Archive 2005 · 24-70 f2.8 vs. 24-105 IS f.4 cont.

Tom_W
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p.2 #1 · 24-70 f2.8 vs. 24-105 IS f.4 cont.

Bellavance wrote:
Because of its f/2.8 aperture (low light performance and depth of field control, plus I know it's good) I wouldn't sell my 24-70/2.8L, but might also get the new 24-105/4L IS for the IS and the extra range.

Pierre

I'm more inclined to add than to replace also. My 24-70 is just too good a copy to replace it.

Truth be known, for walking around all day outdoors, I carry a 28-105 f/3.5-4.5 lens. It has good color and contrast and is sharp stopped down. Even CA isn't very bad at 28 mm. Distortion is another story, but through the middle range of zoom, even that is decent.

It's not a wide-open pretty bokeh lens, though. It'll do in a pinch, but you'd better have a distant background and be able to stop down 1/2 stop.

Edited by 10DFT on Dec 27, 2005 at 12:47 PM GMT

Dec 27, 2005 at 12:43 PM

Tom_W
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p.2 #2 · 24-70 f2.8 vs. 24-105 IS f.4 cont.

yclui wrote:
The bokeh quality of 24-105L is known to be inferior. Comparison with my Tamron 28-75 :

http://yclui.com/Photo/boken_24-105L_vs_Tamron_28-75.jpg

I do notice a bit harder edge on the 24-105. What aperture were both lenses at? I assume that the 24-105 was wide open.

Dec 27, 2005 at 12:46 PM

Tom_W
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p.2 #3 · 24-70 f2.8 vs. 24-105 IS f.4 cont.

Bellavance wrote:
Am I right in thinking that, on the 20D, you get higher center focus precision with an f/2.8 lens?

Is it similar with the 5D?

Pierre

Yes, the 5D's center focus point as well as two of the "invisible" focus points all respond with higher precision to an f/2.8 or faster lens.

In practice, I haven't noticed the difference, but I haven't tested it either.

Dec 27, 2005 at 12:48 PM

alfarmer
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p.2 #4 · 24-70 f2.8 vs. 24-105 IS f.4 cont.

>> So many of the 24-70 are not sharp @ f/2.8 so IF I were to do
>> either again (I owned both) I would get the 24-105.

So are the majority of 24-105's sharp at f/4? If you have to stop it down to f/5.6 or f/8.0 then it's a MUCH worse option than the 24-70L.

And don't forget the added AF benefit with f/2.8 lenses...

ALF

Dec 27, 2005 at 01:01 PM

khiromu
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p.2 #5 · 24-70 f2.8 vs. 24-105 IS f.4 cont.

24-105 is a little bit over pirced in the US, I think.

Dec 27, 2005 at 01:39 PM

RGS65
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p.2 #6 · 24-70 f2.8 vs. 24-105 IS f.4 cont.

I would never sell a f 2.8 lens for an f 4 lens...period.

Dec 27, 2005 at 03:53 PM

RGS65
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p.2 #7 · 24-70 f2.8 vs. 24-105 IS f.4 cont.

Me_XMan wrote:

Say it ain't so


	http://www.softechie.com/Photos/Samples/CanonLens2470f28L/20051225Christmas_173.jpg

Photo taken with 24-70L.

BEAUTIFUL shot Me_XMan!

Dec 27, 2005 at 04:00 PM

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