I hate that I didn't buy this lens sooner. It's a perfect match for the Sony A7(r)(s) II series of cameras both old and new and I'm absolutely in love with it.
The lens is only F4, but I would like to think a lens like this would be used mostly by landscape or architecture photographers where wider apertures would not really be needed. But for those occasions when you do need the lens in low light and are going handheld, the OSS saves the day.
There are a lot of things I love about this lens, and very few things I don't like, making this lens one of my favorite, go-to lenses with the Sony A7r II.
Some of the strangest weather I've experienced in Southern California this last week. We were driving south on the 405, it was 100 degrees outside, then 10 minutes later, it was 75 and raining.
Usually, when we get this crazy weather, we also get insane sunsets. I'm glad I was able to make it to Huntington Beach. I was thinking the sunset was going to be a dud, but nature gave a nice surprise.
Now that the Sony A7r II has 42 megapixels of madness, it's a good idea to look at how it handles diffraction with a few lenses.
Right now the consensus is that your aperture and megapixel count will have an impact on your image detail due to diffraction. Shooting higher apertures like f16-f22 will result in softer images vs shooting at f4-f8. Also more megapixels will impact how your images look at higher apertures.
However, from what I've been seeing from doing various diffraction tests with different cameras and different lenses, it's not only aperture and megapixel count that impact diffraction.