Nikon Teleconverters and the D40

C J Campbell wrote:
Steven Green said:

I am building a stock of lenses then will purchase a nice FX body later,
but I am curious about autofocus and teleconverters on the D40. I have
read that other users experienced sporatic problems with the
teleconverters on other cameras but I have not found anything definative
saying they will not work ..

Nikon AF-S teleconverters will autofocus with AF-S lenses on the D40.
Not all teleconverters are AF-S, however. Nikon AF-S teleconverters only
work on a very few Nikon lenses. They have to be AF-S and the rear lens
element must be recessed enough to allow mounting of the teleconverter.

And I believe Nikon no longer makes non-AF-S teleconverters.


So a Nikon AF-S teleconverter will work well with the 70-200mm f/2.8
AF-S VR lens. It will not work with the 80-400mm AF VR lens. Some other
teleconverters *may* autofocus with that lens if they will mount at all,
but not on the D40. When Nikon says a teleconverter is compatible with
certain lenses, they mean it. The teleconverter literally will not fit
on other lenses in their current lineup. It might fit on older lenses,
or it might not.

As pointed out, there are some errors in the Nikonians list and, in any
event, the list tells you nothing about the quality of image you will
get. You might get some third party teleconverters to work with some
Nikon lenses that will not otherwise accept teleconverters. You might
even get them to use features like AF-S and VR. But the image may well
be unacceptably fuzzy. Just because the chart says you can get it to
work does not mean you will like the results.



--
Paul Furman
www.edgehill.net
www.baynatives.com

all google groups messages filtered due to spam

On 2009-02-04 10:49:19 -0800, Paul Furman said:

C J Campbell wrote:
Steven Green said:

I am building a stock of lenses then will purchase a nice FX body later,
but I am curious about autofocus and teleconverters on the D40. I have
read that other users experienced sporatic problems with the
teleconverters on other cameras but I have not found anything definative
saying they will not work ..

Nikon AF-S teleconverters will autofocus with AF-S lenses on the D40.
Not all teleconverters are AF-S, however. Nikon AF-S teleconverters
only work on a very few Nikon lenses. They have to be AF-S and the rear
lens element must be recessed enough to allow mounting of the
teleconverter.

And I believe Nikon no longer makes non-AF-S teleconverters.

No, they don't. But there are still a lot of the older ones out there.
They won't work on the D40, so I made sure to specify the AF-S
teleconverters.



--
Waddling Eagle
World Famous Flight Instructor