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  Previous versions of abqnmusa's message #11255960 « Choosing between 300 4 L IS or 400 5.6 on 7D »
  

abqnmusa
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Re: Choosing between 300 4 L IS or 400 5.6 on 7D


This 1.4X TC will work with a 7D and 400mm F5.6 for 560mm F8
focus is slower but usable

Tamron SP AF 1.4x Pro Teleconverter

on a 5D III the combination works well for birds in flight


Jan 09, 2013 at 05:20 PM





  Previous versions of abqnmusa's message #11255960 « Choosing between 300 4 L IS or 400 5.6 on 7D »