I'm new to photography so I would like to seek some enlightenment regarding a dilemma that I've been facing regarding some choices of purchase. Of course, I have a budget that allows either of the above mentioned, which explains the predicament that I'm in.
Initially I liked a lens that will provide relatively great low-light shots so I was contemplating about 24-70L as the f2.8 seemingly allows more light than its more focal length zoom cousin at f4. And not to mention the promising bokeh.
Now that I've reconsidered my priorities (and putting aside situation where flash lights are not allowed or suitable), I am wondering if getting a 24-105L with EX580II will compensate for the amount of light that would otherwise be absorbed by the 24-70L cousin efficiently? Because sooner or later I'm gonna need a flash as I progress into the world of photography, so I thought maybe this combination will be a greater choice.
And with the built-in flash, the limit in shutter speed is fastest at 1/200, will I get faster speed if I couple my 400D with EX580II in use, like 1/2000 for capturing with really fast motion and yet get the light advantage of the flash?
The bokeh issue will take care of itself when I eventually save up enough for 135L, or just stick with my 50mm 1.8 for the moment.
I'm trying not to look into lens of other brands, but if based on your experience you have really great recommendations with equivalent performance[focusing speed, image quality, etc] at a lower price, I'll love to hear your feedback too.
Thanks in advance for your kind advice.