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Topics - skinkfoot

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Lenses / Using two Canon EF 1.4X entenders
« on: February 13, 2013, 04:45:00 PM »
Does anyone here use two 1.4X extenders? If so, can you tape one set of pins and say focus at f8 on a canon ef 400 L f5.6? 

Right now I use a 5d mk iii and I find it quite capable with the extender taped .  I guess I am thinking, when the new firmware comes in the spring, can I feasibly have a 800 f8(f11 reality)? I understand that the image may degrade, and it will be slower, but I was wondering if anyone with 1d series has tried this?

EOS Bodies - For Stills / Upgrade from 40D to 5d mkii
« on: September 27, 2012, 08:06:48 PM »
Is the 5d mkii focusing better or worse than the 40d for birds in flight?  I understand that the center point is more accurate, but is it faster than the 40d?  I only shoot birds about 25% of the time, I use for BIF a canon ef 400mm L f5.6 and for stationary birds an old Heinz Kilfitt 400mm f4.0 manual focus lens as well.  The other 75% of the time I know the 5d mkii would fit me perfectly. 

 I am happy with my focusing on the 40d with the smaller aperture (f8.0-f11.0) required for birding.  As long as it is at par I will be happy. 

I understand that the 1dx 1dmkiv and 5d mkiii are better cameras.  I have just installed a new furnace new air conditioning and have completed a basement reno(aka I have no cash flow),  I am finding the cheap price of the 5d mkii very tempting, And I would like to know if anyone else has made the switch from the 40d?

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