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30 lessons found for "aperture"
- Exposure and meteringAperture: F-Numbers, Light and Depth of Field What is aperture? Aperture is the adjustable opening inside a lens that light passes through on its way to the sensor. It is made by a ring of thin metal blades, called the diaphra…
- Exposure and meteringExposure Triangle: Balancing Aperture, Shutter Speed and ISO …osure triangle? The exposure triangle is a simple way of showing that aperture, shutter speed and ISO all affect how bright a photo is, and that changing one means you usually need…
- Exposure and meteringExposure Modes: Auto, Program, Aperture Priority, Shutter Priority and Manual …an exposure mode? The four main modes are often called PASM: Program, Aperture Priority, Shutter Priority and Manual. Brands use slightly different letters for the same thing. What…
- Exposure and meteringUnderstanding Exposure and the Three Exposure Controls …Here is what each one does to brightness: The three exposure controls Aperture and shutter speed decide how much light actually reaches the sensor. ISO works a little differently:…
- Lenses and filtersHow Camera Lenses Work …chromatic aberration and optical limitations. The parts of a lens The aperture blades also affect how blurred highlights look. Lenses with more blades, especially rounded ones, usu…
- Lenses and filtersPrime and Zoom Lenses …such as 85mm f/1.2 lenses, are large and heavy. Constant and variable aperture zooms Zoom lenses come in two kinds, and the lens name tells you which: Constant and variable apertur…
- Macro and technicalDepth of Field at High Magnification …he rules simplify: depth of field depends mainly on magnification and aperture. At the same magnification, focal length has very little effect on depth of field. A 60mm and a 180mm…
- Sensors and RAWCrop Factor and Equivalent Field of View …re background blur across formats, photographers use an equivalent aperture: multiply the f-number by the crop factor. Crop factor and depth of field Equivalent aperture describes…
- Macro and technicalMagnification and Working Distance …sensor, spreading the same light over a larger image. The effective aperture becomes smaller than the number set on the lens. A common approximation is: Why light is lost at high m…
- Exposure and meteringReal-World Exposure Decision Making …gh Sometimes, after setting the shutter speed you need and the widest aperture you have, the ISO would have to go higher than you accept. Then the answer is not a setting. It is to…
- Lenses and filtersNeutral-Density Filters …removing light, they let you choose a slower shutter speed or a wider aperture without overexposing. Reading ND filter strengths ND filters are labelled in three different ways, wh…
- Long exposure and nightNeutral-Density Use in Daylight Why daylight needs ND filters At base ISO and a small aperture, bright sun may still force a fast shutter speed. ND filters remove a chosen number of stops of light so you can use…
- Photography foundationsHow a Digital Camera Creates a Photograph …happens in a fraction of a second: From light to photo: step by step Aperture and the shutter are two of the most important controls in photography. Here you only need to know wha…
- Photography foundationsViewfinder, Live View, Playback and Camera Information Displays …e ones in this table. Reading the shooting information Shutter speed, aperture and ISO will be explained fully in understanding exposure. For now, just learn where they appear on y…
- Photography foundationsPhotography and Videography: Still and Moving Images …ion of light shape every frame, as in understanding light. Exposure: aperture, shutter speed and ISO still control brightness, as in understanding exposure and the three exposure c…
- Photography foundationsVideo Mode and Basic Video Settings …o Because the shutter speed is fixed, you control brightness with the aperture, the ISO, or a neutral-density (ND) filter, which works like sunglasses for your lens. ND filters are…
- Exposure and meteringShutter Speed: Exposure, Timing, Freezing and Blur …ds, lean on something or use a tripod. Balance the brightness. Adjust aperture and ISO to match. Shutter Priority mode (S or Tv) makes this easy, as you will see in exposure modes.…
- Exposure and meteringISO: Sensitivity, Noise and Image Quality …ht whatever the ISO setting is. The amount of light is decided by the aperture and the shutter speed. What ISO really does in a digital camera What ISO changes is how much the came…
- Exposure and meteringExposure Compensation and Practical Brightness Control …orks in each mode This means your side effects can change too. In Aperture Priority, adding a lot of brightness in dim light can make the shutter speed slow enough to blur. Always…
- Exposure and meteringHDR and Exposure Bracketing …show detail in the shadows. Auto exposure bracketing (AEB) Bracket in Aperture Priority or Manual so the camera changes the shutter speed between frames and keeps the aperture the…
- Exposure and meteringExposure for Video: Shutter Angle and the 180-Degree Rule …ter is fixed Outdoors in bright sun, a 1/50 s shutter with a wide aperture is far too bright. This is why video creators use ND filters much more often than photographers. A variab…
- Focus and depth of fieldUnderstanding Focus and What Makes an Image Appear Sharp …ne of acceptable sharpness is called depth of field, which you met in aperture and will study fully in focus distance, depth of field and subject separation. The plane of focus Bec…
- Focus and depth of fieldManual Focus and Focus Assistance …o confirm. How to focus manually, step by step Focus at your shooting aperture or wider. Some cameras show the view at the aperture you set; at very small apertures the screen can…
- Focus and depth of fieldFocus Distance, Depth of Field and Subject Separation …stance: the most underrated factor Beginners usually think only about aperture. But distance has a very strong effect. When you focus very close, depth of field becomes extremely t…
- Focus and depth of fieldShallow and Deep Depth of Field …low depth of field But shallow depth of field has risks. At very wide apertures and close distances, the sharp zone may be thinner than a face. One eye can be sharp while the other…
- Focus and depth of fieldFocus Problems, Missed Focus and Troubleshooting …ailed target at an angle (such as a ruler on a table), at your widest aperture, and compare the result with manual focus using magnification. Most "bad lens" complaints turn out to…
- Focus and depth of fieldSharpness from Capture: Stability, Shutter Speed and Technique …e bridges with traffic. Watch the shutter speed number: especially in Aperture Priority indoors, where the camera may choose a slow speed. Use Auto ISO with a minimum shutter speed…
- Focus and depth of fieldFocus for Video: Focus Pulling and Video Autofocus …t and scenes where autofocus may jump to the wrong subject. Close the aperture a little when focus is difficult, to give yourself a deeper sharp zone. Check focus with magnificatio…
- Lenses and filtersShort Telephoto, Telephoto and Super-Telephoto Lenses …mon professional lenses because it combines reach with a bright aperture for indoor events. Super-telephoto: reaching far Lenses of 400mm and more are used when you physically cann…
- Lenses and filtersMacro, Fisheye and Specialty Lenses …make a camera almost pocketable. Very fast primes: lenses with apertures like f/0.95 or f/1.2 for extremely shallow depth of field and very low light. Creative lenses: lenses desig…