Link to article in Chinese
Carl Zeiss Tele-Tessar T* 3.5/200 C/Y
My usage
...
Image quality
...
Sharpness and Contrast
Based on photos I have taken I have no reason to doubt that the measured MTF charts would
not be as Zeiss has them measured.

According to Zeiss (underline parts different than in Canon's MTFs): "The Modulation
Transfer (MTF) as a function of image height (u) and slit orientation (sagittal, tangential)
has been measured with white light at spatial frequencies of R = 10, 20 and 40
cycles/mm."
Bokeh
Wide open - subjective
Closed down - subjective
highlight shapes - in corners "cateye" or not
highlight shapes - is the highlight circle having strong edges or soft edges
Lens flare
Backlight
Nightphotos on city => strong lights
Vignetting and distortion
...
Microcontrast
Textures etc.
Handling and usage
Focusing from infinity to 1 meter is about XXX degrees rotation.
XXX subjective description of manual focus resistance XXX.
XXX Manual focusing is very accurate and it's very easy to achieve accurate focus with live view.
Aperture can be selected 1 stop intervals. When using viewfinder and manually stopping
down it's easy to calculate "clicks" from wide open to determinen the aperture into
which lens is stopped down.
XXX subjective feeling of aperture adjustment if any XXX
XXX subjective description of focus ring width and usage with gloves if relevant XXX
XXX subjective description of lens hood if applicable - physical and flare protection XXX
XXX subjective description of lens cap when lens hood is used XXX
XXX Polarized usage with hood if applicable XXX
XXX Lens hood effectiveness with filters XXX
Build quality and basics
Build quality is as good as I could imagine, from different planet than Canon lenses.
Lens dimensions with C/Y to EOS adapter and lens caps are:
diameter 77.5mm, length 122+XXXmm, weight 780+XXXg.
This lens isn't internal focusing and therefore extends when focused closer. Lens extends
about XXmm when focused to minimum focus distance 1.8m. Lens uses filter size of 67mm like
Makro-Planat T* 2/100 and Vario-Sonnar T* 3.4/35-70.
Minimum aperture is f/22. Largest aperture is f/3.4 and next step in the aperture ring
is f/4, which is not marked in the aperture ring. Aperture has 6 blades and aperture has
"ninja"-star shape at f/4-f/5.6. At f/8 the aperture is hexaconal and at f/11 even more
clearly.
Lens has 6 elements which are in 5 groups. Actual focal length is 194.0mm. Minimum focus
distance is 1.8m, which results 0.YYx maximum magnification and full frame (36mm x 24mm)
coverage of XXXmm x XXXmm. Magnification is calculated based on focal length
and minimum focus distance.
Summary
Pros
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Cons
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See photos
in my picturebank taken with Carl Zeiss Tele-Tessar T* 3.5/200.
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Pictures of Carl Zeiss Tele-Tessar T* 3.5/200 C/Y
Lens extends when focused and integrated hood

Distance from EOS lens mount (including adapter) to end of the hood is XXXmm at infinity
and XXXmm at minimum focusing distance.
Front/side projection

Made in Germany.
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