teleconverter for 55mm micro nikkor ?

m0nk3yphd

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I have a MF 55mm Micro Nikkor f/2.8. I'd like to go beyond 1:1 with a teleconverter, is this possible? And if the answer is yes, which teleconverter is appropriate for this lens?
Thanks Mark
 
You can use a TC 201 to extend the reproduction ratio (RR) to 1:1.

However I'd prefer a PK-13 extension tube. The ext. tube has no glass that could add optical aberrations.

To go beyond 1:1 a bellows is the way to go. Alternatively, you can stack more tubes: with the three Nikon PK tubes (PK-11A + PK-12 + PK-13) you can attain 1.4:1 RR.
 
You can also use a TC-14A but once again: extension tubes work better with macro lenses.
 
I forgot to mention the PN-11 ext. tube. It has a built-in tripod collar (useful for tripod work). The PN-11 extension is 52.5 mm and therefore quite similar to PK-11A+PK-12+PK-13 (= 49.5 mm).
Therefore the max RR is similar (1.45X).
 
Thanks for all the information, I didn't know about extension tubes, it is certainly something to think about. How would the extension tubes affect exposure/aperture?
 
How would the extension tubes affect exposure/aperture?
It depends on magnification/reproduction ratio (RR) and pupil factor (P) according to the following simple equation:
F' = F(1 + RR/P),

where F is the aperture one sets on the lens and F' is the effective aperture. F' is equal to F only when the lens is focused at infinity (RR = 0). From a practical point of view we can say that F'=F at long distances (RR

The pupil factor of your 55/2.8 is about 1 (i.e. it is a symmetrical design lens).

Your 55/2.8 has a max aperture equal to f/4.2 at the minimum focusing distance (RR = 0.5 or 1:2).
With RR = 1.4 (or 1.4:1) the effective aperture is
F' = Fx2.4.

Therefore, the max aperture drops to 6.7 and if you set - for example - f/11 on the the lens, the effective aperture (the one that determines the exposure) is 26.
 

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