Photography Tips
Outdoor Photography
I perceive photography as a personal view, complemented by technique. You should be
observant, recognize a special light, and capture sensations.
It is difficult to think of all aspects when you shoot outdoor, where the environment is
unpredictable. Concentration and practice yield improvement.
Shoot many pictures; select only the best to show others.
Composition: Plan the image equilibrium, the location of all objects
in relation to the background, the colors, and filling the frame.
- The optimal location of the main object is in the horizontal and/or vertical third.
Still, sometimes symmetry has a strong impact.
- The background should complement the composition. Try different angles to change the
background.
- Leave space in front of the living or moving object.
- Shoot flowers and kids from their own height.
- Do not crop organs such as a finger, a hand, an ear or a leg. Consider carefully how to
trim close-ups.
- Include lots of dramatic sky, rather than foreground.
- Place people in landscape photographs. I prefer to include people who wear bright colors.
People add life, point of interest, human sense of scale, and color.
- Frame your object, e.g. shooting through a window, or adding a bush or a branch in the
foreground.
- Avoid excessive unfocused foreground.
- The shadow and the reflection are part of the picture. Consider their angle, and try
not to crop them.
Lighting: Photography is all about light, and outdoors the light is ever-changing.
When you see a special light – rush to capture the fleeting moment. Later a cloud
will cover the light-source, or the sun will change its angle.
- Afternoon light is warm and dramatic. During twilight the sky is deep blue. Dawn light
is also soft, if you can wake up.
- Direct light is hard, whether it comes from the sun during the day, or from a flash.
The direct light washes-out the colors, and the image seems flat. Reflected light
is defused, soft, and yields better results. Turn the flash to the ceiling or at a rock,
so the reflected light will illuminate the subject.
- Partly cloudy makes a great photograph also during the day.
- Pent light which is reflected several times inside a gorge creates impressive effects.
- Great effect is obtained when you shoot flowers against the sun; the sun rays penetrate
the flower petals, and you aim down.
- When you do not have time to take a good measure, it is better to overexpose a bit than
to underexpose. In post processing it is easy to darken the picture, but when
brightening, you lose the deep colors.
Portraits: I ask people for their permission to take their photograph in advance. I respect
beliefs, and request to invade their privacy. Friendliness rewards with warm reaction which is reflected
in the picture. A smile adds sensation to a photograph.
- Focus on the eyes (same when you photograph animals).
- When the faces are dark or shaded, use the flash also in daylight. The flash
should be set to minimum light, and use a diffuser.
- When shooting inside, make sure the light or its reflection is on the face of your
portrait. Do not shoot when your object is with his back to a door or a window.
- Natural soft light flatters faces more than a bright sun, a flash or other artificial light source.
- Picture from the face height, in an equivalent to 70mm lens, and ask your object
to lower his chin a little rather than lift it.
Stability: Make sure your hands are stable and supported.
- Use a crook of a tree, a rock, or your knees, as a base for your camera or your hands.
- Take a big breath before shooting, hold your breath, squeeze gently the button,
and wait with your breath until after taking the picture.
- Use the self timer to avoid vibration while squeezing the button.
Setup: Outdoors you do not have the time to set up the camera. Prepare presets
in advance.
- Set to the lowest ISO (usually ISO 50-100), as it means also low noise images.
- Set the white balance to cloudy, to increase the reds and yellows resulting in richer,
warmer pictures.
- Set to the highest resolution (you can resize in post processing).
- Set to the highest image quality (you can decrease quality in post processing).
- Prepare a set for low light (sunrise and sunset twilights).
- Prepare a set for low speed, to capture a flowing movement (e.g. a flow of a river).
Outdoor Photography Equipment
Consider the equipment you take according to the travel conditions.
- A small tripod, as sometimes using a large tripod is prohibited, e.g. inside mosques,
churches and caves.
- Power
- Take an extra battery.
- Use new batteries, as old batteries are emptied quickly in extreme cold
conditions.
- An external instant power battery charges the camera battery for
ten hours (e.g.
http://www.instant-power.com/).
