Sunday, February 24, 2008

The value of image stabilization




Probably one of the greatest improvements in camera technology of late is image stabilization. Some camera companies have their system in the camera, some place it in the lens itself. Either way, the concept works really well.

In the past, the rule of thumb was that the lowest shutter speed you could handhold a camera at and not have movement was the inverse of the focal length of the lens you were working with. For example, if you were shooting with a 50 mm lens, you could shoot at 1/50 second. And if you were shooting with a 100 mm lens, you would have to shoot at 1/100 or higher. The problem with that is you might have or go to a faster film (or raise the ISO setting if shooting digitally). The sacrifice you made was increased grain with film, or noise with digital.

Well, with image stabilization a little gyro inside a lens, or mechanism inside the camera figures out how much shake you are introducing into the situation and compensates. The results are impressive, sometimes allowing you to shoot at shutter speeds four stops lower than without image stabilization.

Here are some examples I shot with a Canon 24-105 ƒ4L IS USM lens. If I were shooting this handheld without image stabilization, I would probably use 1/100 or 1/125 as my shutter speed. It’s a bit hard to see online, but when I look at the example at 1/30 there is definitely some softness from camera shake. At 1/15 and 1/8, it is quite noticeable. But with image stabilization turned on, even the exposure at 1/8 sec. is tack sharp. I’ve gained full four stops! Again, the advantage here is that you would not have to raise your ISO to capture an image where the light levels are low, or you need more depth of field. That means less noise in a digital file, or grain if you are shooting film and have to go to a faster one. And that translates into better photographs.













So if you have the option in purchasing cameras or lenses with this technology, I highly recommend looking into it.

Wednesday, February 13, 2008

Analysis of a shoot part II-The shoot day





Having done the scout, I called the actor and asked him to meet me at the location at 7:30 AM, a little bit before the time when I think the light will be the most dramatic. When he arrives, we look at wardrobe, and we select something that feels casual, but elegant. Once he changes, we are in the window for light, and ready to go.

I start the shoot with him standing next to the edge of the building. Giving him a solid physical reference point is an easy way to get him warmed up since he has something he can lean against, and work off of.



The beginning of the session is, in my opinion, the most interesting part of the whole shoot because it’s when you establish the way you will work together. Not unlike meeting someone socially for the first time, it takes a little bit of time to get comfortable with each other, and understand how you will communicate. To get great images, it’s important to create a positive, encouraging environment where the subject is willing to relax, open up to the camera, and be creative.



I’ll generally start with things that don’t require a lot of the person, but are more about light and form. As we progress, I’ll encourage the subject, and compliment them on how they are performing. This invariably makes them more responsive, and as they soften, I’ll ask a bit more of them. “Smile. Make the expression more tender. Grit your teeth and make me feel like you are looking right through me.”



Giving good direction makes your subject feel confident that they are good hands, so even if you are not sure of what you want, make a suggestion with confidence. And if it doesn’t work, go on to the next idea. The key is to keep moving, and create a rhythm that propels you forward. All the while, look for the lighting, expressions and camera angles that will fulfill the concept you started with.



In the end, we worked for about two hours, feeling like we had explored all the possibilities the locations provided, and had a lot of fun along the way.

Saturday, January 26, 2008

Analysis of a shoot part I-Concept and Scout





How you approach a shoot clearly affects the images you get, so I thought it would be good to walk you through how I do a shoot from start to finish. The benefit is the same whether you are shooting a portfolio image for an actor, or intending to take a special picture of a friend or family member.

The first order of business is to come up with a concept for the image (or images) you are going to produce. What do you want to say about the person? Do you want to show their physical attributes? Their sense of humor? Their state of mind? I keep a reference file on my computer with images of paintings, sculptures and photographs that inspire me. The goal is not to copy, but rather to spur the thinking process.

Once you’ve got your idea in mind, think about the lighting and background that will serve those ideas best. Should the location be indoors or outdoors? Would hard or soft lighting be better?

