Chapter 11
In This Chapter
Tap-clicking with a tablet
Zooming in
Choosing your camera settings
Making a movie with the video camera
Once again, we converge on convergence: The Samsung Galaxy Tab S2 NOOK brings together, under one set of covers, an eReader for books, a small but powerful computer, a video and audio player, some phone functions, and a camera. Let me de-converge that just a bit: Some would argue that it makes compromises at every turn with each of its functions. That’s probably true, but having almost-everything-in-one-place is a beautiful thing.
This chapter looks at the Tab S2 NOOK as a camera. Actually, it has not one, but two cameras — one on the back and the other on the front. They can take pictures or video.
I still laugh when I see people holding a tablet at arm’s length and tapping at the screen to take a picture. It’s a bit awkward and hard to control. But still, it’s a camera and the result is still a digital photograph that can be stored on the tablet, sent to someone else’s digital device, or sent out to a photo lab for a print.
On the plus side, the cameras in this NOOK can immediately display the pictures or videos you make (and with a screen considerably larger than the ones on plain old digital cameras or smartphones). On the downside, although the electronics of the camera in all tablets are quite advanced, the fact is that none of them can match the quality of the large lens on an advanced camera.
In addition to being an author, I am also a professional photographer and I travel the world with a camera that cost several thousand dollars and a zoom lens that cost a few more; my photography kit also weighs about four pounds. And when I need it, I also add in an electronic flash unit that adds a pound and costs more than a few pence.
So back to convergence. When it comes to owning a device that has so many functions and yet costs only a few hundred dollars and fit in a coat pocket and weigh just a few ounces, less just might be more in most situations. In this chapter I show you how to use the tablet’s cameras in automatic mode and give some hints on how to make some advanced adjustments that bridge some of the gap between point-and-shoot and professional equipment.
You can create a gallery of images on the tablet and do some basic editing, and you can share them by email, social network, or upload or transfer your files to a photo printing service and get decent prints. Think small: A 4x6-inch or 5×7-inch print should be sharp and pleasing, and photos taken in bright light should be fine at 8×10 inches. Larger than that, not so much.
In Figure 11-1 you can see the basic camera controls. I go through them briefly here and examine them in more detail later in the chapter.
Start the tour in the upper-left corner and work your way across the top first:
Aspect Ratio and Resolution. You won’t see those words on the screen, but that’s what the two sets of numbers mean. In Figure 11-1 you can see the upper number of 4:3, which means the aspect ratio is the equivalent of an image about 8 inches tall by 6 inches wide in portrait mode (taller than wide), or 6 inches tall by 8 inches wide in landscape mode (wider than tall). The Tab S2 NOOK uses a more book-like ratio than other tablets, many of which use a 16:9 ratio, more like a widescreen television.
The other number is the resolution, or number of pixels (picture elements or individual dots) captured by the sensor. The more pixels the sharper the picture, and also generally the larger it can be displayed or printed.
You can’t independently select resolution or aspect ratio. See Figure 11-2. Here are the combinations available for the rear camera, the one facing away from the screen:
Shoot at lower resolution if you have limited space for storage in the internal memory or an external SDHC card installed in the tablet. I prefer to have a large SDHC card and transfer my images to a desktop computer for editing. As far as aspect ratio, it’s entirely a matter of personal choice.
You can shoot an image at high resolution and later send a smaller file as an email attachment. Visit the Google Play Store for free or paid apps that let you adjust the file size. Save a copy of the picture with a different name; that way you have the high-resolution image and a smaller file to share.
There’s a similar set of adjustments for the front camera, although that one starts out at a much lower resolution of 2.1 megapixels:
Timer. Tap to enable a countdown timer before the picture is taken. You can use this as a self-timer so that you can run around and get into the image or for other special requirements you might have timewise. Your options here are Off, 2-, 5-, or 10-second delay. Or you might experiment with having the tablet take a candid camera shot all by itself.
Be careful about propping your tablet and then running off to get into a photograph. You don’t want the tablet to tumble.
Effect. Tap here to add an effect to a photo. You can preview the effects on screen before selecting one. See Figure 11-3. Special graphical effects include these:
You have to enable an effect before taking the picture.
Move now to the controls at the bottom of the screen, starting at the left corner:
Mode. Jumping over to the bottom of the camera screen, tap here to select from interesting special effects or controls. You can take manual control of the sensor’s sensitivity (ISO), use automatic or manual white balance, and compensate or adjust exposure by as much as two stops. (Each stop is equivalent to half or double the amount of incoming light, depending on whether you choose to under- or overexpose the image.)
Not all modes are available on both the front and rear camera.
