Using a 36-Year-Old Lens

One of the benefits of my camera system is the ability to use over one million older lenses without any adapters. Pentax has made some pretty nice lenses over the years and with their backward-compatibility it's simple to use some of their nicest lenses from the 70s and other eras on their newest cameras.

Here's an example below from a 36-year-old lens on my camera recently. I don't think it did too bad. What do you think?
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Old, Abandoned Buildings

Does anybody else enjoy finding and exploring old abandoned buildings? I try to avoid the haunted ones, but finding new places to investigate is always an exciting discovery, especially if it's a ghost town instead of just one or two buildings.

Anyway, here are some recent treasures from my travels.