During my visit noticed a large tortoise or turtle at the edge of the pond ... I am not sure if he should be there [any thoughts?]
Early this morning I purchased a Voigtlander 40mm F1.2 lens and because it is a manual focus lens it is relatively inexpensive but difficult to use.
I went to my local supplier with the intention of getting the Zeiss Batis 40mm but they were out of stock so I decided to consider the Sony 16-35mm GM but as the price was Euro 2600 I decided to consider the Sony 16-35mm F4 which cost Euro 1300. I was about to purchase the F4 but as an afterthought I decided to have a look at the Voigtlander 40mm F1.2 and as I was impressed I decided to buy especially as it cost less then Euro 1000.
Based on using it for about three hours I can say that at F1.2 I found it almost impossible to get sharp focus and I also noticed a degree of chromatic aberration [colour fringing] which was easy to remove Lightroom. At F22 I noticed an amazing amount of dust on my sensor and there were two especially large bits of lint or fluff.
Voigtländer was a significant long-established company within the optics and photographic industry, headquartered in Braunschweig, Germany, and today continues as a trademark for a range of photographic products.
Since 1999, Voigtländer-branded products have been manufactured and marketed by the Japanese optics and camera company Cosina, under license from RINGFOTO GmbH & Co. ALFO Marketing KG.
Cosina started producing cameras and lenses under the Voigtländer brand in 1999, when it introduced a new M39 mount body and lenses. It has since produced a prodigious variety of these lenses in M39x26, Leica M mount, Nikon S rangefinder mount (some fully usable with Contax RF bodies), and SLR mounts including M42 and Nikon F. Cosina produces hoods and accessory viewfinders for many of the lenses. Note that while the lenses feature familiar Voigtländer names, the optical formulas are all new.
Presently, manual focus Voigtländer lenses are available, or will soon be available in four series: the E-mount series for Sony E-mount, the VM series for Leica M-mount, the SL and SL II series for several 35mm single-lens reflex camera mounts (Canon EF-mount, Nikon F-mount, and Pentax K-mount), and the MFT series for the Micro Four Thirds mount. Legacy lenses for the M39 lens mount, Nikon S-mount and M42 lens mount have been discontinued.