So, my buddy has a Nikon 13mm f5.6 "Holy Grail" lens and I just had to try it out on my F3. It's not overwhelming the camera, is it? : r/AnalogCommunity
Nikon R-UW AF Fisheye Nikkor 13mm f2.8 For Nikonos RS From Japan 2046a2 | eBay
Nikkor 13mm f/5.6s Ultra-wideangle lens
Rare Nikon 13mm Ultra-Wide-Angle Lens Goes on Sale on eBay: Bidding at $18K | Shutterbug
KOMEHYO|NIKON 1NIKKOR6.7-13mm F3.5-5.6VR|Nikon|Camera|Interchangeable Lens|Autofocus Lens|【Official】KOMEHYO, one of the largest reuse department stores in the Japan