EF 24mm f/2.8 & EF 28mm f/1.8 USM

[larryboi]

hi! i need some help!

is this lens good? as above.
and is advisble to get EF 28mm f/1.8 USM instead of EF 24mm f/2.8.
wat are the difference?

thanks in advance!

[Kit]

Originally Posted by larryboi hi! i need some help! is this lens good? as above. and is advisble to get EF 28mm f/1.8 USM instead of EF 24mm f/2.8. wat are the difference? thanks in advance!

Isn't it obvious? The focal length is different, so are the aperture opening...

[larryboi]

Originally Posted by Kit Isn't it obvious? The focal length is different, so are the aperture opening...

as in is there much difference?

[Headshotzx]

f/1.8 lets in twice as much light as f/2.8, which means you can capture shots with twice as fast a shutter speed for the same exposure. This will really help.

[calebk]

Originally Posted by Headshotzx f/1.8 lets in twice as much light as f/2.8, which means you can capture shots with twice as fast a shutter speed for the same exposure. This will really help.

Actually, 2 1/3 more light than f/2.8. f/2 is one stop faster, which means twice as much light, f/1.8 is 1/3-stop faster than f/2.

That said, neither lens is sharp wide open. For the 28mm, some copies are notoriously soft, and only become decent at f/3.5. If you're lucky, you can get a copy that's sharp at f/2.5 or f/2.8.

I don't know much about the 24 f/2.8, although I know the 24L is a heck of a lens.

To Threadstarted (TS): as to whether it is advisable to purchase either of these lenses, how would we know? We don't even know what kind of photography you do.

[larryboi]

Originally Posted by calebk Actually, 2 1/3 more light than f/2.8. f/2 is one stop faster, which means twice as much light, f/1.8 is 1/3-stop faster than f/2. That said, neither lens is sharp wide open. For the 28mm, some copies are notoriously soft, and only become decent at f/3.5. If you're lucky, you can get a copy that's sharp at f/2.5 or f/2.8. I don't know much about the 24 f/2.8, although I know the 24L is a heck of a lens. To Threadstarted (TS): as to whether it is advisable to purchase either of these lenses, how would we know? We don't even know what kind of photography you do.

Opps so sorry. i wanna take family shots. like during family gathering and all that.
sorry i'm new here. =/
i dont really understand wat u mean sharp "wide open" and "some copies are notoriously soft"

[Headshotzx]

What camera body d'you have? 350/400D? 30/40D?

[larryboi]

Originally Posted by Headshotzx f/1.8 lets in twice as much light as f/2.8, which means you can capture shots with twice as fast a shutter speed for the same exposure. This will really help.

thank you!

[larryboi]

Originally Posted by Headshotzx What camera body d'you have? 350/400D? 30/40D?

350D.
sorry i'm new here!