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Shooting flash in the broad daylight always seems to bother people for some reason. I think that people are afraid that it’s complicated or some black art that is impossible to master. Listen, flash is just a self contained light that is run by batteries. Nothing magically about it or really hard to understand. The light from a flash works exactly the same way sunlight works or any other light. It has color, it will drop off in intensity over distance (square inverse law) and you can shape it. Probably the biggest reason people are suspect of flash in the daytime is that most camera can not do it well so you get blown out images or the traditional “hot spot” in the face or it’s still dark even though the flash fired.
To really use flash in the daytime, get manual. Forget that you spent a large sum of money on a camera that can virtually think for it’s self, put the dial on M for manual and learn how to set things up the way YOU want it. When I learned to shoot film, there was a rule pounded in to our collective heads. It’s been somewhat forgotten now by the users of digital but it is called the “Sunny Rule of 16″. For a bright sunny day, set the camera to ISO (ASA) 100, shutter to 1/125 (1/100) and F16 on the lens. That will get you 95% there for a properly lit exposure in bright sunlight. Once you have that, you can adjust each parameter and work out the others pretty easily.
What we need to know is that when shooting flash on a sunny day (or any other time) is that your shutter speed controls the ambient light and that the aperture controls the flash exposure. Why? Because the flash duration can be something like 1/42,000 (1/128 power) of a second which is way faster than your camera’s shutter at it’s best. Even at full power, the typical small flash is about 1/2000 of a second flash duration. And when you are shoot at 1/250-1/320 sync speeds, the flash is still way faster than your shutter speed. Since aperture controls how MUCH light comes in, you can adjust the intensity of the flash by either opening or closing the blades. Wide open is more light in and stopped down means alot less light is coming in.
The shutter on the other hand controls how LONG the light will hit the sensor or film. Short shutter speed means less exposure and longer shutter means more exposure. So if the flash is 1/32,000 of second long, when your shutter is at 1/200 second, you will get how ever much flash light there will be in that 1/32,000 of a second. What you CAN adjust with the shutter is the AMBIENT light. Or in this case, how bright the daylight will be. Slow shutter means lots of exposure and a short shutter means less ambient light. In the two images below, I shot both with exactly the same shutter and ISO but I added a Neutral Density Filter X2 which works just like pushing the aperture to F22 ( 1 stop) which my 50mm can not do.
This shows how the aperture adjusts the ambient light while the shutter and ISO stayed the same. What does that mean for us with a flash? Well, all things being equal, you can dial in your exposure with the flash by tweaking on the F stop. Of course, you need to have some range to do this, about F5.6 to start would be nice and thats tough in broad daylight. But not impossible. Lets do some math
If I start at ISO 100 and 1/125 shutter with F16 and I want to go lower on my F stop, how can I do that? I can drop ISO which I can not right now and I can UP the shutter speed controls my ambient light. So I raise my shutter 1/250, thats one F stop and I can cheat a bit and go to 1/320 shutter, thats two full F stops. So now I’m at ISO 100, 1/320 shutter and F8. With a neutral desity filter X2, I can go down one more F stop to F 5.6 which is right where I want to be. My exposure has not changed from the first set at ISO 100, 1/125 and F16. So now I have less depth of field, I have about 3 stops to work the ambient light to darken skies etc.
So this means that I have the ability to dial down the sky and use my flash to light up my subject even though it’s high noon or if I want a bit more drama at sunset. OK.. ok.. so enough about this ambient light stuff, how do we use a flash? Pretty easy when you think about it. When you have the ISO at 100, the shutter at 1/125 and F16 for your aperture, the typical small flash like the SB800 needs to be eight feet away and full power to give the proper exposure.
You can see that we can easily light up the subject with an SB800 from about 8 feet away. But what if we wanted to use less than full power? Or get depth of field? Easily done by juggling the parameters. Lets bring the flash in to about 4 feet and cut the power to 1/2. Nothing else has changed. ISO, Shutter and F stop are still the same. I did zoom in a bit tighter so you can see the lighting closely.
Now what if I wanted to darken the background a bit more. Remember, ambient light is controlled by my shutter so I will raise my shutter one stop to 1/320 which is about the max I can go with my wireless triggers before I start cutting off the image with the shutter shadow.
You can see the exposure of the subject is the same but the background went a bit darker. So now what happens if I use one of those plastic diffusers? The kind that comes with the SB800 and snaps onto the front? Well, it means I can move my flash way in close and get softer light since the size of the light source relative to the subject has gotten alot bigger than when it was 8 feet away. I’m still at 1/2 power, broad daylight with the same shutter and ISO settings. Just closer and with the diffuser.
You can easily see that the diffuser eats a fair amount of light. But the tradeoff is that you can get much better quality of light when you are so close like this that it’s a pretty good trade off.
I hope you can see from the images that understanding daylight use of the flash is not that hard once you keep some basic rules in your head. It’s not very magically but it is very useful. These images are just simple demonstrations of the ideas but I will be putting up some real portrait work later using these same ideas. So get out there with your flash and light something up.
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So I survived Vegas with it’s 30 dollar lunches, 25 dollar shots of Scotch and my cheap room at Mandalay bay. I guess it all balances in the end since I did not give a nickel to the slots. The keynote was awesome, the Tweet up was alot of fun, the Expo was crazy good fun and I did sneak out early because of the holiday and trying to fly home on Friday.
