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IRIX 15mm f/2.4 BLACKSTONE £574/$675
rix offers a 15mm f/2.4 in two different versions, the Firefly and the Blackstone. The optical path is identical in both, but the pricier Blackstone has better
Common Blue
JULIA BROWN, BUCKINGHAMSHIRE SAYS… I photographed this common blue butterfly at a scientific interest site near to my home. There are many species of butterflies there at the right time of year, including some exceptionally rare varieties, but I didn
