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The #305 Step-Down Ring from Heliopan permits the use of 30.5 filters on lenses with a Bay 1 mount. It features a durable brass construction to prevent jamming and binding, and it has a matte black finish to reduce reflections.
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Heliopan Bay 1-30.5 Step-Down Ring (#305)
Key Features
- Use 30.5 Filters on Bay 1 Lens
- Brass Construction
- Matte Black Finish
The #305 Step-Down Ring from Heliopan permits the use of 30.5 filters on lenses with a Bay 1 mount. It features a durable brass construction to prevent jamming and binding, and it has a matte black finish to reduce reflections.
Heliopan 700305 Overview
Heliopan 700305 Specs
| Size (Lens to Filter) | |
| Ring Material | |
| Knurling |
Packaging Info
| Package Weight | |
| Box Dimensions (LxWxH) |
Heliopan 700305 Reviews
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What is the overall diameter of this step-down ...
What is the overall diameter of this step-down adapter ring?
There are no published measurements of the diameter of the Heliopan Bay 1-30.5 Step-Down Ring (#305).
Date published: 2023-07-19