KEVIN-XU 愛 forever
所謂的攝影,就&

Flickr 上 KEVIN is listening Begin...... 的 Wow~~~

Flickr 上 KEVIN is listening Begin...... 的 .......... It's life..........
Nice shots Kevin I was impressed when I saw your flickr stream. That 28 looks good. As 28 is my fave focal length I will have to try one if I can lay my hands on one.
The later Canon LTM lenses with black anodized barrels have updated coatings vs. the earlier versions, but i don't think any have different optical formulas. My experience in this regard is with the 28/3.5, 35/2.8 and 50/1.8: The black-barreled versions are much lighter in weight; all have 40mm filter threads (the chrome 28/3.5 and 35/2.8 take 34mm filters); and the coatings have a gold reflection (rather than the purple/blue of the older models).
In the case of the 28/3.5 and 35/2.8, the later black model is significantly bigger than the chrome version. In my opinion, this makes the ergonomics much better, as the focus ring has a much better grip area. Also, the black model has evenly-spaced f-stop markings on the aperture ring, while the chrome model has logarithmically-spaced markings.
::Ari
BTW I know someone who had a 28/3.5 that he called mushy. I presume that he didn't have a good one.
Cal
Maybe you had a lemon, Keith.