my cousins getting married on saturday and i thought i`d go and take a few candid shots. (just for practice)
I will only be taking 1 lens and i cannot decide which will be more usefull
so i`d like any suggestions you lot have
heres what ive got and what i think are the pros and cons
Sigma 70-300 apo dg f4-5.6
pros unobtrusive - good range for portraits - good image quality
cons slowish to focus - not too good in low light - group shots will be difficult
Canon 17-40L f4
pros can fit a lot into frame for group shots - can get a lot of the church/landscape into frame too - great image quality
cons obtrusive - not too good for portraits - distortion?
Canon 50mm 1.8 mk2
pros good for low light (can use indoors too if i can get close enough) - great image quality
cons no zoom - maybe not wide enought for groups- slightly obtrusive
Canon 18-55 kit lens
pros slight longer range than the 17-40 - not fixed at 50mm
cons not good in low light - not sharp enough for my liking
thats my whole arsenal there
please let me know which one you would take and why
p.s. i only have one body also
I will only be taking 1 lens and i cannot decide which will be more usefull
so i`d like any suggestions you lot have

heres what ive got and what i think are the pros and cons
Sigma 70-300 apo dg f4-5.6
pros unobtrusive - good range for portraits - good image quality
cons slowish to focus - not too good in low light - group shots will be difficult
Canon 17-40L f4
pros can fit a lot into frame for group shots - can get a lot of the church/landscape into frame too - great image quality
cons obtrusive - not too good for portraits - distortion?
Canon 50mm 1.8 mk2
pros good for low light (can use indoors too if i can get close enough) - great image quality
cons no zoom - maybe not wide enought for groups- slightly obtrusive
Canon 18-55 kit lens
pros slight longer range than the 17-40 - not fixed at 50mm
cons not good in low light - not sharp enough for my liking
thats my whole arsenal there
please let me know which one you would take and why
p.s. i only have one body also
