SVBONY SV128 2" variable polarizing filter (SVBONY, SKU: F9147B). The 2" SVBONY SV128 is a variable polarizing filter for observing the Moon and bright planets. Rotating its housing adjusts transmission from 1–40% to match image brightness to the target and observing conditions. The colour-neutral glass reduces brightness without deliberately changing the colour of the image.
Key features
• continuous transmission adjustment by rotating the housing • optical glass in an aluminium housing • attachment to accessories with an M48 × 0.75 filter thread • design too thick for the SVBONY SV226 filter drawer • not a filter for solar observing
Included items
• variable polarizing filter: SVBONY SV128 2"
Technical specifications
• filter type: variable polarizing • filter standard: 2" • transmission: 1–40% • optical material: glass • filter thickness: 4.8 mm • housing material: aluminium • thread: M48 × 0.75 • warranty: 12 months
Adjustable transmission lets you match the brightness of the Moon and planets without changing the filter.
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