# Hot Sale Optical ND Filter Neutral Density Filter

> Hot Sale Optical ND Filter Neutral Density Filter — a neutral density filter: Glass, 1-5mm or Custom thick. Specs, RFQ checklist and custom sizes to…

- Page: https://machiningglass.com/products/hot-sale-optical-nd-filter-neutral-density-filter/
- SKU: MG-D68431
- Category: Optical Filters > Neutral Density & Absorptive Filters
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Hot-Sale-Optical-ND-Filter-Neutral-Density-Filter.webp
- Updated: 2026-10-24

Product type: Thin Film Filter. Application: Lighting, Medical, Optical, Photography. Model: NDF09.

## Overview

Hot Sale Optical ND Filter Neutral Density Filter is a neutral density filter made from Glass. Listed geometry: size Custom, thickness 1-5mm or Custom. It is used in Lighting, Medical, Optical and Photography. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

## Specifications

| Parameter | Value |
| --- | --- |
| Material | Glass |
| Type | Thin Film Filter |
| Shape | Customized |
| Dimension | Custom |
| Usage | Lighting, Medical, Optical, Photography |
| Thickness Range | 1-5mm or Custom |
| Model NO. | NDF09 |
| Color | Gray |
| Principle | Neutral-type Filter |
| Angle of incidence | 0° |
| Neutral Density Filter Photos | Our Comapany Workshop |
| Supplier | Nano Macro Optics Co.,Ltd. |

## Technical data

| Parameter | Value |
| --- | --- |
| Material | Optical glass |
| Dimensions | custom |
| Thickness | Custom |
| Transmission range | 400-700nm or custom |
| Transmittance | Custom |

## What to specify when you request a quote

- **Spectral target** — state the centre or edge wavelength, the bandwidth and the minimum transmission in the passband.
- **Blocking** — give the blocking range and optical density (OD) the system needs.
- **Angle of incidence** — listed as “0°”; interference filters shift with angle, so specify the operating angle and cone.
- **Size and thickness** — listed as “Custom”; give outline, thickness and tolerance, and whether the filter is mounted.
- **Substrate** — listed as “Glass”; name the substrate glass if thermal or UV behaviour matters.
- **Surface quality** — quote scratch-dig for imaging paths.

## Engineering guides for this part

For material grades and coating options, see [How to Select Neutral Density Filter Glass for Optical Instruments](https://machiningglass.com/materials/how-to-select-neutral-density-filter-glass-for-optical-instruments/). For an application example, read [Precision Neutral Density Filter Glass for Appliance Optical Sensors](https://machiningglass.com/applications/precision-neutral-density-filter-glass-for-appliance-optical-sensors/). A related standard product is [Neutral Density (ND) Filter](https://machiningglass.com/products/neutral-density-nd-filter/).

## FAQ

### What is the Hot Sale Optical ND Filter Neutral Density Filter made of?

It is listed as Glass. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.

### What sizes and thicknesses are available?

The listing gives size Custom, thickness 1-5mm or Custom. Custom outlines and thicknesses are made to drawing; state the tolerance you need.

### Where is this neutral density filter used?

Listed applications: Lighting, Medical, Optical and Photography.

### What should I include in a quote request?

Include spectral target, blocking, angle of incidence, size and thickness and substrate, plus quantity and a drawing if the part is custom.

## Request a quote

Send drawings, tolerances and quantity: https://machiningglass.com/contact/?rfq_product_id=11525#mg-rfq

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Source: Custom Precision Glass Machining — https://machiningglass.com/