Zeiss Touit First 2 Lenses

Cameras come and go. Lenses are forever.  – Anon
Knowledgeable photographers understand that in the digital era cameras may come and go, but lenses are the cornerstone of quality imaging. Having the latest sensor will naturally contribute to better image quality, but over the long term whatever camera you're shooting with today will be superseded before too many years have passed. That's just the nature of semiconductors, and like it or not that's the cornerstone of this industry.
But, the lens used plays as big if not a bigger role in contributing to image quality and baring some mishap will likely last for many years, if not decades. Indeed a quality lens designed for digital from the get-go is unlikely to be surpassed in image quality for quite a long time to come.
Manufacturer's lenses are a mixed bag. Some are as good as it gets, others are designed for the beginner / hobbyist market where price is the overriding concern. Third party lenses makers, such as Sigma and T...