Assuming you have a metered prism, it would be important to ensure non-AI metering without having to resort to stop-down metering. Which prism do you have?
Originally Posted by edcculus
Amongst the 28/2.8 Nikons, the AIS is widely agreed to be superior to all other models (even AF). The 28/3.5 is often overlooked but certainly respectable and very inexpensive. If you're entertaining thoughts of ever aquiring a more recent Nikon, I would bypass the non-AI lenses and go with AI or AIS for metering capability. Would be a bummer to have to regularly do stop-down metering on any number of bodies.