The simplest…

Sometimes, when you are immersed in a profession, you forget that not everyone is even familiar with the language used in that profession, let alone with some of its principles and practices. As an engineer who teaches, I try never to fall victim to that thinking. But sometimes even I do. So in the next series of blog posts, I will briefly define some of the basics. Just in case.

Starting, today, with flash modes.

Your small, camera mounted, flash has a “mode” button. That button gives you access to some of the following modes:

  • TTL (also, “E-TTL”, or “TTL-BL”, etc). This means “automatic flash power”. The camera and the flash together sort out how much power is needed for every photo. They do that with a mechanism that I explain in my courses, books, and workshops. That mechanism is called “TTL”. You do not have to worry about your subject’s brightness, at least in theory: the camera and flash sort it out.
  • MANUAL (Also called “M” or “MAN).  In that mode, you set the flash power. You can, for instance, set it to 1/1, or 100% power: the brightest power level. Or 1/2 (half power), 1/4 (one quarter of its top power), 1/8, and so on. On some cameras, you can go as low as 1/128 power, a very low flash level. So in this mode, if your flash is too bright, you would turn it down to a lower level (or move back from what you are lighting); if it is too dim, you would turn it up (or move closer).
  • Repeating flash, or stroboscopic flash. In this mode, the flash will flash not once, but a defined number of times, with a defined interval. You need to define the number of flashes, the interval, and the power level. (E.g. “5 flashes, at a frequency of 10 flashes per second, at 1/16 power”). That allows you to make photos of, say, a runner against a dark background, where you see not one, but ten images of that runner as she moves through your photo.

There may even be modes additional to this. Depending on the flash you use, there may also be a setting that tells the flash that it is a remote flash, and there may be a setting that allows the flash to be used at fast shutter speeds, but at a reduced power level (“High Speed Flash”, or “FP Flash”). There could be other settings as well, like a “dumb slave setting” (Nikon calls this the “SU-4” setting).

All those additional settings are not modes, but they are what I called them: additional settings. I know, that may be confusing to you (“what is a mode and what is an additional setting?”), but if so, don’t worry about it. It’s what the engineers decided to do. The reasons for not calling these settings “modes” are not important right now.

So there you have it. Some flash “basic basics”.

In my flash courses, I explain al this in detail, of course.

Want to learn more: buy the pro flash manual, and if you are in Toronto, sign up right now for the 25 March portrait and model lighting workshop.  See you there?

If you like sharp and crisp…

…then use flash. And if you use flash, then use it off camera.

Flash is crisp and sharp. Or rather, using flash leads to crisp photos because:

  • Contrast is perceived as crisp sharpness.
  • Flash lasts 1/1000 sec or less, and that means your effective shutter speed is 1/1000 sec or less.

Like this:

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Alternately…

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Maybe better: close to the ground to get a ‘cat’s eye view’:

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1/30 sec at f/11, 400 ISO. Meaning, the ambient light basically disappears. The photo is crisp because although the shutter is slow, ambient light does basically nothing and the flash speed (1/16,000 sec, because the flash is set to 1/16 power) is the effective shutter speed.

…all of which is made like this:

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The flashes are on the right: three flashes fired by one pocket wizard.  Note that in this last image, I used a very slow shutter speed (several seconds, if I recall correctly) in order to show some of the ambient scene.

Anyway: can you see how much more lively and “real” these images look than a simple “even lighting” image, such as a “natural light” image that some photographers proudly boast is their only source of light?

One more thing to note: I am using three flashes connected via a three-flash mount (see yesterday’s post). With no softening modifier such as an umbrella or a softbox. The take-away lesson from this: When using off-camera flash, a softening modifier is not always needed.  

Fun with Colours: flashes, gels, mirrors.

The things some people do in their bedrooms in private! In preparation for tomorrow’s hands-on flash course I outfitted some flashes with coloured gels tonight. 

I used Honlphoto gels, seen bottom right here in a double wrap:

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I had three flashes mounted on a stand that uses one radio trigger (like a Pocketwizard) to fire all three flashes (thus saving two radio triggers). I have discussed this three-way mount here before. I also used grids (also Honlphoto) to get three separate light circles.

As said, where all three flashes mix, you get white. After you get the ratios right, that is: the gels take light (also discussed here in a recent post) and you may need to turn one or two of them up to compensate.

Once you are done, you get white. You see it here in the centre:

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And here:

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TIP: To get the ratio right, you look at the RGB histogram. The peaks for red, blue and green need to be at the same distance from the edges.

Looking at the flashes you see the three colours I chose:

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Red, Green and Blue. Surprise, surprise!

You see, when these colours mix, that once you get the ratios right, you get white overall. But when only two of them mix you get “in between” colours, which include cyan, yellow, and magenta:

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So now you know why you see RGB and CYMK (where “K” means “Black”) as two alternate ways to mix several basic colours!

I also had unrelated flash fun, of course. f/32:

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And my spinning top:

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On a concave mirror, that is:

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The moral of this post?

You should have fun with your photography, and explore, and try out different things. How many of you have gels, and how many of you have used these to mix light in different ways? That’s how you learn about light. So for those of you not coming to tomorrow’s course: go have fun, And sign up for the one after the next one: tomorrow and next week are full up, but 6 November still has a few spots open.

Any way you do it: learn about light, and have fun.


PS for Honl modifiers, which I strongly recommend, go to this link and use discount code “Willems” at checkout to get an additional 10% off.


Lightroom Bug with Sierra

If you have upgraded your Mac to Sierra, the new OS, Lightroom may show a bit of a bug in the Import module.

When trying to import, you see this dialog:

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A few things are missing there, aren’t they? “File Renaming” and in particular, the essential “Destination” dialog is missing.

The solution? For now, until the bug is fixed, just right-click on one of the two that do show, File Handling or Apply During Import:

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…and then click on the two missing dialogs, “File Renaming” and “Destination” to activate them, so a tick mark appears next to them too.

You now see all four again, and you can set your destination as always:

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So although this little bug is annoying, it is easy to bypass.

Now to celebrate, here is Mau Mau, surrounded by (and lit by) two flashes:

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Taken at 100 ISO, 1/200 sec, and f/22, with the flashes set to 1/16 power, using a Yongnuo YN622C-TX on the camera and a YN622C connected to each one of the the flashes.

 

Mistakes are how we learn…

….and I can make them too. Today is an example.

I just bought a used Canon ST-E3-RT wireless flash control transmitter. A great piece of engineering. And also a good piece of business, for Canon. And also a mistake, for me.
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Because as I told the seller, “This one does radio as well as IR, IIRC”.

If I had only looked that up instead of relying on my recollection! Because no, it does not do light/infrared control. It only does radio control. Meaning I can control 600EX flashes, but not the six 580EX and 430EX flashes that I own. My only 600EX is faulty and needs an expensive repair or replacement.

So I have a controller that is a marvellous piece of engineering, but it only controls 600EX flashes that I do not own. Review some time when I do own 600EX flashes!

And careful when you rely on recollection. “IIRC” (if I recall correctly) implies that you might be wrong. Which I was.

Why is this flash, as I put it, a great business move? Because it forces photographers like me to buy only new 600EX flashes, and yo discard their 430EX and 580EX flashes. Which would be fine if it was one flash… but I have six of them!

Moral of the story? Check things before you trust your recollection; every time you say “IIRC”, realize you could be wrong.

(PS: Anyone looking for an ST-E3-RT? :-) )