Move to FF lens question

Started Feb 23, 2013 | Discussions thread
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Donald Duck
Donald Duck Regular Member • Posts: 308
Re: Move to FF lens question

Sovern wrote:

You must have heard the argument that the 24-105 can do more than the 17-55 on crop.

I also don't buy it. Why don't we go all of the way and say that the 24-105 also doesn't do what a f2.8 lens does on medium format.

17-55 is a faster lens by a stop.

It lets less light in, by about 1/3 stop (the 17-55 on crop, the 24-105 on FF). The rest is ignorance.

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