maemo.org - Talk - View Single Post - Canon Loyalty program: upgrade to a working Canon with a dead Canon + $

	GeneralAntilles	2008-08-28 , 21:18
	Posts: 5,478 \| Thanked: 5,222 times \| Joined on Jan 2006 @ St. Petersburg, FL	#14

Originally Posted by drizek

Kinda OT, but does getting a lens with a low aperture give you blurry pictures, or is 1.4 on that lens equivalent to, say, 4.5 on a regular lens?

In other words, does it reduce the FOV even more or is it just "faster"?

I'd recommend reading up a bit on the subject. Here and here.

But, yes, a wider aperture also reduces your depth-of-field (i.e., increases background blur) as well as increasing the amount of light that makes it to the sensor, which is a desirable effect in most cases.

That's the purpose of the "A-DEP" (automatic depth-of-field) feature on the Canons (not sure what other manufacturers call it), it gives you the lowest possible aperture to keep as much of the scene in focus as possible while avoiding camera shake.

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