Next week, on Wednesday (March 26), Nikon will officially announce the previously rumored NIKKOR Z 28-400mm f/3.5-6.3 full-frame lens. As previously reported in November last year, this will not be an S-line lens, and the aperture range could be a half-stop faster or slower on both ends:
Nikon rumored to announce a new NIKKOR Z 28-400mm f/3.5-6.3 lens
Via NikonRumors
