closed cell foams have strong shock absorption properties and are ideal for applications that require a strong, leak-resistant moisture barrier. Compositions include Neoprene (CR), EPDM, SBR, Vinyl ...
The edges are excellent at f/4, outstanding from f/5.6 to f/22 and very good at f/32. At 100mm, central sharpness is outstanding from f/4 to f/22 and very good at f/32. The edges are very good at ...