High Speed Sync Flash Sony Explained: A UK Buyer's Guide

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If you are wondering how to master a high speed sync flash for Sony, the answer lies in understanding your camera's shutter mechanism. High Speed Sync (HSS) is a crucial flash technology that enables Sony Alpha mirrorless cameras to use a flash at shutter speeds up to 1/8000s, bypassing the mechanical limitation of the standard 1/250s sync speed. By pulsing light continuously as the shutter curtains move across the sensor, HSS ensures your entire image is exposed correctly, allowing you to achieve a shallow depth of field even on the brightest British summer days.

Based on our testing across various Sony A7 and A9 models in our Manchester studio, mastering HSS transforms outdoor portraiture. Furthermore, according to UK guidelines for professional electronic equipment, ensuring your gear is UKCA marked—like the Godox S-TTL range—guarantees both safety and reliability when working on demanding commercial shoots.

What is high speed sync (HSS) on a Sony camera?

To put it simply, high speed sync is a feature that overrides your Sony camera's maximum sync speed. Normally, if you shoot faster than 1/250s with a standard flash, the second shutter curtain begins to close before the first one fully opens. Consequently, a standard flash burst will only expose a slit of the sensor, leaving a dark black band across your photograph.

However, when you activate HSS, the flash emits a rapid series of micro-bursts. This continuous output illuminates the entire sensor as the shutter slit travels across it. Therefore, you can easily shoot at 1/4000s or 1/8000s, perfectly freezing fast action or allowing you to use an f/1.4 aperture in glaring midday sun.

How do I enable high speed sync on my Sony flash?

Setting up your equipment correctly is paramount. Based on our hands-on experience, enabling HSS on a Sony system paired with a Godox S-TTL unit is incredibly straightforward.

• First, ensure your Godox S-TTL flash is securely mounted to your Sony camera's multi-interface shoe, or connected via a compatible wireless trigger.
• Next, navigate to your Sony camera's menu, locate the 'Flash Mode' settings, and ent is set to 'Fill-flash'.
• Finally, press the SYNC button on your Godox S-TTL flash (often denoted by a lightning bolt and an 'H') until the HSS icon appears on the LCD screen.

As a result, your camera will now automatically communicate with the flash, allowing you to dial in shutter speeds well beyond the native limit.

Why use a Godox S-TTL flash for Sony?

While proprietary Sony flashes are excellent, the Godox S-TTL system provides unrivalled value and versatility for UK photographers. Not only does it boast flawless integration with Sony's Through-The-Lens (TTL) metering, but it also offers a robust 2.4GHz wireless radio system. In addition, the unpredictable nature of British weather means you often need to adapt quickly; having a reliable S-TTL flash allows you to seamlessly switch between overpowering the sun during a bright interval and providing subtle fill light when the clouds roll in.

Does high speed sync reduce flash power?

Yes, it is important to note that using high speed sync does significantly reduce your flash's effective power