SUMMARY
Canon appears to be developing more affordable macro lens options for RF-mount cameras, as indicated by a recent patent filing. The patent details designs for 90mm f/2.8, 100mm f/2.8, 130mm f/2.8, and 180mm f/4.0 prime lenses that achieve 1:1 life-size reproduction. These lenses feature a distinct optical design from current L-series macro lenses, aiming to be more budget-friendly and lightweight. The new designs utilize an internal focusing system to maintain 1:1 magnification while suppressing focus breathing and reducing barrel length.
TAKEAWAYS
Canon patent filed for new budget macro RF lenses.
Designs include 90mm, 100mm, 130mm, and 180mm prime lenses.
Lenses aim for 1:1 magnification at a lower cost than L-series.
New optical design focuses on size and cost reduction.