Tim Munro wrote:
>
> Sounds like a reasonable assessment there Geoff. I still can't quite fully
> understand the impact of the filter on the sensors. Your example is quite
> correct though. If the light level drops around 2 stops it is hard to
notice
> the difference in AF performance, whereas when I fit the 2x TC the
> difference is immediately obvious. As I shoot around 50 - 100 rolls a
month
> at the track in demanding conditions I have become very sensitive to this
> aspect of my equipment.
> I will be interested to hear Mat's response as he sounds like he has had
> first hand experience with this.
Tim,
Is the reduction in autofocus speed the same with the 2X as with the 1.4X?
Cheers
Keith
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