>I am finally settled on the Nikkor AF-S 300mm F4 and the TC >14E II. I haven't found anyone selling the F4G, only the D. >Does Nikon even make an AF-S 300 F4 G?
No! While many are waiting for Nikon to update the 300mm f/4D ED IF AF-S (introduced in August 2000) it hasn't happened yet. The update should include VR and the Aperture Ring will disappear and change from a "D" to a "G".
>I was surprised that Willoughby's Camera said that the D lens >would NOT support AF on the D60. Any reason why they would >say that?
Nikon Alphabet Soup Nomenclature can be confusing. They are likely confusing the 300mm f/4D ED IF AF-S with AF-D Nikkors that have screwdriver type AF mechanisms that are driven by an AF motor built into the camera body. Again "AF-S" is the key nomenclature that defines the lens as having an AF motor built into the lens.
There is a long discontinued(2000) AF 300mm f/4 ED IF (Note: No "D") and a screwdriver type AF drive:
That will not AF on your D60.
The current 300mm f/4D ED IF AF-S:
Has a Silent Wave Motor built into the lens and will AF on your D60, See page 146 under CPU Lenses AF-I, AF-S in the D60 Users Manual .
>You mentioned choosing the highest F/# on the D and locking >it. >Q-1 How do you lock it?
If you look closely at the image above, at top back of the lens you will see the locking switch on the Aperture Ring. Slide the locking lever towards the camera body to lock the aperture ring.
>Q-2 Once it's locked, is there anything the D lens won't give >me that a G lens would?
No. "D" lenses have an Aperture Ring. "G" lenses do not.
>Q-3 With the D lens, to what F-stops will I have access in >the Aperture mode?
The Entire range from f/4 to f/32. Film bodies since the mid 1990's and All DSLR's have Command and Sub-Command Dials that are used control the Aperture settings making the Aperture Ring redundant. The Pro bodies can be configured to use the Aperture Ring to control the Aperture. It all goes back to Nikon providing both foward and backward compatibility throughout their system. Starting with the D40, to keep the price of entry level bodies as low as possible some of the compatiblity was eliminated.
D type lenses are backwards compatible with MF film bodies dating back to 1977 without modification. The G type lenses are not. Good Luck and Enjoy your Nikons!