Archived posting to the Leica Users Group, 2010/11/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Focus shift seems to be the big bugaboo nowadays. Probably because digital seems more sensitive to it and we also now have instant feedback. All lenses have it from what I understand. It's just on the ones with 'no' shift, it's small enough not to be noticeable. I've heard the 90 AA is a wonderful lens. I've also heard that it is horrible below 3 m OR it loses a bit of performance in that range. Probably closer to the latter, but I'd like to hear opinions on that if you have any. How good/bad is it closer in? Which brings me to my 2nd question. I've read that the decrease in performance close in on this lens is due to focus shift. True? Does that mean there is a plane of bitingly sharp detail, but just not where you want it to be?