Product images of Eyepiece micrometer
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Manufactured in the UK
All products are printed in the UK, using the latest digital presses and a giclée printmaking process.
We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.
This is a parallel wire distance eyepiece micrometer which is a type of filar micrometer. The eyepiece micrometer has a focal length of 38.1mm. It has a large thread and has all its working parts made of brass, except the screw which is made of steel.
Johann Alexander Herschel
- Image reference: F3354
- National Maritime Museum, Greenwich, London, Herschel Collection