I split my time with several class this time. I noticed that in 2007 which was the last time I was there at PSW, I saw 95% software based classes. This time, the tracks were split between real photography classes and software like Painter, Photoshop and such. I ended wishing I could attend them all but settled on a mix of classes
My preconference class was “The Art of the Digital Canvas” with Faye Sirkis and I had high hopes for the class since I really wanted to see how to make CS5 work with the new bristle brushes. But, the class fell short of my expectations between a lack of real meat in the class and technical issues with CS5. The good news is that was the only class that fell short in my opinion. The two classes I took with Joe McNally were awesome to be in and Joe has a very good sense of presentation with humor and solid information. I took a Fashion Portrait class with David Cuerdon who I found relatively recently on Kelby’s training site and have decided that I really, really like his style and teaching methods.. The fashion class was a wealth of info on how to shoot and more importantly, retouch the shots effectively.
Zack Arias did a couple of classes but the one I went to was “Stuff you need to know to be a photographer” and as always, Zack did a bang up job of getting down to the nuts and bolts of being successful as a photographer and to figure out what is really important to you and and your craft. A hint, passion only gets you so far as a photographer.
I did the concert and event photographer on something of a lark and it was very interesting to hear how it works behind the scenes as it were. Also the choice of gear, how to get the pass and what to expect as a photographer at a concert. Alan Hess did a very good job at showing the class the real world of Concert photography and proving that yes, you can have fun while working for a living
Here are some random shots from the trip. I split my shooting between my Canon G11 and my D300. Both worked well but the Canon struggled with the low light in the classes. The D300 would work but only but shooting at 2.8 with ISO 3200 or 6400. I was really wishing for a FX camera and ISO 25,000
The NAPP Keynote was completely shot using the G11 and it did very well considering I had the zoom maxed out and the lighting was so bad. The class shots of Joe McNally were taken with the D300 at ISO 6400.
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The vendor, Westcott, sell various lighting and light modifiers to photographers and studios. They are a constant vendor at Photoshopworld and other Photography related shows. One of the most popular features of their booth has been the model shoot where a rep will demo product using a live model and then allow photographers to try their hand at a fast shoot using the same setup and equipment.
I think they just raised the bar in a big way by having four “sets” set up where they had live models and at times a still life available to shoot using the Westcott equipment. There were simple rules, you could not touch the model or the lights but you could direct the model on how you think a pose might work. This time you can submit your final images to be a possible catalog cover.
Popular? You bet!!! They had photographers coming out of the woodwork with everything from the high end Canon/Nikons to the cell phone with any number of camera in between. it was amazing to shoot and even more so just to watch. It was pretty clever in a way since you can only really make the photograph yours by model position and post work. Since the lights were fixed, you had to move the model to change the mood and you had to use some solid techniques in post to “fix” things like lights being in the image, fashion model fixing, getting rid of backdrop seams and so on.
Here are some of my shots along with a description of what I had to do in post to get to the finished or close to the finished image. Most of what I did to these images is not much different than what I do in my wedding shoots or portrait sessions here in my studio in Orange. When I shoot, many times I know when I take the shot, that I will need to do something in post like removing something or enhancing the bride and so on. Sometimes I make a mental note that a certain picture will need something specific because I know it’s a cool shot but needs editing to make it cool.
Here is my Catwoman shot in the raw. No retouching, no post of any kind except to convert it from camera RAW to JPEG to post here on my blog.
You can see from the above shot that there is quite a bit of work needed in post to make a usable image. There is a light in the upper left, the bike is on carpet, the background is too short and does not touch the carpet just to name a few things. Here is the final version or very close to my final version of Catwoman
I edited out all the extra stuff like the lights and reflector panel. I used content aware fill and free transform to stretch and edit the background. I used the Lightroom Graduated Filter with a blue tint to darken and add mood to the background. I added a concrete texture to the carpet to make it look more like asphalt. I did a fair amount of selective burning in like the front rim of the bike which was too bright. I tweaked the intensity to get the deep reds and dark blacks. I added a dark vignette around the image to help blend in the transition between backdrop and carpet. I think it turned out pretty well
In the next shot, we have a retro looking “Pin Up Queen” but we need some work here too. There is a red fabric that is competing for attention, we have tattoos on the model and we have some unsightly bulges on the bustline and arm.
And here is my final image after using several tools and some hand work.
I used liquidify to smooth out the bustline and arm. I used Portraiture to smoothout the skin and give a glamor look to the over all image. I removed the red sash hanging down in the background and I removed the tats showing on each arm.
Here are some of the rest of my shots from the Westcott model shoot. Westcott even had a couple of still lifes for those who do not like shooting people. As you can see, many times you need good post processing to really bring out the best of a picture whether it be a still life, a fashion shoot or even a wedding. I’ve seen good images with bad post processing and they just do not work well. I’ve seen marginal images but with excellent post processing and they work pretty well. Taking the shot is just one step to having a killer image as the final result. Ansel Adams was a master of this and understood clearly that the raw image was only the first step to showing the world your vision.
Thank to Westcott for putting all of this together and letting the photographers have alot of fun over the past three days shooting gorgeous models on fun sets.
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