Nikon's next retro camera should have a winding lever. Imagine a Zf that looks so much like an F3 that it even has the lever. The lever will serve no purpose, and will not be needed to operate the camera…unless you adjust custom setting CRM114, which controls how the winding lever works. You can set it to re-cock the shutter (even if the camera has no physical shutter). In essence, a lock that engages after every shot. Perhaps the lever could affect exposure compensation, or exposure lock. Pull the lever out partway to activate the spot meter, or take us back to the 1960s, and let the lever act as the on-off switch. No matter what, operating the lever should feel as much as possible like the F3's lever. In fact, I can see another custom setting: lever tension! At least three adjustments: no film loaded, thin base, and thick base.
Next on my list of necessary accessories is a battery pack that unlocks motor drive capability. With up to 30 frames per second of breakneck shooting speed, amateur photographers won't want to go without the ZD-4, which takes eight AA batteries (not included).
Finally, if you want to store a lot of images and not worry about a single point of failure, consider adding the ZF-4 to your shopping cart. This bulk memory card back bolts onto the Zf and has slots for 32 CFexpress cards, 16 on either side. Play it safe with 32 GB cards for 1 TB of storage, or record the ultimate real-time time lapse footage with 4 TB cards for 128 TB of storage (this much storage is needed for up to 30 minutes of footage using the newest high bit-rate, high bit-depth raw codec that requires a poorly written, slow plugin to transcode to something usable).
