| I don't have much wedding experience, but I agree with what Matthew said,
For the one wedding I assisted with I used a Pentax 55mm f1.8 on my Pentax body, and a Sigma 24 - 70 f2.8 lens on my other body.
Both these lenses are considered as fast (f2.8 or smaller numbers) very good quality lenses.
And I couldn't have gotten some of the shots without that feature. Mostly because we weren't allowed to use flash during the ceremony.
A good flash made the rest a nice easy shoot. |