The Argus C4 is a 35mm rangefinder camera produced in the United States by Argus. It followed the earlier C-series brick-shaped bodies with a more rounded die-cast housing and was positioned as an affordable consumer rangefinder in the post-war American market.

With only one tracked UK auction result, the Argus C4 sits at the very bottom of the collectable 35mm market, with that hammer price reaching £25 at saleroom level in 2022. As of 2026, this remains a low-value camera at auction, and what a clean C4 sells for today is heavily dependent on cosmetic condition and whether the shutter and rangefinder are still functional.