After a brief interlude during which the tablet changes its personality, you see the main camera screen, as you saw in Figure 11-1. Tap the shutter to grab a photograph. But before then:
To tell which camera you’re using, look at the screen. If you see whatever’s in front of the tablet, you’re using the rear camera. Some of you, I’m sure, are at this moment halfway down the rabbit hole with Alice in Wonderland. Remember that the front camera is the one on the front, which is the side you use to see the screen; the rear camera is on the back.
If the tiny lens on the back or front of the tablet gets dirty, your pictures are going to appear smudged or otherwise less-than-lovely. Gently clean the lens with a soft cloth or a tissue. If the lens has some sticky gunk on its face, you can slightly moisten the cloth with just a bit of water or a lens-cleaning solution like the ones used for eyeglasses. Don’t press hard and don’t assault the lens with a nail file or jackhammer.
Touch the screen with two fingers and spread them apart to zoom in as much as 4 times; pinch your fingers toward each other to bring the zoom back toward 1 time. You can also touch and hold the slider that appears on the screen to manually adjust the amount of zoom.
The zooming range of the tiny camera system is limited, and it’s electronic rather than optical. The Tab S2 NOOK relies on enlarging a portion of the image captured on the sensor; extreme zooms of distant objects or people will lose a little — or a lot — of quality.
If you’re the sort of person who owns a microwave with a clock that constantly flashes 12:00 as the time of day, or prefers to scrunch your knees up against your chin rather than adjust the seat in your car, you just might be missing some of the finer things in life. We live in a customizable age, and as I’m sure you’re beginning to figure out, your Samsung Galaxy Tab S2 NOOK has a button or slider or control for just about everything.
These sections concentrate on the camera’s shooting modes. Because the rear-facing camera is better and generally serves different needs, some of its modes are different than those on the front camera.
These modes work for either the front or rear camera:
Virtual Shot. Create 3D-like multidirectional views of objects. This is a truly amazing feature, although I’ll be the first to admit that it takes a bit of practice to get it right.
The Virtual Shot, also called Virtual Tour in some descriptions, allows you to create a walk-through of your surroundings, like circling a 3D object. For example, you could tour your home or office, or document all the facets of a statue in a museum.
When you enable the feature within the Camera app, do this:
Adjust the way you hold the tablet so that the pointer’s in the center of the circle.
When the target dot is in the center of the circle, it automatically takes a picture.
Follow the onscreen prompts to move the view to the next spot in your tour.
Hold the tablet as steady as you can and at the same distance above the ground. Each time the target circle appears, this tells you that an image has been captured and stitched into the tour package that you are preparing.
Press the Stop button when you’ve completed the tour.
You can view the results in the Gallery on your tablet.
Tap Mode to see seven available special shooting styles, as shown in Figure 11-5:
ISO. Your camera’s sensor is the replacement for film, and like film it can be more or less sensitive to light. In film-based photography, this used to be called the ISO value. Going for a high sensitivity, or a high ISO, allows you to take pictures in low-light conditions, although the higher the ISO, the greater the possibility of noise (graininess) in your image.
The Galaxy Tab S2 includes manual settings between 100 and 800. In most situations you’ll want to use the Auto setting, but if you’re taking photos in bright sunlight of fast action (beach volleyball, perhaps?) you might want to experiment with a high ISO of 800, which will force very short shutter speeds to freeze the action, or an ISO of 100, which might produce a bit of interesting blur.
White Balance. Light is made up of the visible spectrum, which is another way of saying that the color of light varies based on the time of day or the nature of artificial illumination. The early morning is usually cool or bluish; sunset is usually warm or toward orange.
An indoor incandescent light is much warmer (toward the red or orange) than fluorescent lights or daylight. The tablet computer is pretty good at adjusting for the prevailing light condition, but just as one example you might want to play around with this setting in unusual situations that mix light coming through the window and electrical or candlelight inside a room.
Metering. Your tablet makes the best possible exposure, adjusting the shutter speed (the amount of time the sensor records light) as well as the sensitivity of the sensor itself. But your Galaxy Tab S2 NOOK (and even professional photo gear) can become confused in a situation that has a wide range of light levels in the same scene — for example, a sunny day at the beach with deep shadows under umbrellas and extreme highlights dancing on the surf. If I weren’t so hard at work writing this chapter, I’d be off to the beach right now although there’s a fall-like nip in the air and the seals are still feeding and the sun is near setting, which means the Great White shark population is thinking about dinner. I think I’ll stay at the keyboard.
Figure 11-6 shows your options:
Matrix has nothing whatsoever to do with Keanu Reeves and an artificial reality set up to control human minds. The Matrix setting averages out the entire scene to come up with the best exposure setting.
Matrix metering works well when the range of light is consistent — in other words, scenes where the darkest dark and lightest light aren’t all that far apart.