- A DC to AC Power Inverter using a car's cigarette lighter adapter.
- A DC to AC Power Inverter from a solar generator.
- When electricity is not available, charge your battery each time you have
electricity (though it is not recommended in normal use).
- To save battery, use the viewfinder and not the LCD, do not delete pictures
while trekking, turn the camera on only when required, and turn it off
immediately after shooting.
- Storage capacity
- Pack extra memory cards (old cards are slow in writing time).
- Pack a digital album (e.g. Nixvue Digital Album).
- Upload photos to a web album (e.g. http://picasaweb.google.com/).
- Take a cleaning gel or wet towels to clean your hands before dealing with the camera.
- Attach a small led flashlight to the camera, to see the camera in the dark.
- Pack the camera's user's manual, to check how to use special features
(it is better to learn about night framing before it is getting dark).
Photography Under Extreme Cold Conditions
- The main problem is light measurement when the frame contains much bright snow
and ice. Overexpose by using a spot metering from the darker parts, and check
the results immediately. When photographing a close object in a bright background,
consider adding a fill in flash.
- Use manual focus in snow and fog conditions, when the camera fails to focus
automatically.
- Clean the lens and the display using dry, soft cloth, as breath will turn into ice.
- Pack some extra new batteries, as the batteries lose their potential quickly in extreme
cold conditions (in particular non-fresh ones).
- Pack extra (at least two) memory cards, designed to perform in extreme temperatures,
with fast write speed (e.g.
Sandisk Extreme Compact Flash Card, high performance from -25°C to 85°C).
Redundancy is the name of the game.
- Make sure the camera does not get too cold, and don't keep it exposed unnecessarily.
Follow the manufacturers' instructions. Keep extra batteries close to your body.
- Put the camera inside a sealed bag when you enter a warm room. This way the bag's
exterior will condensate the wetness, not the camera. If the camera becomes
misty, remove the battery and memory card, leave their compartments open, and
allow them to dry out.
- Use a sealed camera bag, to keep the camera dry when it rains, snows, or when you slip
in the snow.
- Use Silica Gel bags to absorb wetness inside the sealed bag and the camera bag.
Dry the Silica Gel bags with heat (e.g. in a microwave).
-
Photography Under Arctic Conditions article by Kodak.
Digital Camera Specifications
I use a compact prosumer camera (
Sony DSC-F828),
and the following specifications are important to me:
- Total weight of 1Kg.
- Live LCD shooting view.
- A tilt-able LCD (to shoot unusual angles, especially
for flowers and small kids, and when the sun is bright).
- A large LCD with high resolution (2.7" with resolution of 230,000px).
- Spot light metering.
- The equivalent of 24mm wide zoom lens.
- Flexible spot AF.
- Image ratio 3:4.
- Macro Focus mode (using the same lens).
- Ability to display a flexible grid line, horizontal and vertical (to avoid tilted horizons,
and to maintain the same horizon level in panorama photography).
Cameras that have all of the above, also provide short capturing time (or little Shutter Lag, means short
delay between pressing the shutter button and the camera recording the picture),
large CCD, and high resolution.
My next camera is going to be the
Sony Alpha 350 DSLR. This is the only camera (as for April 2008) which
complies with the first six specifications above (one has to compromise). The
drawback of a DSLR camera is the accumulation of dust on the sensor, particularly
when used outdoors (due to the mechanical lens lock which is not completely sealed).
I intend to mount the
Sony 16-105mm (24-160mm in 35mm equivalent focal length), and leave it in
place while I am on an "off the beaten track" adventure (far from a cleaning lab).
Image Processing
In my perception, post image processing includes operations I could do before each capture,
or when printing the image. E.g. when you shoot outdoor it is impractical to calibrate the white balance
before each shot; instead of using contrast paper, we can change the contrast when we post process
the image; it is impractical to carry and replace filters in the field, etc.
I make minute changes only. I cannot turn a bad picture into a good one. I can process
a great picture and make it excellent.
