DC.watch (google translation) interviewed the designers of the GM lens series. THe article contains a lot of technical details. Here are just a few interesting bits:
– The GM lens series development started at the time of the Sony A7rII launch. And it took only 1 year until the first GM lens was launched.
– GM lenses are designed for maximal performance and size is not important. But they try to keep the size within reasonable limits.
– The most important factor was to realize high-resolution and at the same time high quality bokeh
– The conventional standard lenses have a resolving power of 30 lines/mm while GM lenses can do 50 lines/mm
