Did you ever get back a fresh batch of film, only to be disappointed in finding out that you got back wash-out boring images.
The problem is that you didn't expose your film properly.
Whether we use a digital or film camera, we need to be able to calculate exposure properly. But first, we need to understand how the aperture and the shutter work together. We also need to know how film handles light, and the relationship between film light sensitivity and f/stops.
Lets take a quick look at the main elements.
Aperture and f/stops: the aperture is an opening in the centre of the lens through which light passes. The amount of light which passes through an aperture is indicated by f/stops. The lower the f/stop the more light that passes through the aperture. Opening up one full f/stop doubles the amount of light entering the camera. F/4 admits twice the light of f5.6.
Shutter: the shutter is a mechanical device that controls the length of time that light is allowed to act on the film. Each time you open the shutter by one, we double the light, when we close down the light by one we half the light. Opening the shutter at 1 second allows twice the light as that of a ½ second.
ISO (ASA): stands for International Standards Organisation. The initials are used for film speed which rates light sensitivity. A film with an ISO number 100 is twice as light sensitive as a film with an ISO of 50. The faster the film, the more sensitive it is to light.
Most digital SLR have ISO settings built in to them. If you are taking a low light image with a digital camera use a slow ISO rating of 200 or upwards.
Getting the perfect exposure isn't easy, but there are several different ways of making it easier.
Using a light meter: there are two types of light meters,
1. Reflected-light meter (the same that is built into your camera) works by pointing the meter at your subject.
2. Incident-light meter: instead of pointing the meter at your subject, you stand beside the subject and point the meter at the camera. The light that falls on your subject will also fall on your meter.
The most common way is to use the meter built into your camera. All modern day cameras have a reflected-light meter built in to them. But don't point the camera directly at your subject from 10 meters. This will more than likely underexpose your image. Take the exposure reading up-close, then return to the starting position and take your image.
It doesn't matter which metering system we use, if we don't point them in the right direction our images will return too dark or too bright. The key is to know where to point the meter.
When I take a landscape image I normally take five or six different readings. I take an incident-light reading with my light meter to record the foreground and a reflected-light reading of the sky.
If you are unsure take three or four images at different exposure settings. Don't let a perfect picture moment pass by without recording it flawlessly.
Selasa, 29 Agustus 2017
Sabtu, 12 Agustus 2017
Planning Photo Day Trips
How many of you budding photographers own an expensive SLR camera or the latest digital
camera with tripod and haven't a clue how to get started using them? Raise your hand. Hmmmm. What you need is a whole day out in the field taking beautiful pictures for your album, contests, your scanner and your walls. Here are some ideas for photo opportunities you can count on to produce a high percentage of winners.
The New York skyline or any famous city within travel distance are sure fire people pleasers when photographed in an unusual way. If you have access to a view of the city from a westerly point, try to arrive at the scenic point one hour before sunset. As long as the sun is out, the city buildings will be bathed in a warm light, while the clouds or sky will appear many shades bluer. This color contrast highlights the importance of the buildings and provides a visual interest not available at other time of the day. Place the horizon one third from the bottom of the picture for a 'sweeping sky' look. If possible, scout around for a tree or other over hanging structures for framing and foreground interest. A secondary center of interest in the mid-ground helps the feeling of depth. After the sun series, an hour wait for near dark presents another 'magic' time for an interesting shot. A clear dark sky will photograph royal blue when a short time exposure is used. The warm incandescent lights of the city are further enhanced by the comparison. A slow to medium speed ISO setting requires a shutter speed of two to three minutes at F5.6 or F8.
A visit to a local antique store is a gold mine of beautiful pictures. A kind word to the owner and a promise of a picture or two usually insures their cooperation. Set your camera on a tripod in order to take advantage of the natural light in the room An edge-darkening filter in front of the lens greatly improves the pictures. You can make your own by cutting a four by four inch piece of 2x neutral density plastic filter material. Cut a one inch by three-quarter inch oval hole in the middle. When placed in front of the lens, a natural fad-out is produced on the edges of the picture. Look for interesting subjects to photograph like a sleeping doll, light coming through colored bottles, antique items on a dresser top, an old rocking chair with the old owner int, or an antique hobby horse. Try to stay away from straight lines and very dark objects. Window light is best, so you may find it necessary to relocate the item of interest nearer to a window. The owner surely knows many interesting stories about their antiques. Altogether a fun day!
Another fun spot laden with picture possibilities is the local arboretum or formal gardens. Depending on the time of year, spectacular photos can be made from the many unusual plant life. You can photograph tiny blooms from one inch away, discover patterns in strange leaves or capture the mood of a forest with a creative filter on your lens.
