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Originally Posted by Stephen Fox
I assume on board flash fixes shutter at 1/60th. My problem on initial TC test was shutter speed at high focal lengths. TC test using 70-200 employed higher shutter speeds due to external flash and shorter focal lengths.
I'll look forward to the shoot out between 70-200 and 300, try to use a subject with lots of detail and move 200 closer to frame the same as 300.
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Stephen,
If the shutter speed is set to sync speed, then flash will predominate. Although the shutter speed is low the burst of light from the flash will, depending on subject distance and of course the power of the flash, be in the region of 1/1000 sec + throught to around 1/20,000 sec if powerfull flash is used close up.
The great thing with the subject taken is it has sharply defined horizontal lines that will show any mirror bounce effect quite obviously.
Agree a comparison would be nice as the 300mm may join the wish list of the future.
Don