On the Nikkor Reflex.

Nikon D3x, 500mm Nikkor Reflex f/8.

To anyone who berates this lens I say ‘Check your technique for that is what you should be blaming’.

I use focus block on this optic, the only MF Nikkor of the many I own where I have programmed the CPU in this way. Focus block prohibits exposure unless the focus indicator is lit.