GCC-3011A Visible Absorptive Neutral Density Filters

Five mounted visible absorptive neutral-density filters are listed by complete model and optical-density label. The source supplies five OD options from 0.5 to 3.0 with nominal percentages, but no measurement wavelength, tolerance or power conditions. All cards reuse an OD1.0 photograph; use the selected SKU’s text for its density rating.

Models and density labels

GCC-301115A is labeled OD0.5 (32%), 301116A OD0.6 (25%), 301117A OD1.0 (10%), 301119A OD2.0 (1%) and 301120A OD3.0 (0.1%). Percentages are retained as source nominal labels, not certified measurements. Measurement wavelength, tolerance and curves are absent. Unlisted density models are not added.

Visible absorptive construction and performance

The source explicitly calls these visible absorptive neutral-density filters but defines neither the visible operating range nor spectral flatness. Reflectance, polarization dependence, angle dependence, substrate and coating are unspecified. UV or IR compatibility is not established, nor is the labeled transmission guaranteed at every wavelength. A reused photograph cannot verify the appearance of each density option.

Mounted size and installation

Cards state mounted Φ25.4 without units or a definition of optic diameter, frame diameter or clear aperture. Photographs show a shallow black round cell with a recessed dark optical surface. Thickness, mounting interfaces, tolerances, threads and clamping requirements are absent; compatibility with a one-inch mount is not established. Every photograph is engraved GCC-301117A OD=1.0 and does not override the other SKU labels.

Power, cleaning and supply

Absorbed-power limits, thermal loading, damage threshold and temperature limits are not supplied. Optical density does not establish permitted laser power. Confirm cleaning, pack quantity, delivery and holders separately. Custom-size promotion is a series note without a separate custom SKU; agree material, dimensions and OD for any custom order.

Selection checklist

Complete model, OD and nominal percentage

Actual operating band and transmission requirement

Units, diameter datum and mounting for Φ25.4

Absorbed power, cleaning, quantity and delivery

To be confirmed

Operating band, OD tolerance and spectral flatness

Size units, thickness and clear aperture

Substrate, coating, reflectance and power limits

Quantity, holder and cleaning method