Reading resolution charts comparing MFT lenses to FX lenses

Started Mar 29, 2013 | Questions thread
Anders W Forum Pro • Posts: 21,468
Re: Reading resolution charts comparing MFT lenses to FX lenses

Dr_Jon wrote:

The only reason I'm carrying on is also to provide debate for third parties, I have no hope of changing your mind and don't really have an issue with that, I'd just like people to see both sides and make their own minds up.

BTW the Nikon 14-24 is known to be awful for distortion which they seem to have left in to get extra sharpness, hmmm that sounds familiar.

It does, doesn't it.

It's certainly not a valid example for comparison unless you find the absolute worst m43 lens to compare it to. (I considered getting one with an adapter to use on my Canon because of all that sharpness, but decided I'd rather go with the Canon 14/2.8 which has a lot less distortion and so avoid losing some of the sharpness correcting it or living with the distortion.)

While the Nikkor 14-24/2.8 may be worse than some others when it comes to distortion, my general point is that FF WAs, particularly rather strong WAs, are hardly free from distortion although they are likely to have less, prior to software correction, than MFT equivalents. What that means is that the difference between lenses designed to be software-corrected for distortion (as are Oly and Pany MFT WAs) and those which are not (FF WAs) is less than one might first think. As a rule, we are talking no more than a couple of percentage points and the impact of that difference on the final resolution figures is really marginal.

 Anders W's gear list:Anders W's gear list
Panasonic Lumix DMC-G1 Olympus OM-D E-M5 Olympus E-M1 Panasonic Lumix G Vario 14-45mm F3.5-5.6 ASPH OIS Panasonic Lumix G Vario 7-14mm F4 ASPH +28 more
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