After testing, I am confident to say this lens is sharp all the way from F2.8 to F16 and only falls over when you each F22.
My test wasn’t exactly scientific. I’m not a pixel peeper. I don’t buy lenses just to test them. I buy lenses to use them.
But, anyway, On a bright sunny morning I found a concrete wall with the light just hitting it at the right angle to really show up the details on the building, so, setting a focus point and standing, I took the same shot all the way from F2.8 to F22. These images were not in any way edited in post.I only converted the DNGs in Lightroom. My Focus point for all images was the “Enjoy” sign. I’ve close cropped these in to see the fine details, the full res images are at the bottom of this post. You be the judge…Enjoy!
The Elmarit is a little wonder. When focussed correctly, this small Leica lens is really sharp from F2.8 to F16 in my view, and difficult to tell just looking at sharpness on the focus point.
100% Crop Test
I’m a bit sad I haven’t used this lens much. It has been nearly a year since I last took it out, and a longer time than that on Digital. Why? Because I was snobby and had other lenses like a 50mm Summicron, and most recently, a 35mm Summilux. Also, I haven’t had much practice in the 28mm wide lens range so kept on putting it aside.
But…No more. I want to do better with this lens. I did a review of this lens a few years ago here.