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Glossary | Telescope accessories | Capacity | Frame

The frame allows the filter to be attached to a connector, a filter holder or in the housing of a camera.

More information:

1.25"

A standard measurement for accessories, expressed as 1.25 inches. 1.25" is equal to 31.8 millimetres.

2"

A standard measurement for accessories, expressed as 2 inches. 2" is equal to 50.8 millimetres.

Lens filters

Filters that are attached or screwed onto the lens.