[stunsworth]

I use the Ultron and it's very, very good, but I'd like to try the Summicron too. If you want to dip your toes into the 28mm water why not buy the Ultron, you could always sell it if you decide to get a Summicron. One thing to remember is that the Ultron has been discontinued, though the last time I looked Cameraquest still had some in stock.

I used to subscribe to Sean's reviews, but after reading almost everything there wasn't enough new stuff of interest to me to justify renewing my subscription. Have there been any substantial additions lately? It's certainly worth trying for a year if you want to learn more about the M system, and your ecperience may of course be different from mine.