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Nikon 4T dioptre on 105mm lens


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#1 tkr

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Posted 28 February 2007 - 06:07 AM

A friend recently let me have a go with a 105mm micro Nikkor fitted with a Nikon 4T dioptre.

After only having used a 60mm lens I was keen to see what I could do with this combination at the limit of close focus.

I came back with some pleasing images but was not exactly sure what this lens and dioptre were doing. I sensed a bit of extra magnification and a shallower depth of field but I've no idea by how much.

Apart from a + 2.9 rating can anyone explain in simple terms what you get with this dioptre?

Edited by tkr, 28 February 2007 - 06:09 AM.


#2 rodriguezfelix

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Posted 28 February 2007 - 07:21 AM

This thread must answer must of your questions about 4T:

http://wetpixel.com/...t...=7232&hl=4t

Also read the links, especially this one:

http://www.earthboun...p-diopters.html

#3 rodriguezfelix

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Posted 28 February 2007 - 07:27 AM

oopss.. I just realized that the earthboundlight.com link doesn`t work anymore... Here is the new one:

http://www.earthboun...p-diopters.html

It`s odd.. seems to be the same URL but the first one doesn`t work for me.... you try it..

Edited by rodriguezfelix, 28 February 2007 - 07:31 AM.