Next, if I’m shooting on location, I’ll do a scout of potential sites. Sometimes you can set the shoot time based on the light at the location, but sometimes it is based on your subjects’ schedule. I take that into account in choosing the time of day to scout. I may not know a location at all, so in that case I will go there whenever it is convenient, and while shooting take good notes with compass headings and reference points. Many cameras have built in microphones, so I’ll shoot a picture, then say something like “Looking northeast from the the landing on the south side of the building, three feet from the left front edge of the first bench.” If the location is a broad landscape without a lot of obvious manmade landmarks, I’ll carry a GPS unit with me and mark the spots I shoot. In that case I would add “Shot at Waypoint 5.” New on the scene are devices that sync GPS positioning to specific images on your media card. I hope to test this technology and report on that soon.

Since I travel a lot, I also make sure I have the correct time set in my camera so I know when the scout picture was shot. All digital cameras will display the time and lens information in the EXIF files, so I can duplicate the look when I come back.

Since I did not know the actor I was going to shoot in advance, I set up a phone call in which we could talk a little bit about who he was, and how he was being positioned for roles. Based on that, I decided to shoot at the Walt Disney Concert Hall, where I could look for simple, graphic backgrounds that would give a sense of place, but make him the hero of the image. I always look for something people can relate to. That is, if I give them a wall or a tree, it gives them something to work with to create line and shape. It also makes it easier for talent to get into the session if they have a prop than if you have them just stand in open space.

Here are a few of the scout images.




Wednesday, January 2, 2008

Looking at the world with open eyes



There are great opportunities for images all around us. So the key is to have a camera with you at all times. Jay Maisel, one of the titans of photography, is legendary for just that. And with ultra small point and shoot cameras, there’s no reason not to be prepared.

Over the holidays, we were fortunate to spend several days in a wonderful cabin high in the Colorado Rockies. One morning, just as a storm was breaking, I walked up to the kitchen window and saw this wonderful vignette.

Once captured, you could play with the image to create a mood. Here's the result of the photo filter adjustment found under Image-Image adjustment-Photo Filter in Photoshop. I used the 82 cooling filter.

Tuesday, December 18, 2007

Photographing Christmas Lights



Photographing Christmas Light displays can be lots of fun. There are lots of creative variations on a theme in play here, so go out and explore your neighborhood. Or, plan ahead for your next year’s Holiday card by shooting your own display. Here’s what you need to know.

Generally, people wait to shoot until it is dark out, but that is too late. The lights may reproduce well in the photograph, but all the other detail in the image will be lost. The goal is to match the correct exposure for the lights with the ambient light at dusk so there is detail in the lights, and detail in the buildings and sky as well. That means that you want to get to your location right around sunset, do your scout, and find the spot you want to shoot from. I’d suggest bringing a tripod, since the exposures can be from 1second to 5 seconds long, depending on the situation, with an ISO of 100. If you don’t have a tripod with you, you could hand hold, but be sure to use a high ISO so you keep your shutter speeds up above 1/60 second. Maybe look for a surface to brace your camera against, like a wall or tree.

Frame the picture so you include some environment. A snow covered lawn creates a wonderful foreground that can reflect color, and the sky can give you a wonderful rich blue to compliment the reds and yellows of the bulbs.

You have a couple of choices for setting white balance. You could go with daylight balance, and let the image take on a warm glow.

Or you could set the camera to tungsten balance, which would make the sky go much bluer. This is a time tested approach to shooting at dusk, most notably practiced by the legendary photographer, Pete Turner. Take a look at his classic image called Road Song to see what I mean.

Either way, start to shoot maybe ten minutes after sunset to see what the ambient light balance is. Look at your histogram to see how you are doing.



As it gets darker, increase the pace of shooting, as the window for when the correct exposure for the lights, and the correct exposure for the ambient light will only be about ten minutes at most.







You’ll know you are done when the sky is black, and the separation between it and the buildings are lost.


Sunday, December 16, 2007

Holiday Performances Part II



O.K. You’ve shot the pre-production pictures as outlined in the last article, your talent is headed backstage, and you are back to your front row seats. Here are the important things to remember. First, double check to make sure your flash is not going to fire. It’s dangerous for the actors, and in most cases the distance from the stage is greater than the range of the flash anyway, so it won’t add to the lighting in any case. Kind of like using your flash at a football game.

