Here is a quick review of the Irix 150mm f/2.8 Macro 1:1 Dragonfly lens for Nikon F-mount with sample photos by Arkadii Shapoval (blog | 500px | see also his previous NR posts): Pros: extremely sharp lens excellent correction of lateral and longitudinal chromatic aberration no visible distortion nice bokeh internal focus max. magnification 1:1 weather-sealing nice focus ring … Continue reading Irix 150mm f/2.8 Macro 1:1 Dragonfly lens for Nikon F-mount review