Help please with new 15-85mm

Started Oct 12, 2012 | Discussions thread
AC1
AC1
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Re: Help please with new 15-85mm
In reply to Limburger, Oct 17, 2012

Limburger wrote:

AC1 wrote:

Limburger wrote:

technic wrote:

AC1 wrote:

A good sample of the 15-85 should peform superbly, pretty much up with any L lens on a crop camera. In my experience it doens't need any pampering and it gets it right 99% time. I use manual select spot AF. It is probably my most reliable focusing lens, even ahead of my 70-200L. Never needed MFA.

Here is an example test comparing my 15-85 against a friend's brand new 24-70L II - because we suspect his 24-70 might be 'off'. But as you can see the 15-85 is far from 'off'. Maybe you've got a poor sample (does happen)?

Focus point was on key in the shield emblem top of label.

I hope you are joking, and not seriously suggesting this image proves how good your 15-85 is. I can see the border/corner resolution is perfect


If the 15-85 is ahead of your 70-200L your L is slacking. I got both. And between 70-85 the EF-S is simply no match in terms of contrast and colours let alone build quality and AF.

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Cheers Mike

I also have both. I intepreted this as a discussion on sharpness rather than other measures. See here for yourself evidence that max sharpness/MTF/resolution of both lenses is very similar - in fact 15-85 is slightly better than 70-200 (max score 2,548 vs 2,542).

http://www.photozone.de/canon-eos/465-canon_1585_3556is?start=1

http://www.photozone.de/canon-eos/449-canon_70200_4is_50d?start=1

Can they back it up with pictures too? In a lab you produce figures a lens is supposed to produce pictures.

-- hide signature --

Cheers Mike

No I don't have side by side examples to hand because I've never needed to test my 15-85 against my 70-200L. But I posted the comparison I do have with another L lens, the 24-70.

But then you suggested this was wrong and my 70-200 should well outperform my 15-85, so I posted the lab results showing the 15-85 is a very strong performer.

But now you want more pictures. Whereas if I had posted more pictures you have wandered lab test results!

Please just accept that a good copy of the 15-85 is a wickedly sharp lens, comparable with L lenses on a crop camera (as proven by my own experience with pictures and the lab tests I posted).

 AC1's gear list:AC1's gear list
Canon PowerShot S95 Canon EOS 7D Canon EF 50mm f/1.4 USM Canon EF-S 10-22mm f/3.5-4.5 USM Canon EF-S 15-85mm f/3.5-5.6 IS USM +2 more
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