HOSTILE TAKE-OVER ATTEMPT - BEWARE "NG 10 Years" competition: RESULTS !!!https://nikongear.net/revival/index.php?topic=11252.0Current status: 89/150 supporters
The main problem with such a lens design is the extremely short working distance. At 1:1 you are down to a few mm clearance to the front element.At the same time, the focal length is way too long to give any extra depth of field.