What’s the Key?

There’s been a spate of new Mirrorless Interchangeable Cameras released the past few months. The Olympus OM-D EM-1 made the news. Flagship, milestone camera – superfast autofocus, fastest in the Olympus family. A nice bunch of classic and current model lenses with more to come. Then Sony rumbled with the Sony A7 duo – full frame (wow!, the words just excite by themselves, Full effing Frame – pardon the lapse in language). You’d think that the gear lust-ers had reached their ultimate nirvana. Rest and chew the Lotus, and all that. No. No. Just announced and being released, the Fuji X-T1 – it’s not Full Frame, but suddenly, what’s the joy in that huh? It looks like a classic Contax RTS. Hardly have time to the drool off the screen with ry with a micro fibre cloth. Ditch the Sony. Get this. Get on the Gear Acquisition Syndrome train. Get on it before the months pass. Before the next must-have-better-than-the-last model appears. Either that or find a Life Expert.

Understanding basic electronic flash modes on Micro Four Thirds cameras and TTL Flashes

Purpose

A good friend asked for a work-together on figuring out his Olympus XZ-1 (pdf) and Nissin Di 466 TTL flash (pdf). It was confusing the heck out of him and after some early surprises, I was wondering about how it was supposed to work as well. So, this is for the beginner. If you are not a beginner, pass on this and visit Joe McNally, David Hobby, Mark Wallace to name a few gurus.

Approach: Auto Flash

Exposure Modes on the camera body

Typically there are following exposure modes – iAuto, Program Mode, Aperture Priority, Shutter Priority and Manual Exposure. Remember that without the flash, the camera in iAuto, P A or S mode will measure the scene light and adjust the f/no, shutter speed and ISO (if that is Auto ISO) for a standard exposure. With the flash fitted and both flash and camera switched on, even the M mode with Auto TTL flash will use calculations by the camera.

Flash menu icons on the camera body

Look for the Lightning Bolt (text describes this as Fill-In) – there is an implication to the description. It means

• the flash will explicitly fire
• the natural light of the scene will be measured with the camera’s chosen shutter speed, f/no and ISO settings.
• will fire to top up the light..

Settings on the flash itself

Set the flash to Auto-TTL mode - on the Nissin Di-466 this means the Mode LED is unlit

What to set

To reiterate – put the camera on iAuto, P A S or M and the flash on Auto TTL. The camera will automatically calculate how much flash light to use to top up the available light.

• This will be satisfactory if you are happy enough with the resulting exposure and don’t want to calculate or test anything.
• If you find the resulting exposure is a little darker than you prefer (for example a person’s skin tone appears too dark), either
• use the camera’s menu for flash +/- compensation to adjust brightness

• use the +/- buttons on the flash body to adjust brightness

Reasons not to use Approach: Auto Flash

• Even using the +/- compensation, the camera controlled flash is not outputting the full power of the flash. Remember, the camera first calculates the scene and then the human intervention is applied as an adjustment of the calculation.

Approach: Manual Flash

• Set the camera body to M for Manual Exposure Mode.
• Choose some starter settings for the camera body. For example, f/4, 1/100th sec shutter speed, ISO 200.
• Set the flash to non TTL - full manual mode. On the Nissin Di466, that means the Mode LED should be showing a red colour.
• Set the flash to medium power say 1/4 power. On the Nissin Di466 that means press the +/- buttons to light up half the power status LEDs.
• Aim and shoot. Chimp, decide whether you want darker or lighter and adjust the
• flash power
• ISO
• flash distance to subject
• bounce or direct with diffuser
• Rinse and repeat (no, not literally)

Reasons not to use Approach: Manual Flash

• You can't afford the time and effort to chimp and adjust until satisfactory
• Approach: Flash Auto is working fine.

The Use of Style to Convey a Narrative

I'm usually not conflicted in deciding between a Monochrome vs Colour interpretation in my photos. I prefer natural or visually believable colour to preserve the essence that colour conveys. I choose a Black and White interpretation when colour is intrusive or detracts in conveying shape and texture. This is one instance, when I think either works because they do convey different messages.

The Monochrome Version

Straight Out Of The Camera JPEG from the Panasonic G2 set to Dynamic Black and White Profile

I feel the texture of the fabric and the back of the Dragon Head's puppeteer, the exaggerated stance of the guy holding the cymbals and the frozen-in-time women are emphasised by this treatment

The Colour Version

Processed from raw through Adobe Lightroom 5.3 with highlight recovery and tonal adjustments then the Nostalgia - Agfa RSX film emulation filter applied.

The colours have been grossly saturated in the film simulaiton - it gives me an old-time feel of the organic, mixed colour structure of film. The reds and yellows convey the Chinese New Year sentiment and again, the people in the scene are frozen in time for eternity, taking part in this photo.

I initially thought that this would be one of the forgotten shots but now I've got two to show.