From: Darrell A. Larose on

<me(a)mine.net> wrote in message
news:oe0hl5hsisgqt4791ebgb2f9it26ghj42n(a)4ax.com...
> On Thu, 21 Jan 2010 11:11:33 -0500, in rec.photo.digital.slr-systems
> Jack Sprat <jacksprat(a)eatsnofat.com> wrote:
>
>>I've tried a 25 year old Kiron 2X teleconverter with Nikon mounts on
>>my new Nikon D3000 DSLR and Nikkor 55 to 200 zoom lens and I've got a
>>problem. On manual mode I can adjust the shutter speed but have no
>>control over the aperture.
>>
>>Anyone know of a fix for this? Any help would be appreciated.
>
> I believe you'll need to get an AF-S compatible TC. The Nikon ones
> won't work with this lens and I doubt any TC, even a 1.4/1.5, will
> really give acceptable image quality with this inexpensive lens.
>
Nikon AF-S Telecoverters (TC14, TC17,TC20) won't work on that lens, you have
to look at the third-party TC's


From: Bristolian on
On 21/01/2010 16:38, me(a)mine.net wrote:

>> There may not be. The D3000 has electronic contacts. The old teleconverter
>> you have does not. I do not know if your converter is AI. If it is not AI
>> you are SOL. Also I do not know whether you camera has a setting for non-cpu
>> lenses. You should check your manual for that information. If it does, you
>> will have to use that setting. If not, you are SOL.
>
> Nope, you need one of the high end prosumer Nikon dslrs for this
> feature.

Or a teleconverter that is compatible with the D3000 - which is a lot
less costly than a new body :-)

--
Regards

Bristolian
From: Jack Sprat on
To all that answer, thanks for the info. Looks like my best bet is to
forget about teleconverters for the time being and start seriously
saving my pennies and buy a bigger lens. Maybe by Christmas:-)

JS
From: RichA on
On Jan 21, 11:11 am, Jack Sprat <jacksp...(a)eatsnofat.com> wrote:
> I've tried a 25 year old Kiron 2X teleconverter with Nikon mounts on
> my new Nikon D3000 DSLR and Nikkor 55 to 200 zoom lens and I've got a
> problem.  On manual mode I can adjust the shutter speed but have no
> control over the aperture.
>
> Anyone know of a fix for this?  Any help would be appreciated.
>
> JS

Welcome to Nikon's world of entry-level (and medium level!) DSLR's
that are completely incompatible with old lenses. Good luck metering
even if you get the aperture to work.
From: nospam on
In article <17dhl558kvhr4c8lhqi5h7eqve5etl1jhh(a)4ax.com>, Jack Sprat
<jacksprat(a)eatsnofat.com> wrote:

> To all that answer, thanks for the info. Looks like my best bet is to
> forget about teleconverters for the time being and start seriously
> saving my pennies and buy a bigger lens. Maybe by Christmas:-)

a teleconverter on a f/4-5.6 lens isn't going to work all that well
anyway.