Tags Posts tagged with "rounded diaphragm"

Tag: rounded diaphragm

Sigma Unveils Five Global Vision Lenses at photokina 2018

Cologne, Germany—Sigma debuted five Sigma Global Vision lenses at photokina 2018 in Cologne, Germany. The company is located in Hall 4.2 on stands B020,...

12 Top Interchangeable Lenses for Mirrorless Cameras

Initially, mirrorless, interchangeable-lens cameras were slow to take off in the U.S., largely because of the huge installed user base of DSLRs. However, the...

Ricoh Adds HD Pentax-DA 55–300mm f/4.5–6.3ED PLM WR RE Lens

Denver, CO—To complement the Pentax K-70 DSLR, Ricoh Imaging announced the HD Pentax-DA 55–300mm f/4.5–6.3ED PLM WR RE  zoom. The weather-resistant telephoto lens can...

Winter Lens Scene: 13 Optical Options Going into 2016

The sizzling pace of new lens announcements that reached a fever pitch in 2015 shows no sign of abating as we move into the...

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