Neewer FL-20: ND Gel Filter Set for Studio Lighting — main product image

Neewer FL-20: ND Gel Filter Set for Studio Lighting

Neewer

Neewer FL-20: ND Gel Filter Set for Studio Lighting

Name: Neewer FL-20: ND Gel Filter Set for Studio Lighting
Brand: Neewer
SKU: FL-20

★★★★★3.9 (25 reviews)

Three gel ND densities in one set — precisely trim studio strobe or continuous light output by 1, 2, or 3 stops without touching a power dial.

$9.99*

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*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.

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Overview

The Neewer FL-20 ND Gel Filter Set gives studio photographers and videographers a direct, non-destructive way to reduce light output from strobes and continuous sources without altering power settings. The three-sheet set — ND3, ND6, and ND9 — steps down output in single-stop increments from 1 to 3 stops, addressing the practical gap that appears when a monolight's minimum power setting still produces more light than a given setup requires. This is particularly relevant in close-quarters product photography, high-key portraiture with multiple heads, or video setups where maintaining a specific aperture for depth of field demands finer output control than a strobe's power dial can deliver.

Each gel sheet measures 16" x 20" — a generous size that covers most studio fixtures directly or provides ample material to cut down for smaller modifier openings. The polyester construction is durable enough for repeated handling and repositioning across sessions, though it warrants careful flat storage between uses to prevent creasing. The sheets are designed for strobe and LED sources; high-heat tungsten or HMI fixtures exceed polyester's heat tolerance and require purpose-built heat-resistant gel stock instead. No mounting hardware is included, so photographers will need clips, gaffer tape, or a gel holder frame to secure sheets to their specific fixtures. As a practical light-shaping tool in an LED- or strobe-based studio, the FL-20 delivers precise output control at a modest price point.

Specifications

Brand

Neewer

Model

FL-20

Included Sheets

ND3, ND6, ND9

Light Reduction

ND3: 1 stop / ND6: 2 stops / ND9: 3 stops

Sheet Size

16" x 20" (40 x 50cm) each

Material

Polyester

Filter Type

Neutral Density (Gel)

Pros & Cons

👍 Pros

Three distinct densities in one set cover the most practical studio dimming range without buying individual sheets separately — a cost-efficient starting kit for ND gel work.
16" x 20" sheet size is large enough to cover most studio fixtures directly or cut down to fit smaller modifiers without waste.
Polyester material holds its shape after cutting and can be re-positioned or re-used across multiple sessions without degrading.
Allows light output reduction without adjusting the strobe's power setting, which is useful when maintaining a specific color temperature or flash duration at a fixed power level.
ND9 (3-stop) sheet provides meaningful dimming for situations where even a monolight at minimum power is still too bright for the desired exposure.

👎 Cons

Polyester construction limits safe use to lower-heat sources — high-wattage tungsten or HMI fixtures can warp or damage these sheets, requiring heat-resistant gel alternatives.
Neutral density gels do not provide perfectly flat spectral response at all densities; critical color work should be tested rather than assumed to be cast-free.
No frame, holder, or attachment system is included — securing gel sheets to fixtures requires clip, tape, or a dedicated gel holder purchased separately.
Maximum reduction of 3 stops (as individual sheets) may be insufficient for situations requiring 4 or more stops of light control.
Polyester sheets can develop creases from storage or repeated rolling, which may create uneven light distribution if not stored and handled flat.

Frequently Asked Questions

What light reduction does each filter in the FL-20 set provide?

ND3 reduces output by 1 stop, ND6 by 2 stops, and ND9 by 3 stops. Used individually or stacked, these three sheets give you 1 to 3 stops of light reduction in single-stop increments, covering the most common dimming scenarios in studio work.

Can the FL-20 gel sheets be cut to fit different fixture sizes?

Yes. Each sheet measures 16" x 20" (40 x 50cm), which is large enough to cut down and fit most studio strobes, softboxes, monolights, and continuous LED panels. A utility knife and a straight edge give clean cuts that hold their shape without fraying.

Will these ND gels introduce a color cast to the light passing through them?

Neutral density gels are designed to reduce intensity without shifting color temperature. However, at extreme densities or when stacking multiple sheets, slight color deviations can occur. For critical color-matched work, test with a colorimeter or camera white balance before committing to a final setup.

Are these sheets suitable for use with high-heat tungsten or HMI fixtures?

The FL-20 sheets are polyester, which has moderate heat resistance. They are most appropriate for strobe, LED, or lower-wattage continuous sources. For high-heat tungsten or HMI fixtures, purpose-built heat-resistant gel stock is recommended to prevent warping or damage.

Can sheets be stacked to achieve more than 3 stops of reduction?

Yes — stacking the ND3, ND6, and ND9 together can yield cumulative reduction, though each additional layer introduces a small risk of color shift and uneven density. For controlled work, single-sheet placement at the correct density is preferable.