The legendary Helios 40-2 85mm f/1.5 is joining IronGlass’ MKII rehousing lineup. While its little brother, the Helios 44-2 58mm f/2 get all the fame, the 40-2 is actually the true king of swirly bokeh, which makes it a perfect addition to the IronGlass’s Soviet MKII series. The Helios 40-2 has an interesting history, being…