DK17m and Dk19
Anders Lundgren wrote:
I've lost mine once, but luckily found it when going back in my own
footsteps. After that I attached it differently, so that it sits
inside the ring with the text Nikon DK-17M, i.e. the text on the
DK-17M is visible. Hope it helps.
You can use the original rubber eyepiece ring to cover up the 17M, much safer for your eyes.