fine-camera-lenses Teleconverter End Interrelated Guideline

I’ve read mixed reviews for this teleconverter and there is now a newer model available. I can tell you I’m going to keep this TC-20E II. I’m happy with the results when I use this device with my D700 and my 70-200 F2.8 VRII lens. I only use this in good light but when I need the 400mm reach this baby comes in handy. I don’t often need this reach so buying a Nikon 200-400 zoom for $6,000 isn’t going to happen! For now I’m happy with the TC-20E II.


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What focal length will I end up with, with a Canon XTI camera, a 70-200mm lens and a 1.4 teleconverter?
What focal length will I Teleconverter End end up with, with a Canon XTI camera, a 70-200mm lens and a 1.4 teleconverter? I'm told that a Canon digital XTI camera has a focal multiplication factor of 1.6 which makes a 70-200 lens a 112-320. What happens when I add a 1.4 teleconverter to the lens?

fine-camera-lenses Teleconverter End Interrelated Guideline