I do not know why Minolta called their budget lens line "Celtic" and I don't think anyone knows, possibly not even Minolta. There is nothing Celtic about this lens, or about Minolta, unless I slept through a couple of pretty important world history classes, which is possible. Anyway, the Minolta MD Celtic 35mm f2.8 is a surprisingly tiny semi-wide prime lens in excellent condition, with clean glass, and good function.