Wouldn’t it be wonderful if Nikon would announce the lenses they plan to make for the year at one time?  That would certainly remove the anxiety from some purchase decisions and allow photographers to budget and plan their expenses for the year. Now that Sigma and Tamron are making lenses competitive to Nikon in quality, perhaps Nikon should revisit its marketing strategy.  An annual announcement of all new lenses for the year might cause sales of older model lenses to decline, but it would certainly help keep Nikon lenses with Nikon cameras and help prevent Nikon owners from straying. The…