Kamerakraft released a new Thumb Rest for Nikon Zf cameras.
Kamerakraft is known for its high-quality accessories for Leica cameras, and this is its first product for Nikon users.
Different Thumb Rest models for Nikon Zf cameras can be found on Amazon.
Additional information:
Zf Thumb Rest
Fits Nikon Zf only. Machined from solid brass, black coated in black. The finish is very strong and will last for years. That being said it is possible to make the brassing appear by using a polishing compound. For best appearance, sand paper is not recommended.
This thumb rest vastly improves the Nikon Zf ergonomics by adding a comfortable surface in the same place than where film winding levers used to be. It’s the perfect spot to get ergonomics similar to the Nikon F3.
More Nikon Zf accessories can be found here:
New: Fotodiox DLX metal grip for Nikon Zf cameras (with a wooden accent and battery access)