Odin Flash Triggers

Reply   Reply with quote   Complain
Post (hide subjects)Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow