Please note that it is incomplete. It is missing front. Threads in the front are 25mm. So it needs front glass with 25mm female threads. Please note that it creates inverted image. Not sure why. Maybe it is missing some kind of a prism. I don't know what it is missing. Glass seems to be clean. But it has a vertical line inside. I don't know what brand it is. Item is sold as pictured.
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