The Graflex 6 Inch f/4.5 Optar is a large-format lens associated with Graflex press and view cameras, sold under the Graflex-branded Optar line. It is a mid-speed normal-to-short-telephoto optic for 4x5 sheet-film work.

At recent UK auction, hammer prices for this lens have been modest, with the two logged sales in 2025 landing at £20 and £30 — a range typical for loose Optar barrels at saleroom level today. Because only two wholesale results are on record, any sense of what one sells for should be treated as indicative rather than a firm market value.