After a lot of pondering and decision making I finally caved and purchased a new addition to my lens grouping, the Leica Tri-Elmar 16-18-21Asperical.
As primarily a landscape shooter I've relied on my Zeiss 21mm and 15mm Distagons as my primary wide/ultra-wide setup. As great as these lenses are they are also heavy and bulky which makes them difficult to travel and hike with especially when trekking up the mountains. I've been searching for a set of replacement lens and considered the Loxia 21 and the Voigtlander 15. I've owned the Voigtlander 15 III, it was sharp and sample was pretty good in the corners, not as good as the 15 Distagon but certainly useable. I had a miss-hap with that lens and now de-centered and likely not worth the repair cost, I also don't want to go through multiple samples in order to find one that meet my requirements.
The Leica is really small and light and as with most Leica Ms extremely well built, click stops are nice and crip and the detachable metal hood is also great. I'm not a bif fan of the focus tab, I would have preferred a proper knurred focus rig so that may take me some time to get use to. The lens included a customer filter adapter which will allow it to use the Lee filter system, a nice touch. Overall very impressed with the lens, I'll need to go out this weekend to run some test samples, weather permitting.
Here is a photo of the lens attached to the A7R2 and the TechArtPro Autofocus adapter.
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