EF 400mm f/5.6L USM vs EF 300mm f/4.0L IS + TC1.4

Started Sep 16, 2011 | Discussions thread
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trulandphoto
trulandphoto Contributing Member • Posts: 782
Re: 400mm f/5.6L vs 300mm f/4.0L IS - a change of mind

R2D2 wrote:

trulandphoto wrote:

So, I decided to try out the 300 f/4. I just love it.

Congrats. The 300 f4L IS is a great little lens.

I do notice though that both of your samples are somewhat backfocused. Can't tell if it's technique (those are Tough AF targets) or if the lens needs MFA. You'd have to do some controlled tests.

For sure, the maple seeds were ridiculous. It was extremely windy and the branch was moving about 3 feet in every direction. I used AI Servo and IS and just tried to follow it, shooting at high speed.

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Canon PowerShot G1 X Canon EOS 7D Canon EOS 5D Mark III Canon EOS Rebel SL1 Canon EF 70-200mm f/2.8L USM +11 more
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