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Gloxy GX-F990 TTL HSS Flash for Canon (20 free gels)

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Product Description

Gloxy GX-F990 TTL HSS Flash for Canon

The Gloxy GX-F990 C TTL HSS Flash works with Canon DSLRs, therefore it may be used in slave mode with just about any camera on the marketplace up to a distance of up to 30 metres.

Its primary feature is the arrival of 1/8000sec high speed sync (HSS) this makes it excellent for high-speed action photography and can be used when you need to employ a shutter speed which is faster than your camera’s built in flash sync speed, or whenever you want to use a wider aperture setting that will need a higher shutter speed as it is often the case with outdoor daylight shooting.

The style of the construction is very similar in look and feel to Canon's own-brand flashguns, with an almost identical button layout and a scroll wheel to change the settings values.

Gloxy GX-F990 Flash also incorporates a power-saving mode, once the flash is inactive for twenty seconds, the back-light will turn itself off after twenty seconds, after sixty seconds it will fall asleep and after thirty minutes it will automatically turn off.

A high-speed sync provides you with far more creative control over your shots, especially in aperture-priority mode. Once you grasp this technique you will have the ability to take shots which will grab people’s attention and also have them thinking exactly how it was taken. High-speed sync prevails over the restrictions of the cameras built in flash sync.

Product features:

  • The Gloxy GX-F990 Flash incorporates wireless sensor activation.
  • Exposure compensation, supports TTL functions, exposure bracketing, exposure lock, etc.
  • Compatible with Canon DSLR cameras.
  • Outdoor outlet to connect an external power supply.
  • Supports continuous high speed shooting.
  • High-Speed Sync (HSS) to 1/8000.
  • Save energy thanks to the automatic flash shut down system.
  • Enhanced protection against overheating uses automatic temperature sensing.
  • The Gloxy GX-F990 Flash includes a support, a diffuser, an instruction manual and a handy high quality carry case.

TTL provides a simple method of employing dedicated flash units off camera, especially multiple speed lights, by itself or combined with additional light sources. With wireless TTL you can maneuver the flash several inches or even a few metres, also enabling to modify the light in any preferred manner, and without having to recalculate exposures, make use of a flash meter, or link everything together with cables. 

The flash also supports exposure compensation, exposure bracketing, exposure lock and has enhanced protection against overheating and automatic temperature sensing using an automatic temperature sensor that uses an ‘optimised heat sink', that safeguards the device against overheating by letting it cool off more rapidly between shots.

This device supports high-speed continuous shooting and enables a rotation angle of 330º in addition to an inclination of 0º to 90º.  The flash comes complete with a flash stand to operate the flash as a slave device, a diffuser, a user manual, a built in outdoor outlet to connect an external power supply and protection case.

 The Gloxy GX-F990 Flash has received the "Great Value" medal from Nphoto magazine

Gloxy GX-F990 C TTL HSS Flash Canon

Has also been named best flash by Amateur Photographer

Gloxy GX-F990 C TTL HSS Flash Canon


Technical Details

Guide Number

54 (ISO100, 105mm)

Tilt angle

0 - 90 º


0 - 360º

Color temperature

5500 K

Recycling Time

Approx. 0.1-6.0 (External power supply 0.1 - 4.5s)

Number of shots

100-1500 (with AA batteries)


18 - 180mm (14mm with wide angle diffuser)

Flash duration (full power)

1/200s - 1/20000s

Flash power

1/1 - 1/128

Wireless shooting distance

20-30m indoor, 10-15m outdoor.

Exposure correction

-3EV - +3EV

AF-assist Beam


Flash modes

TTL, RPT, Manual, Slave (Cell1/Cell2)

Sync. Speed


Compatible hotshoe


Energy Control

Number of batteries supported


Type of battery


Type of power supply


Weight and Dimensions


340 g

Dimensions (Length x Width x Height)

200 x 75 x 57 mm



Product Videos

Gloxy GX-F990 Unboxing (02:29)
This is the unboxing of the new Gloxy GX-F990 HSS 1/8000 (Canon and Nikon versions available).
  • Gloxy GX-F990 ...
    This is the unboxing of the new Gloxy GX-F990 HSS 1/8000 (Cano...

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