I have a 300/f4D, but it has a 77mm filter size. So I'm not sure. The 300 that I have is fully described as: AF-S Nikkor 300mm f/4D IF-ED
I have it permanently attached to a TC1.4E II, because there is no rear lens & it could get dust otherwise. I lose a stop down to 5.6 or 5.66 (depends on whose counting. I also have the Kirk Replacement Collar (Well worth it. The Nikon one is garbage).
It is almost always attached to my D7100. It's the best kit that I have, bar none.
This is the only Nikon 300mm f/4.0D of which I have knowledge. Maybe a Nikon old timer will know more.
Concur - my 300 f/4 is also a 77mm lens that I use in conjunction with a TC1.7E II. With the teleconverter, I also lose some light. There might be another older 300mm, I just am not aware of it personally.
The Nikon 300/4 with 82 mm filter is an AF not an AF-D lens. You can read that here. If you click in the "lens" column you can see a picture of the lens.
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I have both the Kenko x1.4 DG Pro and the Nikon TC14 II, I cannot tell the difference between the two with either fitted to my 300mm f4 AF-S or 70-200mm f2.8 VRI. Except, of course, the price! I bought the Kenko as it is so flexible and can use it with both my Sigma and Nikon lenses.
The older AF lens on the left cannot use any of Nikon's auto focus TC's. The preferred TC's are the Kenko Pro 300 1.4x and 2.0. They are nearly the equal of the latest from Nikon. The only difference I have ever seen between the two brands in the 1.4x model is a very slight corner darkening with the Kenko. The latest TC20E III is a bit better than the Kenko 2x model.
The newer lens on the right can use Nikon's TC14E, TC17E and TC20E whether they are the original, II or III designated.
Very few of Nikon's lenses can use their AF TC's. The lens must be AF-S or the older AF-I models with built-in motors.
Here's is Nikon's chart of which lenses are compatible with their AF TC's.
Sun 25-Aug-13 12:09 PM | edited Sun 25-Aug-13 12:15 PM by tfeazel
I have a Sigma 1.4EXDG and a Sigma 2XEXDG that I use with my 300 f4.0 D (82mm filters). I use them individually and together. Resolution is quite good with either one by itself, and decreases only slightly with both together. Contrast is reduced, but fixable in Lightroom. Autofocus does not work with either tele-extender. All-in-all, results are pretty good.
Sun 25-Aug-13 05:59 PM | edited Sun 25-Aug-13 06:00 PM by dclarhorn
Al, I have your lens. I use both the 1.4x and 2x Tamron SP converters, which are identical to the old Kenko converters. They work just fine on the 300mm f4, of course slowing down AF a bit. With the 2x, it will hunt a bit in lower light, but it's manageable. IQ is just fine with either on that lens.