Recently I was picking between the 25mm and the 45mm. Recently i've realized that I may need a different lineup. The 75mm is on my list of lenses to have but at that price point I may need to settle on a cheaper lens for tele prime purposes such as the 45mm or 60mm. In the meantime I am looking at the 20mm lens and the 30mm Sigma lens to get me started on the wider range. I only have a kit lens so far. Not a newbie to photos or mirror less cameras. I had owned NEX in the past. I want two primes but I am not sure where to start. I keep on coming back to the 45mm. What are your suggestions for someone who can't afford the 75mm for a while? I also don't want to end up with too many lenses. One zoom and two primes for the near future is all I want.