'...on cropped sensors, both the focal length and depth of field increase. So on a 2x cropped sensor, a 50mm f/1.4 effectively becomes equivalent to a 100mm f/2.8 (on a 35mm body' I think 'tis time for me to switch over to digital, and, as a compliment to my OM1 and small hoard of Zuiko glass, I have been studying the reviews of the e410. I like what I see, but was a little bit surprised when I came across the above comment. I knew about the focal lenth doubling, but was unaware that the depth of field would also double. Is this true? Does this mean in effect that my 24mm f2.8 would turn into a 48mm f5.6? If so, it sounds frightfully frustrating! I was actually hoping for a 48mm f2.8... Any light that might be shed on the subject would greatly interest me!