For those of you with this TC, I am looking for some guidance. I was shooting rugby last weekend with this combo and metering was fine, pictures came out how I wanted, etc, even with terrible rain and clouds.
Yesterday I was shooting in light cloud cover and for some reason the same combo with all the same settings was greatly overexposing the image. Both times I was shooting in Av, ISO 800, F4 (which the D300 reads as 2.8...). Any idea why this is happening?
Note: I unfortunately deleted the overexposed images yesterday then just took the TC off since we were on a short field.
