Canon has killed off its legendary MP-E 65mm f/2.8 1-5x Macro lens - DIY Photography
Canon MP-E 65mm f/2.8 1–5x Macro - Wikipedia
Canon MP-E 65mm f/2.8 1-5x Macro, Camera lenses for rent – Dalinuosi.lt
The $399 Laowa 25mm Macro Lens vs the $1,050 Canon MP-E 65mm | PetaPixel
Macro photography focusing rails for stacked focus, especially with Nikon macro lenses or Canon 65mm MP-E f2.8 macro lens with 5X enlargement | Digital Photography