Hello Everyone,
I've been having a lot of fun taking pictures of insects and small plants
with my 60mm Nikkor "micro" lens. Some of my latest pictures taken with
this lens are at http://www.scottspeck.com/old4/index.html. The blue heron
pics on that page were taken with a 80-400 Nikkor zoom with VR having been
activated. All other pics, both short and long range, were taken using the
60mm.
My question is, could I use a tele-extender to further magnify images taken
my micro lens? If so, would this introduce much distortion of the image?
Thanks for any help,
Scott
Ed Ruf (REPLY to E-MAIL IN SIG!) - 18 Jun 2006 22:27 GMT
>My question is, could I use a tele-extender to further magnify images taken
>my micro lens? If so, would this introduce much distortion of the image?
According to this B&H page:
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=6
6987&is=USA
--
Ed Ruf (Usenet2@EdwardG.Ruf.com)
http://edwardgruf.com/Digital_Photography/General/index.html
Ed Ruf (REPLY to E-MAIL IN SIG!) - 19 Jun 2006 22:30 GMT
>>My question is, could I use a tele-extender to further magnify images taken
>>my micro lens? If so, would this introduce much distortion of the image?
>
>According to this B&H page:
>http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=6
6987&is=USA
Oops from the specs tab:
Tc-201 Or Tc-14a (Manual Focus Only)
--
Ed Ruf (Usenet2@EdwardG.Ruf.com)
http://edwardgruf.com/Digital_Photography/General/index.html
JPS@no.komm - 18 Jun 2006 23:59 GMT
>Hello Everyone,
>
[quoted text clipped - 7 lines]
>My question is, could I use a tele-extender to further magnify images taken
>my micro lens? If so, would this introduce much distortion of the image?
My suspicion is that the "90mm or greater" value given by TC
manufacturers assumes a "full-frame" sensor or 35mm film. With an
APS-sized sensor, you can probably go down to 50 or 60mm. I use a 1.4x
a lot with my Tamron 28-75 on my 20D (1.6x crop sensor), and it only get
a little funny down around 28, and then only wide-open.

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Toby - 19 Jun 2006 14:16 GMT
> Hello Everyone,
>
[quoted text clipped - 11 lines]
> Thanks for any help,
> Scott
A good tele-extender should not seriously degrade your images. You will lose
some speed (with a 2x extender you lens will become a 120mm f5.6), but on
the upside your minimum focusing distance remains the same, giving you twice
the magnification :-)
Toby
tomm42 - 19 Jun 2006 17:49 GMT
> Hello Everyone,
>
[quoted text clipped - 10 lines]
> Thanks for any help,
> Scott
Yes you can, but there is a limit, if you use a 2x extender you get a
120mm f5.6 lens, no more. The one advantage you will get is at your
closest focus you will get 2:1 instead of 1:1 at the same distance. Now
for the bad news telextenders always degrade the image, if you are
starting with a micro Nikkor you are starting with an excellent lens so
the images will PROBABLY be OK. Don't buy a cheap one either
telextenders are generally designed with the manufacturers lenses
(mostly telephoto) in mind. The Nikkor 2x telextender is $300+, you may
be able to get a faster 100mm lens for that price.
Tom