Archived posting to the Leica Users Group, 2006/01/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Andrew Nemeth wrote in pertinent part: > See the Leica FAQ entry I have on this at: > > <http://nemeng.com/leica/002f.shtml> > > After the page loads, scroll down to the "Non-Canon lens TTL exposure > errors" heading. > > BTW, this info also turns up if you use a web search engine called > "Google": > > <http://www.google.com/search?hl=en&q=canon+leica+exposure+error> > > > :?) Andrew, mea culpa, sort of. I now recall having seen your FAQ entry, and of course you are right, particularly when you note: > The TTL lightmeter in Canon EOS cameras is inherently flaky when used > with lenses which don't have a Canon-compatible ROM chip. Because > Leica or Zeiss lenses lack this chip, TTL exposure problems will > therefore arise. For example, many users complain of consistent > one-stop over-exposures when using their R lenses. My memory is such that I can no longer accept responsibility for remembering, however, everything I have read. :-) :-) I did Google the question (and searched on it in various archives before posting it to the LUG) but my searching skills may not be up to snuff because I did not phrase the query as well as you did and thus did not get the hits you did. And I do like the question you pose: why, if these problems exist, even bother with using the Leica lenses on a Canon body? For me, it is because of the image I get....when I can get the focus and exposure right. And when Nathan Wajsman added: > I have now used Leica lenses on a Canon 10D, 20D and now 1D Mark II, and > have not noticed any exposure problems (beyond operator error, of course). I can only respond that I got reasonably good exposures using Leica glass and a Canon 10D and then a 1D Mark II, so I am beginning to think there is something unique to the 5D that makes the exposure error greater. What I really wanted to know however was whether I was the only one experiencing this problem with the 5D. Thank you LUGGERS for telling me I am not. --Bob