300 difference (at initial pricing) and we have AW level sealing (you can hold it under a running tap), our Shake Reduction gives 5 stops and 85mm is in the goldilocks zone. We also have Pixelshift to enhance the resolving power, and I will try this out with the Astrotracer function.
If you goto the special site and look under the development (engineers) tab, they did call out one specific 85mm lens as their benchmark, namely one with an 86mm front element, which to me sounds suspiciously like the OTUS. Good high level benchmark. But it's down to personal preference, you enjoy and like your Canon stuff, I enjoy and like my Pentax stuff. It's good to have choices.
If you goto the special site and look under the development (engineers) tab, they did call out one specific 85mm lens as their benchmark, namely one with an 86mm front element, which to me sounds suspiciously like the OTUS. Good high level benchmark. But it's down to personal preference, you enjoy and like your Canon stuff, I enjoy and like my Pentax stuff. It's good to have choices.
Pentax K-3 | DA*16-50/2.8 | DA*50-135/2.8 | DA TC1.4 || Pentax K-1 | Carl Zeiss Distagon T* 2.8/25 | FA31/1.8 Limited | FA43/1.9 Limited | FA50/2.8 Macro | HD D-FA*50/1.4 | K55/1.8 | HD D-FA*70-200/2.8 | FA77/1.8 Limited | A100/2.8 Macro