Next, if you are shooting with a digital camera, set your ISO to somewhere between 800 and 1600, based on the lighting in the theatre. As always, keep in mind that the higher the ISO, the more noise you will see in the images. I find that in most cases, I can use ISO 1250 as the highest acceptable speed. But that’s my camera. Test yours in advance so you know your limit.

Now set your camera to Shutter Priority (TV), and choose a speed that will not give you camera shake. My recommendation would be 1/125 or 1/160. If you have steady hands you might be able to go to 1/100 or 1/80. Some of the newer cameras have anti-shake mechanisms built in, and that could be a big help too. Testing in advance will create a sense of ease during the show, knowing in advance what the results will be rather than worrying about what could go wrong.

Finally, if you camera has the capability to shoot in RAW format, select that, maybe in combination with a mid-sized jpg. The RAW format is like a digital negative that gives you some additional flexibility to adjust the image beyond what you can do with a jpg. So I always recommend shooting RAW.

As soon as the curtain goes up and the lighting is at production levels, shoot a picture, and check your histogram. As shown in earlier articles, the key is to make sure the shadows and highlights are not clipped. If the camera is doing a good job of metering, great. If histogram is not what it needs to be, use your exposure compensation button to make an overall adjustment. Then shoot another test image and check that histogram to see if the results are better. Continue to adjust until you have what you need.

If you are shooting film, go for a film with an ISO rating in the 800-3200 range. I would suggest a negative fim because it will have more exposure latitude than slide (transparency) film. Set your meter for matrix or evaluative metering, and off you go.

If your favorite actor is a principal player, great. There will be lots of opportunities to get close ups of them alone. But even if that is the case, I like to tell a story, and show some of the other action. So I would suggest shooting pictures that give a sense of the production itself.




Shoot some images that incorporate a group of the actors and shows the set, then move in closer by zooming in or changing to a longer lens. Now you can shoot images of just a couple of the players. And finally, do get those tight in shots that you know you’ll want to put in a frame and put on the wall or mantel.

Once you’ve covered the key elements of the story, and have your beauty shot, experiment! Try shooting with a slower shutter speed, maybe in the 1/8 to 1/30 range, to give a sense of the movement. Blurred images can have romantic, more unique look.

Wednesday, December 12, 2007

Holiday Performances Part I




‘Tis the season for school performances, so here are a few tips for getting the best photographs of the little ones.

First, unless your kids are performing at Carnegie Hall or The Dorothy Chandler Pavilion where sears are reserved, you’ll want to get to the performance hall early to stake out a seat. The reality is that because you are not going to be allowed to use a flash (check you manual as to how to shut it off before you get to the hall), you are limited to shooting hand held. As a result, you need to shoot with as short a focal length lens as you can to minimize camera shake. The rule of thumb here is that you would set the shutter speed to the reciprocal of the lens focal length. So if you are shooting with a 200 millimeter lens, you would shoot at 1/200 of a second. All well and good if you are shooting outside. But shooting with the available light of a performance, even with a high ISO setting, it will be almost impossible to get to a 1/200 shutter speed. So that means you want to shoot with a 100-135mm maximum focal length. And that means you have to be pretty close to the stage to get close in a your favorite actor. So stake out your seat as close to the front as possible but above stage level so you can see the actor’s feet. And try to get as close to the center as you can. Volunteering to shoot another parent’s kids when they have the seat you want could be a great negotiating strategy. Have someone guard the seat for you so you can go to a great opportunity for images--make-up and wardrobe.

Assuming you’ve called in advance (or you are a major donor to the theatre department), you should be able to get access to the staging area. I recommend this highly, because there is a wonderful sense of vitality and spontaneity to this environment, and there are abundant opportunities for candid, journalistic images. Try taking close ups of makeup being applied, wardrobe going on or being adjusted, and the actors strutting their stuff.

Here are a few examples of this kind of image from a performance I shot recently.








In the next entry, I’ll talk more about shooting the actual performance.