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rtallent wrote:
I own the 135mm f/2, the 200mm f/2.8 LII and the Canon 1.4x II. The 200mm f/2.8 LII, while a really excellent lens, is not quite as good as the 135mm f/2. I find the image quality of the 135 with the 1.4x to be very similar to the 200mm. However the 135/1.4x combination is more prone to chromatic aberration in extreme contrast areas. I rarely use the converter and, now that I have the 200mm, I keep it around only in case I need to extend the 200mm to 280mm. Hope this helps.
I also own both the EF 135/2.0 and the EF 200/2.8 II.
I have also noted that the 135 shows more chromatic aberration. However, this is no big thing.
What is more significant, my 200/2.8 II is a better lens than my 135/2.0. Not by much, and both are ahead of the 70-200 2.8 IS and non-IS zooms. I also have the 70-200 2.8 non-IS. The 135 is very slightly better than the zoom at 135mm and 2.8, at 4.0 the difference disappears. The 200/2.8 II is better than the zoom at even 4.0, and it takes the 1.4x Extender with less loss of quality than the 135. I am positive that these results are consistent between the two lenses.
Here I have made a comparison between the two lenses. "Blender" means "aperture" in Norwegian. The distance to the subject was varied so that it filled the frame equally much in all shots. As you can see, the 135 is not better:

Bogatyr
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