Yes, it needs almost perfect light. I try not to use the 1.4 on my 70-200f4 because of that. At least my crop body gains 1.6. I never found that lens very useful on full frame.
Yes, it needs almost perfect light. I try not to use the 1.4 on my 70-200f4 because of that. At least my crop body gains 1.6. I never found that lens very useful on full frame.