[mat_mcdermott]

Of those I've had both the Summicron and the Elmarit (which does intrude into the frame if using the hood, but only very slightly) and optically have been very pleased with both. I currently only have the Elmarit as I wanted a lens that was smaller that the Summicron (which compared to any new SLR lens is small, but the Elmarit is tiny). Is the Summicron worth twice as much as the Elmarit? If you absolutely need that extra stop then I suppose it is, but for my needs I was willing to give up a stop in speed for the smaller lens. Both are excellent performers. If you get the Summicron, buy the hood for the 35 'Lux and use it instead as it intrudes into the framelines far less than the stock hood.