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01-27-2011, 06:33 AM   #1
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Posts: 99
50mm, three Takumars and one Planar T* test

This is my first try at a comparison between different lenses with the same focal length, and it is possibly not very informative; I would like some pointers to attain some more insight in the differences between them.

I used an Olympus EP-1 for these shots, as it is the only digital camera i have; the crop factor is of 2x.

The lenses:

C/Y Planar T* 1:1.4/50;
M42 Super Takumar 1:1.4/50 I type;
M42 Super Takumar 1:1.4/50 II or III type;
M42 SMC Takumar 1:1.8/55.

C/Y Planar T* 1:1.4/50


Super Takumar 1:1.4/50 I type


M42 Super Takumar 1:1.4/50 II or III type;


SMC Takumar 1:1.8/55


100% crops:

C/Y Planar T* 1:1.4/50


Super Takumar 1:1.4/50 I type


M42 Super Takumar 1:1.4/50 II or III type;


SMC Takumar 1:1.8/55


In general, I think that:

1) The Planar has a focal length apparently different from the two Takumar that share nominally the same length; possibly because of the different adapter: it looks maybe like it was between the 50s and the 55 Tak.

2) M42 Super Takumar 1:1.4/50 II or III type; is the only one of the four that is not in excellent shape: this one has a very early stage of fungal spread on the back element, and it is yellowed; I couldn't get rid yet of the yellowing because of the bad weather of these last days.
The yellowing cut roughly half a stop of light.

3) Taking in account the yellowed darker results of the 7 elements' one, the earlier 8 elements Super Takumar is the one of the four lenses that has the less white burnouts and blackened darks.

4) The Planar T* looks the softest of the bunch on the unfocused planes, but sharper than the two other 50mms on focus, with the sharpest appearing to be the SMC Takumar 1:1.8/55.

5) I don't see much difference in the bokeh, except for the 55mm, where there is something of a fringe on the points of light, but it may be caused by the longer exposition (to account on the 1.8 focal aperture.

What are your thoughts?
I understand that this is not a very much accurate comparison, i would gladly accept advices!


Last edited by aheadfordinci; 03-01-2011 at 02:47 PM.
01-27-2011, 06:40 AM   #2
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Original Poster
I ddon't know, anyway, the more pleasnt bokeh looks to me the one of the M42 Super Takumar 1:1.4/50 II or III type, with also the less color aberration of them all.

Last edited by aheadfordinci; 03-01-2011 at 02:47 PM.
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