How long does it take for fungus to develop? 24 hours?

blue_skies wrote:

Looks very real. The mirror stays in the lock-up (up) position if you press the shutter and the batteries are almost drained - something very likely to happen.

The black&white dot pattern is the shutter curtain, this was a Olympus invention to have the light meter read the reflection of the film, and, during fast exposures, the reflection of the curtain. This is what Olympus curtains of that era look like.

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Cheers,
Henry