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Inon Announces –4.0ND Filter for S-2000
By Ian Bongso-Seldrup, December 30, 2018 @ 02:30 AM (EST)

Inon has released a neutral density filter for its S-2000 strobe that provides minus four stops of compensation. The –4.0 ND Filter is designed to lower strobe output at 4.0EV to avoid overexposing macro subjects when using large apertures or ISOs.

According to Inon, the filter is made of a material that allows transmission of infrared wavelengths, which avoids heat buildup inside the strobe, and the tinting reduces the intensity of all wavelengths equally to preserve accurate colors.

Consult your Inon dealer for availability and pricing.


–4.0 ND Filter for S-2000

INON INC. is pleased to announce official release of new –4.0 ND Filter for S-2000 to use for the S-2000 strobe to reduce strobe output at 4.0EV on December 22nd, 2018.

–4.0 ND Filter for S-2000*

  • Release date                  : December 22nd, 2018
  • JAN code                        : 456212143 896 5

–4.0 ND Filter for S-2000 installed on the S-2000 strobe

*The –4.0 ND Filter for S-2000 is compatible only with S-2000 strobe and not usable for any other strobe.

Product features

Prevent washed-out images in macro shooting

When shooting a subject from close range, using open aperture or higher ISO setting etc. would give you overexposed images by too much strobe light.  Using the –4.0 ND Filter for S-2000* reduces strobe output at 4.0EV and dramatically helps not to have overexposed images.

Left: Without -4.0 ND Filter for S-2000, Right: With -4.0 ND Filter for S-2000

Equipment: SONY DSC-RX100V, UCL-67 M67 Close-up Lens, 2 x S-2000 strobes set at minimum “–5” position and located at close range of the subject.
Photo data: F2.8, 1/250, ISO125
Photo by: Kazuki Nakata (INON INC.) at “Wannai”, Osezaki, Shizuoka, Japan

Constant color balance even through the filter

Thanks to carefully designed –4.0 ND Filter for S-2000 to manage color balance of strobe light transmitted through it, tint of native strobe light and tint of strobe light through the filter is almost same. The –4.0 ND Filter for S-2000 is designed to reduce strobe power at 4.0EV and successfully reproduces natural color of a subject.

Superior heat transmittance

The –4.0 ND Filter for S-2000 is made of special material which carries significantly high infrared ray transmittance not to keep generated heat inside of the combined strobe but to offer same sequential flash performance without the filter and to reduce strobe output at 4.0EV at the same time.

Provide further faint Manual flash

The S-2000 strobe originally offers 13steps with 1/2EV increments Manual flash mode. Using the –4.0 ND Filter for S-2000 adds extra faint power settings for further creative lighting.

Relavant information on INON website

Underwater S-TTL auto strobe S-2000


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