Conclusion: With reproduction ratios consigned to the inner barrel, the distance window is free to show just the lens' focus in both feet and metres. As a result, this information isn't as cramped as it is inside the windows of other lenses, and it's positioned so that it can be clearly viewed from different angles.
Excerpt: Designed for use with Sony full-frame models as well as APS-C D-SLRs and D-SLTs, when used with the latter types it transforms into a 150mm f/2.8 in conventional film terms and features a minimum focusing distance of 35cm. There's no MF/AF switch on the lens barrel as this is controlled from the body on Sony D-SLRs, but there is a focus range limiter switch to restrict focusing between infinity and 60cm (equivalent to a 1:4 reproduction ratio).
Sony 100mm f/2.8 macro (SAL-100M28) - Review / Lab Test Report
31 October 2008
Conclusion: The Sony 100mm f/2.8 macro is able to produce very sharp results combined with a negligible amount of distortions, vignetting and lateral CAs. However, longitudinal (axial) chromatic aberrations can be quite a problem in out-focus areas (f/2.8-f/5.6) resulting in a magenta to greenish tint in some situations - this is not unusual but unfortunate nonetheless.
Summary: A makrózás örök sláger már a kezdő fotósok között is. Az első DSLR mellett pedig nagyon jó szolgálatot tehet egy igazi, 1:1-es leképezésű makró objektív, lehetőleg 100mm-es gyújtótávolsággal. Most a Sony paletta fenti kívánalmaknak megfelelő optikáját mutatjuk be.