Oh, those days of modifying the Noct ... sparks flying everywhere ... the sound and smell of a Dremel at high revs ... Must be experienced to be believed. Thanks for bringing back the memories, Erik.
My current set of Nocts should be documented too, but this has to wait until return from a medical appointment. Meanwhile, one has to do with the meagre substitute of a 43-86 mm Zoom-Nikkor (latest version) with its CPU modification to make it compatible even to the lowest end of the Nikons, in this case an IR-modified D40X. The 43-86 is excellent for IR, by the way.