Ep 198: Auto ISO, high speed sync and white balance

Gina shares a hack on how to use high speed sync when you normally can’t! It’s about getting your speedlite to become intimate with your studio light – and convincing your camera to perform shutter speeds it usually won’t do. All is revealed in this episode, along with the benefits of using auto-ISO – and why this is a great function to take advantage of especially if you’re doing events.

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Show Notes

Useful Links

Travel Duffel Coat Hack

Documentary on Agnelli

Listener question from Abigail

What do your white balance settings look like on the wedding day?

Find out in this episode.

Shout Out

Image by Danette Zak


High Speed Sync Studio light hack

Transmitter Settings
M Mode
High Speed Sync
1/128th power

Above: Canon ST-E3_RT speedlite transmitter


Above: Studio light showing optical slave on


Above: Speedlite getting cosy with studio light


Above: Image photographed with Canon 5DMK4 @ 1/8000th sec ISO 100 F1.8 using elinchrom RX600 studio flash synced from Canon 600 speedlite and ST-E3_RT speedlite transmitter

Using auto ISO and TTL flash for events

  • One of the trickiest parts about shooting events ( Weddings.parties.conferences) is that they often involve chasing shots that are in different settings.
  • You might be going from a dark room lit by fairy lights to brightly sunlit patio.

Riding the shutter or shooting aperture priority are workarounds

  • Many event photographers like to shoot in Aperture priority
  • The photographer selects the Aperture and ISO and the camera picks the right shutter speed
  • This works ok until you start working with fast moving objects ( dancers) or a using a long lens and want to avoid camera shake

But have you considered working with auto ISO?

What is ISO

  • ISO controls how sensitive the camera sensor is to light
  • Fear around shooting high ISO originated from the film days and early digital cameras
  • Film days ISO 800 was shite
  • Early days of digital 800 also looked shite particularly in the higher MB cameras
  • ISO controls how sensitive the camera sensor is to light
  • Lower the number the lower the sensitivity
  • Higher the number the greater the sensitivity
  • Cranking up the ISO works much like a dimmer switch on a light

Working with Auto ISO

  • Auto ISO is located on the ISO dial on a canon it’s just before the 100 ISO setting.
  • You can then set max ISO settings so your camera doesn’t get overexcited and work in extreme ISOs.
  • If you are shooting in Aperture priority you can also program the camera to not go below a certain shutter speed
  • Eg if you are shooting dancers or action or using a long lens then you may want to program the camera to not go below 1/250th of a sec and no higher than ISO 1600


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Gina Milicia is one of the most widely known and respected photographers in Australia. She is the master of capturing that ‘magical moment’... READ MORE

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