The Schneider-Kreuznach 355mm f/9 G-Claron is a large format process lens from the German optical maker, originally designed for high-resolution flat-field reproduction work such as copying and graphic arts. Its modest f/9 maximum aperture, long focal length and generous coverage also made it a popular choice among 8x10 and ultra-large-format field photographers who repurposed process lenses for landscape use. It is typically supplied in a barrel or Copal shutter and covers well beyond 8x10 at working apertures.

At recent UK auction, hammer prices for the 355mm f/9 G-Claron have ranged from £130 to £375, giving a midpoint around £250 based on the limited sample available in 2026. Clean, shuttered examples tend to sell for more than barrel-only copies, which helps explain the spread between these two saleroom results. Because the data set is small, individual condition and whether the lens is mounted in a working Copal shutter have an outsized effect on what a given copy is worth.