As a photographer, getting the right gear is very important and not always easy. I have literally tried many different lenses to see which ones I like best. After doing tons of research, I decided to purchase the Sony 85 1.8 vs. the Sony 85 1.4 GM. Yes, the 85 1.8 might be a little slower, but the over-all performance competes very well next to the 85 1.4 and not to mention, MUCH cheaper. I am a satisfied customer.