I wasn’t sure what to expect with the IRIX 150mm f2.8 Dragonfly Macro Lens, but it’s solid all around. 

When IRIX announced that their Dragonfly series of lenses would be a bit in between their Blackstone and their Firefly lenses, I wasn’t sure what to expect. Then I got to see it for a bit at Photo Plus East last year and my expectations were a more positive. But what really made me happy about the IRIX 150mm f2.8 Dragonfly Macro Lens is how it performs on the Canon EOS R. This lens is weather sealed, sharp, has 11 aperture blades to render gorgeous bokeh, accurate focus due to a long focus throw and Canon’s absolutely fantastic rangefinder system, and overall is a very versatile lens.
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https://www.thephoblographer.com/2019/07/08/review-irix-150mm-f2-8-dragonfly-macro-lens-the-bokeh-king/