Following Sigma's announcement this morning of four new lenses, Zeiss slashed prices by up to nearly $1,000 on three of their popular full-frame lenses — all without even knowing the price Sigma will charge for its new lenses.
Right now, you can get Zeiss' 15mm f/2.8, 18mm f/3.5, and 135mm f/2 for $951, $400, and $623 less, respectively, than you could yesterday. Needless to say, Zeiss' lenses aren't cheap to start with, but these are still significant discounts over the usual prices.
DxOMark recently placed Sigma's 85mm f/1.4 Art lens above Zeiss' record-holding Otus. Say what you will about lab tests, but it's becoming more and more apparent that we no longer have to sacrifice image quality for price. Sigma's still-untested newest lenses are likely to set new records, as the 14mm f/1.8 already does on its feature combination alone.