At certain times of the year, you can find a lake or local body of water blanketed by a transparent layer of fog. I know it's hard to get up before dawn, but for this field trip it will be necessary. Bring along waders if you have them or rent a row boat or canoe. Unless building are particularly photogenic, don't use them in your composition. A horizon line one third from the top will place more importance on the water and fog. A super saturated film or setting on your digital camera will enhance the color of the scene. Strong foreground interest and small apertures with long exposures are important features of the day. A small stone thrown into the still water simulates a hungry fish and a few handy large leaves floating past can help capture interest.
If there are no overhanging branches at the chosen location, a cut branch held over the lens a few feet away can substitute. The best photographs in the scenario will be fore the sun comes up. If you can, include the rising sun in you composition for a different look. For variety, shoot a few super close-ups of flowers, insects or leaves. Since the sun will give you a false exposure, a meter reading of the darkest portion of the scene can be set manually for a proper exposure. Work fast sine one hour is the most time you can expect to have Bring along a fishing pole and enjoy the rest of the day. Happy shooting.
I used to photograph only people. Now I photograph everything.
camera with tripod and haven't a clue how to get started using them? Raise your hand. Hmmmm. What you need is a whole day out in the field taking beautiful pictures for your album, contests, your scanner and your walls. Here are some ideas for photo opportunities you can count on to produce a high percentage of winners.
The New York skyline or any famous city within travel distance are sure fire people pleasers when photographed in an unusual way. If you have access to a view of the city from a westerly point, try to arrive at the scenic point one hour before sunset. As long as the sun is out, the city buildings will be bathed in a warm light, while the clouds or sky will appear many shades bluer. This color contrast highlights the importance of the buildings and provides a visual interest not available at other time of the day. Place the horizon one third from the bottom of the picture for a 'sweeping sky' look. If possible, scout around for a tree or other over hanging structures for framing and foreground interest. A secondary center of interest in the mid-ground helps the feeling of depth. After the sun series, an hour wait for near dark presents another 'magic' time for an interesting shot. A clear dark sky will photograph royal blue when a short time exposure is used. The warm incandescent lights of the city are further enhanced by the comparison. A slow to medium speed ISO setting requires a shutter speed of two to three minutes at F5.6 or F8.
A visit to a local antique store is a gold mine of beautiful pictures. A kind word to the owner and a promise of a picture or two usually insures their cooperation. Set your camera on a tripod in order to take advantage of the natural light in the room An edge-darkening filter in front of the lens greatly improves the pictures. You can make your own by cutting a four by four inch piece of 2x neutral density plastic filter material. Cut a one inch by three-quarter inch oval hole in the middle. When placed in front of the lens, a natural fad-out is produced on the edges of the picture. Look for interesting subjects to photograph like a sleeping doll, light coming through colored bottles, antique items on a dresser top, an old rocking chair with the old owner int, or an antique hobby horse. Try to stay away from straight lines and very dark objects. Window light is best, so you may find it necessary to relocate the item of interest nearer to a window. The owner surely knows many interesting stories about their antiques. Altogether a fun day!
Another fun spot laden with picture possibilities is the local arboretum or formal gardens. Depending on the time of year, spectacular photos can be made from the many unusual plant life. You can photograph tiny blooms from one inch away, discover patterns in strange leaves or capture the mood of a forest with a creative filter on your lens.
At certain times of the year, you can find a lake or local body of water blanketed by a transparent layer of fog. I know it's hard to get up before dawn, but for this field trip it will be necessary. Bring along waders if you have them or rent a row boat or canoe. Unless building are particularly photogenic, don't use them in your composition. A horizon line one third from the top will place more importance on the water and fog. A super saturated film or setting on your digital camera will enhance the color of the scene. Strong foreground interest and small apertures with long exposures are important features of the day. A small stone thrown into the still water simulates a hungry fish and a few handy large leaves floating past can help capture interest.
If there are no overhanging branches at the chosen location, a cut branch held over the lens a few feet away can substitute. The best photographs in the scenario will be fore the sun comes up. If you can, include the rising sun in you composition for a different look. For variety, shoot a few super close-ups of flowers, insects or leaves. Since the sun will give you a false exposure, a meter reading of the darkest portion of the scene can be set manually for a proper exposure. Work fast sine one hour is the most time you can expect to have Bring along a fishing pole and enjoy the rest of the day. Happy shooting.
I used to photograph only people. Now I photograph everything.
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