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White 70mm solar filter with adjustable bolts and safety straps

Baader Planetarium

Baader Planetarium 70mm AstroSolar Binocular Filter OD 5.0

SKU CH-14XC-ZNRV0

A 70 mm solar filter with OD 5.0 film that blocks 99.999% of sunlight for safe visual observation and imaging, fitting outer diameters of 75–90 mm and inner diameters of 101–116 mm using included

  • Sharp, high-resolution solar views through premium AstroSolar Safety Film
  • Blocks 99.999% of intense sunlight with optical density 5.0 for eye protection
  • Fits outer diameters 75-90mm and inner diameters 101-116mm via adjustable centering bolts
  • Quick setup with three 13x24mm centering bolts and safety straps with glue pads
  • Stress-free film mounting preserves diffraction-limited optical quality for detailed observation

70 mm Solar Binocular Filter

The Baader Planetarium 70 mm AstroSolar binocular filter mounts AstroSolar Safety Film OD 5.0 in a stress-free cell. It is made for visual solar observation and imaging with binoculars that accept a 70 mm aperture. The film blocks 99.999 % of intense sunlight while preserving sharp, high-resolution views.

Adjustable Fit for Compatible Binoculars

Observers with binoculars whose outer diameter falls between 75 mm and 90 mm or inner diameter between 101 mm and 116 mm can secure the filter using the supplied centering bolts and safety straps. Buyers whose instruments sit outside those clamping ranges or who need a filter for a different aperture size should look at other solutions.

Optical Density 5.0 Safety Rating

The single specification that determines suitability is the optical density of 5.0, which attenuates solar radiation to the level required for direct visual use. If your application demands a different density for photography-only setups, this filter will not match that requirement.

Highlights

  • Sharp, high-resolution solar views through premium AstroSolar Safety Film
  • Blocks 99.999% of intense sunlight with optical density 5.0 for eye protection
  • Fits outer diameters 75-90mm and inner diameters 101-116mm via adjustable centering bolts
  • Quick setup with three 13x24mm centering bolts and safety straps with glue pads
  • Stress-free film mounting preserves diffraction-limited optical quality for detailed observation

Specifications

No published specifications for this item yet.

Questions about this item

Does the 70 mm AstroSolar filter generate any heat or require power during all-day solar viewing?

The filter is a passive optical element with OD 5.0 film that blocks 99.999 % of sunlight; it produces no heat of its own and needs no electricity.

What must my binoculars already have for the 70 mm filter to attach securely?

Your binoculars need front cells with an outer diameter between 75 mm and 90 mm or an inner diameter between 101 mm and 116 mm so the adjustable centering bolts can clamp the filter.

Will the 13 x 24 mm centering bolts and safety straps work with older binoculars that have non-standard front rings?

The three bolts slide in slots to match the 75-90 mm outer or 101-116 mm inner clamping ranges, and the glue-pad straps add a secondary hold on most vintage barrels.

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