Panorama. Use the tablet’s brain to stitch together multiple photos into one large panoramic image; this is the same idea as Virtual Shot, which I discuss earlier, except that the result is a single stitched-together image instead of a computer-created simulated video.
Brace yourself and keep the tablet as steady as you can as you slowly move it in an arc from left to right or right to left. You’ll see a blue guide frame on the screen; when you move the tablet so that it fills the guide frame, it takes the next picture in the series. To stop shooting the pano, tap the Stop (square) icon. Panorama mode automatically stops if it can’t recognize elements of the previous picture.
Panoramas work best when there are simple but recognizable backgrounds, like trees or windows. Shooting against empty skies or blank walls may confuse the camera, which may confuse the image, which will confuse you when you try to make sense of what you’ve got.
HDR (Rich Tone). This option gives you an image that records only HDR (high dynamic range) tones. Your camera takes three quick pictures at different settings and then combines them into a single image that includes exposure values you wouldn’t ordinarily be able to record directly. For example, it can deal with both deep shadows and brightly lit objects.
HDR won’t work well if the object is moving fast or if you’re moving the tablet as you take the picture.
These settings only work with the front-facing camera:
If you’re into making minor adjustments, check out the following sections, which I grouped together in what Samsung calls Camera Settings. The options vary depending on which camera you’re using, and sometimes on the mode you’re in.
Tap the Settings (gear) icon and choose Camera to apply the settings you want.
Tap Settings from the Camera screen to customize more details of the camera. See Figure 11-7.
Grid Lines. This tells the camera to display a set of grid lines on the screen as you prepare to take a picture. This is helpful in making sure the horizon is level or that buildings are upright and not tilting (with the possible exception of the Leaning Tower of Pisa). The grid lines are visible only when you’re taking the picture; they aren’t recorded in the file.
Grid lines are, for me, are essential when holding a thin, flat, rectangular tablet camera at arm’s length. It’s considerably more difficult to hold a tablet camera steady than a standard camera held at your eye level and braced against your face.
Location Tags. Your Galaxy Tab S2 NOOK has a built-in GPS receiver, which can tell the device where in the world you are. This function records that information (as latitude and longitude) in the data for the file; you can later use an app on your tablet or a program on a desktop or laptop computer to look up the location of those geographic coordinates and tell you where the picture was taken: Pisa, Italy at 43°43'N, 10°24'E.
The strength and accuracy of GPS signals can vary from place to place. Sometimes they’re weak inside buildings or in areas between buildings where the view of the horizon is blocked. Weather conditions can also affect GPS signals. If you leave Location Tag turned on, the tablet applies the last good signal it had to your photos, updating your position any time it can. See Figure 11-8.
In a perfect world, most of us would say, “Yes, of course. What a nifty special feature.” But some people worry about privacy. What if that picture ended up in the hands of someone else — someone you don’t want to know where you were when you took the picture? If you send your pictures to someone else by email, or especially if you upload them to the Internet, you lose control over whatever information is embedded in the file.
Storage Location. If you install a microSD card in your Samsung Galaxy Tab S2 NOOK (which I recommend), here’s where you can tell the tablet where you want your photos and videos stored.
In general, you should store your photos, videos, music, text files, and the like on the memory card and leave the built-in memory for apps.
Reset Camera Settings. If you’ve adjusted your camera — and I hope you will — you can quickly return all settings to the original — like when first you unboxed your Samsung Galaxy Tab S2 NOOK. This is an all-or-nothing reset, and it only affects camera settings.
The standard setting for the rear camera is high (or normal) resolution. The Samsung Galaxy Tab S2 NOOK uses the MP4 file format for videos. Note, too, that video files can be quite large; a 10-second clip at full resolution occupies about 21 MB of space.
Tablet, camera, action!
To make your own video, do this:
From the main screen, tap the video camera icon on the right side of the screen.
If you most recently used your camera for video, the icon should already display that icon.
To start making a video, tap the Record (red dot) icon.
You can momentarily halt recording by tapping Pause.
While you’re using the video camera, zoom in or out to make distant people or objects appear closer or return to the normal view. Touch two fingers on an image and then spread them apart to zoom in. Bring the two fingers toward each other (pinch) to zoom out.
After you record a video, you can
I discuss the Gallery app in detail in Chapter 12.
You can buy apps that allow you to edit the videos you make on your Galaxy Tab S2 NOOK. Some very basic ones allow simple cuts and edits, while advanced apps let you fade from one scene to another or apply other sophisticated transitions. You can also email or load your video file from the tablet to a desktop or laptop computer and use a full-featured video editor to make your own movie. That includes reordering scenes and merging videos taken at different times or different locations into one movie.