The camera in the photo is to show what this lens looks like mounted and is not included.
Laser Drilled Pinhole Lens body cap for all Olympus OM mount cameras. The f stop is 167

Compare prices, this is the highest quality at an affordable price so get creative and discover the amazing world of pinhole photography. Pinhole size is 0.3mm. This is the optimum size for this focal distance and provides the best sharpness, color saturation, and contrast.
These are scientific grade apertures and have been utilized by universities and laboratories. The second photo shows the pinhole at 800x under the microscope.
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