Originally posted by yusuf Only DA I have is 50-135 so no HD coating for me
That raises an interesting point, which may have been covered elsewhere in the discussions on the HD-coated lenses. If the DA Limited primes benefit from the better coating, how much more would the DA* zooms benefit, having a greater number of optical surfaces? Even the DA* primes would benefit as much as the Limiteds.
On the thread topic, though, I only have the SMC DA15/4 of the DA Limiteds, and I don't plan to buy any more. The flare resistance and colour rendition of that lens is well-known and documented here, so I can't see any significant advantage in changing it for the new one.