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| p.1 #11 · Zeiss Sonnar 2/135 ZF/ZE Pics Thread |
Shock horror - MTF data predicts lens quality..who knew?
Rodluvan, one of the reasons some of us could be so confident about the superior performance of the new Sonnar as compared with the 100MP is that it is exactly *not similar* in MTF response...
The following numbers are either 'almost indistinguishable' or very different:
100MP f2: 58-80-89
135mm f2: 63-83-94
100MP f4: 70-86-93
135mm f2: 82-92-96
These are at IC.
And at f4 the Sonnar is stronger at the frame's long edge than the 100MP is in the centre! Very few lenses see north of T=80% for the fine detail 40lpmm.
Though the 135/2's amazing performance does drop...Show more →
I'm not sure exactly what you're arguing (I'm going to assume you're not equating better looking MTF charts with 'superiority' in a general sense). However, the numbers you're citing mirrors my assumption that they are very close indeed (within a few percent, about the same as the 100MP bests the 135 in distortion) and they're both in a very top, which is why I don't care much for pixelpeeping as I'm sure they'll both 'bring it', but would like to see samples of focus transition and character (which I can't interpret form MTF charts). Also, as the 135 is for many intended as a portrait lens, it would be interesting to see if effort have been put in place to develop character fitting for such a lens, just like I prefer the 1.4/85 for portraits over the 100MP.
But less talk from me, let the photos do the talking and we can all have our difference of opinion when the pudding is on the table.