The Kilfitt Robot Prototype (spring motor) is a one-off or very-low-production experimental camera bearing the Kilfitt name, fitted with a spring-driven motor wind in the manner of Berning Robot cameras. Documented examples have surfaced only at specialist Leitz Photographica auctions, indicating it was never a series-production product.

Auction evidence is thin: only two UK saleroom hammer results are on record, at £2,700 in 2005 and £4,800 in 2012, giving a range of roughly £2,700–£4,800 at hammer level (wholesale, before commission). Because these are one-off prototype results rather than a regular market, the figures should be read as indicative only, and any value placed on the camera today in 2026 would depend heavily on provenance and competing bidders on the day.