Excerpt: I previously was using ef lenses with a metabones 4/3 to ef adaptor. I did not like the way my images were turning out. I decided to go ahead and buy some lenses that were made for the camera. I was very happy with this decision.
Excerpt: I use GH4 for video with metabones speedbooster. I needed to do hdr timelaps sunrise and sunset shots. This lens was highly recommended. It did deliver. I will not use this for video. Metabones speedbooster is a must for GH4.
Excerpt: This lens is a 24-70mm focal length equivalent for Micro 4/3 format, which is a good all-around range for most uses. I have been using it on my Panasonic GH4, and optically it's very sharp, even at f/2.8. It is also extremely lightweight and small, especially when compared to full-frame lenses.