What do MTF curves mean in the real World? For example, comparing the new Schnei der XL 110 at http://schneideroptics.com/large/super_symmar/110xl/mtf2.html with the Schneider Angulon 75 at http://schneideroptics.com/large/super_angulon/75/m tf2.html I see very little difference, if at all, the 75 Angulon has better reso lution than the 110 in the corners. Yet everyone seems to agree that the XL 100 is so much sharper than other LF lenses?!?
Another question: Are lp/mm and cycles/mm the same? The curves on the Schneider page are for 5, 10 and 20 lp/mm. Hasselblad publishes MTF with 10, 20, 40 cycles /mm for example see the 100CF at http://www.hasselblad.com/products/lenses/lens_ cf/cf100/index.html If lp/mm and cycles/mm are the same, this would suggest that the Hasselblad has twice the resolving power of the Schneider lens? Hard to imagine...
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