Re: Usability of Nikon AIS lenses on modern D bodies
As pointed out by Guy the AI/AIS will work perfectly. However, take care with non ai/ais lenses (made before 1977) which will need a modification to work properly and do not damage your D300.
Avi B gave you the link, IMHO, of the best thread in this forum where you can find a huge amount of images, info, fun and friendship regarding to the use of Nikkor MF lenses on Nikon digital bodies.
Specifically for D300 some samples with Nikkor AIS (20mm f/2.8, 50mm f/1.8, 105mm f/2.5, 400mm f/5.6 ED non-IF, 600mm f/5.6 EDIF, and 800mm f/5.6 EDIF naked and with the TC20EIII):
Grasshopper in Savanna (cerrado) by labecoaves, on Flickr
D300 + Nikkor 50mm f/1.8 ais (older version long nose) + Nikon Close up filter no. 1
Minimum focusing distance (45cm). D300, ISO 200, f/2.8, 1/1000s, habdheld.
Eared Dove incubating eggs by labecoaves, on Flickr
D300 + Nikkor 400mm f/5.6 AI ED (non IF) @ f/5.6, ISO 1600, 1/320s, hand held, bird at ~ 6m, 10% crop.
