Hi,
I was fascinated by the assertion in the article that part of the reason for larger lenses on SLRs is the greater rear register distance. If I understand correctly, this is saying that when one compares lens sizes between DSLRs and eg M4/3 cameras, the difference in lens size is due to a combination of the smaller sensor and the smaller rear register distance. Can anyone elaborate on this? How much of the difference is due to which factors? Does the difference from the rear register difference vary by lens type, or is it relatively constant?
Thanks,
Brian