Nikon's 2000mm f/11 Mirror Lens: A 17kg Relic Reviewed

A 2000mm mirror lens that weighs as much as a toddler and costs as much as a used car. This is a curiosity review, not a buying guide. The Reflex Nikkor 2000mm f/11 is a genuine piece of photographic history, a production lens from the early 1970s that shipped in a world before autofocus existed, and Geier's test confirms it still produces recognisable images on a modern Nikon Df at high ISO. That's about where the practical case ends. Fixed f/11, 18m minimum focus, no stabilisation, and a 25kg total rig weight mean your only real-world application is very slow or static subjects at extreme distances, think wildlife from a hide, or astronomical work with serious support. The donut bokeh is as divisive as ever. Worth reading if vintage optics are your thing, safely ignorable if they're not.