Introduction Sony’s full-frame mirrorless 36-Mpix A7R and 24-Mpix A7 models have the potential for high image quality but that’s only half of the imaging chain – they require high-grade lenses to deliver on that promise. The bodies are of course much smaller than a full-frame DSLR and Sony has designed the lenses to match.As a stabilized model, the mid-range, moderate speed Zeiss Vario-Tessar T* 24-70mm f4 ZA OSS is relatively compact at 2.87 x 3.72" (73 x 94.5 mm) but at 15.17 oz (430 g) it’s a fair weight.With a $1,199 price tag it’s squarely aimed