PRODUCT DESCRIPTION 
Carl Zeiss Distagon T* 28mm f/2.8 is a classical manual focus Zeiss lens for the now defunct Contax/Yashica mount systems. Like most Contax branded lenses, Carl Zeiss used to manufacture Distagon T* 28mm f/2.8 in two variants - AE and MM. Both types were manufactured in Germany (by Carl Zeiss itselft), as well as in Japan (by Kyocera). The new version ofthe 28mm Distagon, which is by the way is manufactured by Cosina of Japan, Carl Zeiss Distagon T* 28mm f/2 in ZF (Nikon F) or ZK (Pentax K) mount cost ~US$1,000 - almost 3x of the used copy.
The optical construction of the lens consists of 7 elements in 7 groups. The lens is very light and compact, measuring only 6.2x5cm (2.4x1.9in) and weighing 280g (9.9oz). The build quality of the lens is quite good - similar to other Contax lenses, Distagon T* 28mm f/2.8 has a fully metal barrel and aperture ring, with a nice rubberized focusing ring. The focusing ring rotates very smoothly and the aperture has a nice feel to it - there's no play whatsoever and the ring locks into positions with a nice, satisfactory click. Despite its lightweight and compact construction, the lens leaves the impression of being pretty sturdy. While the inner cam of the lens extends slightly during focusing, the front element does not rotate at all, which allows using circular polarizers with this lens. The lens accepts 55mm screw-in type filters and has the minimum focusing distance of 25cm (10in) and the minimum aperture of f/22.
Carl Zeiss Distagon T* 28mm f/2.8 showcased exceptionally good behavior in the field. The lens produced very sharp and balanced results across the aperture range. Center performance was easily one of the best in this class, and border image quality was very solid in general. Carl Zeiss Distagon T* 28mm f/2.8 is clearly one of the better 28mm prime lenses out there. The lens offers excellent image performance, combined with good handling of artifacts like chromatic aberration and distortion, and excellent build quality - all that at a very reasonable price. If you're a Contax system owner, then this lens is probably one of the crown jewels of your lens collection. And if you're considering an alternative mount 28mm prime, then Distagon T* 28mm is unlikely to disappoint you. Obviously you should be comfortable handling manual focus lenses, otherwise you'd better stick with the native lenses.
 
Lens Composition
7 elements, 7 groups
 
Angular Field
74 degrees
Minimum Focus
0.25m (10 in)
Diaphragm Action
MM Fully automatic
F stop scale
f2.8-4-5.6-8-11-16-22
Filter
55mm
Filter connection
Screw-in type
Lens Hood
55mm G-12 soft hood, screw-in type (filter can not be used with the hood); No l metal hood(with 55/86 ring), screw-in type (filter can not be used with the hood)
Weight
280 grams (9.9 oz)
Lens Size
62 5x50mm (2-7/16x1-15/16 in)
Lens Cap
55mm K-51, snap type
https://www.contaxcameras.co.uk/_html/slr/slrmanlenses/distagon28.html
 
Useful Links:
https://www.zeiss.com/content/dam/consumer-products/downloads/historical-products/photography/contax-yashica/en/datasheet-zeiss-distagon-2828-en.pdf
https://phillipreeve.net/blog/review-carl-zeiss-distagon-2828-t/
 
Product ($499) SN: ***
Condition: Like New (LN)
Warranty: 2 weeks shop warranty, covering manufactural defects
What You Will Get
- F/R Caps
 
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