04-23-2015, 02:14 AM
25mm has 4 double-sided aspheres, I'm actually rather amazed they are selling it for such a "low" price.
A good indication that Cosina has moved to OptiPro and/or QED polishers to bring costs down.
A good indication that Cosina has moved to OptiPro and/or QED polishers to bring costs down.