First, setup your working environment
- Clean your screen from stains.
- Calibrate your screen (color temperature, contrast, brightness).
- If you are using a laptop, make sure the screen is in the appropriate angle.
- Re-saving and re-sizing can degrade the quality of a JPEG image. Start processing with the cleanest image possible.
- Make a backup copy of the original image you want to process.
In the following image processing tips I use Photoshop terminology. Comparable photo handling
packages might use different terms to describe similar features.
I apply one or more of the following post processing techniques, in this sequence.
Rotate: if any arbitrary rotation is not correct, cancel it and try again. Repeated
arbitrary rotation loses image quality.
Crop: consider ratio.
Auto level adjustment, sometimes called "auto-exposure", "auto-levels",
or "auto-fix" feature.
White balance
- Use Adjustment Layer>Levels, and white color sampler.
- Add yellow by changing the color channel from RGB to blue. Select Curves, click
once in the center of the line and move it slightly down and to the right. By applying
an "S" shaped curve to the blue channel, you can add yellow to the darker ground
whilst simultaneously adding blue to the lighter sky thus enhancing it.
Brightening or darkening
- Severe adjustment
- Layer>New Adjustment Layer>Levels…, name the new layer and click OK.
- In the Layers window change the interlacing of the new layer as required:
when the picture is dark – change in the combo below the word Layers from
Normal to Screen; when the picture is bright – change to Multiply.
- Moderate adjustments
- In Curves… try Auto. Drag the centre of the curve up or down if the result is too
light or dark.
- In Levels... if the histogram does not fill the line between the black and white
triangles, move them in.
- In Levels... alter the centre triangle, if the picture is too light or too dark.
Contrast adjustment
- To increase contrast: select Curves, and click twice on the line to make two control
points, one near the top and one near the bottom. Move the top one up slightly,
and the bottom one down slightly, to make a very gentle "S" shaped curve.
- Another way to increase contrast: Filter>Sharpen>Unsharp Mask, when the Radius is
higher than the Amount. You should perform this action last, even after resizing.
- To decrease contrast, such as in photos taken with a flash, use Shadow/highlight
adjustment.
Image sizing and compression: When sending an image via email or loading to a website,
in addition to resizing, compression to medium JPEG quality of 2/3 is good enough in my opinion
(my recent pictures were resized in Photoshop, medium image quality level 6 in progressive format;
earlier pictures were resized with ACDSee, JPEG compression quality 75 with Huffman optimization).
Image sizing for printing: Crop your picture to adjust the ratio to the targeted
print (2:3 or 3:4); otherwise the lab will cut your frame as they wish.
Sharpening should be the very last step in the post-processing sequence.
All digital images benefit from sharpening. The Bayer color interpolation process and the
anti-aliasing filters used in single CCD cameras guarantee that.
- High Pass filter
- Duplicate the photograph layer: Layer>Duplicate.
- Set a filter on the new layer: Filter>Other>High Pass.
- In the filter window, set 1-3 pixels radius, in fraction (e.g. 2.9, 1.2). The radius
is correct when the white halo is minimized, almost unseen.
- Cancel remaining color: Image>Adjustments>Desaturate.
- Change the interlacing of the new layer from Normal to Overlay. For softer
effect use Soft Light, and for stronger effect use Hard Light
- Unsharp Mask
- Filter>Sharpen>Unsharp Mask, when the Radius is lower than the Amount.
Recommended websites:
Slide Scanning
I used the
Nikon Super Coolscan 4000 scanner for digitizing slides for the
Australia, East Coast and
New Zealand galleries.
- Performing the scan
- Scanning the film is preferable to scanning mounted slides.
- Lab prices vary, according to the image-processing options chosen.
- File structure: Preferably save as a Raw file; Tiff is second best, and Bitmap is the third.
JPEG is the least desirable option.
- Image processing
- Process as required: brighten, correct the color balance and contrast.
- Enhance color saturation: Image>Adjustments>Hue/Saturation.
- Sharpen as last operation, after resizing.