It's an incredibly exciting time of year for camera gear. With CP+ 2026 taking place last week in Yokohama, Japan, and The Photography & Video Show happening over four days from this weekend in Birmingham, England, there are dozens of shiny new camera lenses to get hyped about.One that's been getting a lot of hype online is the Kase Reflex 150mm f/5.6 AF – a lens I was able to get my hands on when it was unveiled at CP+. But while I'm intrigued by this exotic optic, I'm also patently aware of an inconvenient truth: reflex lenses are terrible.If you're wondering what a reflex lens (also known as a mirror lens or a catadioptric lens) is, I recommend our look at the history of these optics. Long story short, they use pairs of mirrors to replace a number of optical glass elements.
