noun
throwaway prints; unwanted photo prints
Colloquial term from the film photography era, referring to prints you don't keep. Often used when ordering prints and specifying which ones to discard.
現像に出したけど、捨てポジが半分くらいあった。
I had the film developed, but about half the prints were throwaways.
捨てポジは焼き増ししないでください。
Please don't make extra copies of the unwanted prints.