1. What is the difference between an SLR, DSLR, DSLM, and MILC camera?
An SLR (Single Lens Reflex) camera uses a mirror and prism system to allow the photographer to see through the lens. A DSLR (Digital Single Lens Reflex) camera is a digital version of an SLR, using a digital sensor to capture the image. A DSLM (Digital Single Lens Mirrorless) camera, also known as a MILC (Mirrorless Interchangeable Lens Camera), does not have a mirror and uses an electronic viewfinder (EVF) to display the image.
What is exposure and how is it controlled in photography?
the amount of light that reaches the camera sensor, which determines the brightness of an image. It is controlled by the aperture, shutter speed, and ISO.
Describe what f-stops are available for your camera lens. Describe the relationship between f-stops and depth of field (DOF)
is the range of distance in a photo that appears sharp or in focus. It affects the amount of background blur and can isolate the subject or show more context.
Describe what “ISO” settings are available on your camera is the most sensitive. And what ISO setting is recommended for “Examination Quality” photographs?
The most sensitive ISO settings are 1600-3200 and an examination quality image has an ISO of 100.
What is the reciprocity between F-stops, shutter speeds, and ISO?
refers to the relationship between the three exposure variables. Changing one variable by one stop can be compensated by changing another variable by one stop in the opposite direction to maintain the same exposure.
What is considered a “normal” lens and why?
a lens that has a focal length approximately equal to the diagonal of the image sensor. It is considered “normal” because it provides a perspective similar to human vision.
What is focal length and how does it affect the perspective of an image?
the distance between the lens and the image sensor when the lens is focused at infinity. It affects the magnification and angle of view of the image, with shorter focal lengths providing a wider view and longer focal lengths providing a narrower view.
How does focal length affect depth of field?
Longer focal lengths create a shallower depth of field, meaning less of the image will be in focus. Shorter focal lengths create a deeper depth of field, meaning more of the image will be in focus.
What is an 18% gray card and how is it used in photography?
card that reflects 18% of the light that falls on it, which is considered a middle gray tone. It is used to set white balance and exposure, ensuring accurate color and tones in the image.
How does shutter speed affect the capture of motion in a photograph?
Shutter speed controls how long the sensor is exposed to light. A faster shutter speed freezes motion, while a slower shutter speed can create blur or motion trails.
What are stops of light and how do they relate to exposure?
units of measurement that describe the doubling or halving of the amount of light. They are used to adjust exposure, with one stop doubling or halving the amount of light reaching the sensor.
What are the main camera controls and how do they affect the image?
aperture, shutter speed, ISO, white balance, focus mode, and shooting mode. They affect the exposure, color, focus, and overall look of the image.
How should a camera be held properly and why are tripods important?
A camera should be held with both hands, one supporting the body and the other gripping the lens. Tripods are important for stabilizing the camera and preventing camera shake, especially in low light or when using slow shutter speeds.
What are telephoto and zoom lenses and how do they affect images?
have a long focal length, which magnifies the subject and compresses the perspective. Zoom lenses have a variable focal length, allowing the photographer to change the magnification without changing lenses.
What is F-stop and how does it relate to aperture and depth of field?
a number that indicates the size of the aperture, which is the opening in the lens that controls the amount of light entering the camera. A lower F-stop number
means a wider aperture and shallower depth of field, while a higher F-stop number means a narrower aperture and deeper depth of field.
What are the inverse square laws and how do they apply to photography?
that the intensity of light is inversely proportional to the square of the distance from the source. In photography, this means that the amount of light reaching the sensor decreases rapidly as the distance from the light source increases.
What are ISO numbers and how do they affect image quality?
indicate the sensitivity of the camera sensor to light. Higher ISO numbers allow for shooting in low light but can introduce noise or grain into the image.
How should a camera be cared for to ensure its longevity and optimal performance?
keeping the camera clean and dry, storing it properly, and handling it with care. Regular maintenance, such as cleaning the sensor and checking the lens, can also help ensure optimal performance.
What are camera filters and how can they be used creatively?
are glass or plastic attachments that can be placed in front of the lens to alter the light entering the camera. They can be used to enhance colors, reduce reflections, protect the lens, or create special effects.
What is fill flash and how can it be used to improve photographs?
a technique where the flash is used to illuminate shadows in a scene, even in daylight. It can be used to balance the exposure between the subject and the background, or to add a catchlight to the subject's eyes.
What does it mean to “fill the frame” in photography and why is it important?
composing the shot so that the subject takes up most of the space in the image. This can help to emphasize the subject and create a more impactful image.
What are overall, midrange, and closeup photos and how do they differ?
Overall photos capture the entire scene, midrange photos focus on a specific area or subject within the scene, and closeup photos show a detailed view of a small part of the scene. They differ in their perspective and the amount of detail they show.
hat is the difference between vision and perception in the context of photography?
the physiological process of seeing, while perception is the way we interpret what we see. In photography, it is important to be aware of how our perception can influence the way we compose and capture images.
What is the vanishing point in photography and how does it affect perspective?
the point in an image where parallel lines appear to converge. It can be used to create a sense of depth and perspective in the image.
What are Kodak’s 10 Tips for taking better photos?
use fill flash, get close to the subject, take vertical shots, lock the focus, watch the light, avoid camera shake, use a plain background, move it from the middle, know your flash's range, and watch the background.
What are examination quality photos and what are they used for?
high-quality images that are used for forensic analysis or evidence documentation. They must be clear, accurate, and free of distortion.
What factors affect the amount of light reaching the camera sensor?
aperture, shutter speed, ISO, lens type, filters, and the intensity of the light source.
What are scales and their guidelines in photography?
used in photography to provide a reference for size and distance in the image. Guidelines for using scales include ensuring the scale is in focus, placed on the same plane as the subject, and clearly visible in the image.
What are the different digital imaging types?
Different digital imaging types include JPEG, TIFF, RAW, and PNG. They differ in their compression methods and file sizes.
what are some examples of comparison/analysis photos?
can include images of fingerprints, tool marks, or other evidence compared side-by-side for analysis.
What is the difference between lossless and lossy image compression?
Lossless compression reduces file size without losing any image data, while lossy compression discards some image data to achieve greater compression.
What are pixels-per-inch (ppi) and how is it determined?
a measure of image resolution, indicating the number of pixels in one inch of the image. It is determined by dividing the number of pixels in the image by the dimensions of the image in inches.
What is the mosaic pattern on a camera sensor?
refers to the arrangement of color filters on the sensor. The most common pattern is the Bayer pattern, which uses a grid of red, green, and blue filters.
What is the Color Filter Array (CFA) and how does it work?
is a grid of color filters that sits on top of the camera sensor. It allows the sensor to capture color information by filtering the light that reaches each pixel.
What is interpolation and how does it affect image quality?
a process used to estimate the color of missing pixels in an image. It is used to create a full-color image from the data captured by the CFA. Interpolation can affect image quality by introducing artifacts or reducing sharpness.
How do you determine the correct exposure for a given scene?
The correct exposure depends on the desired creative effect and the lighting conditions. It can be determined by using the camera's light meter, or by using manual settings and adjusting the exposure variables until the desired result is achieved.
What is the impact of using a high ISO setting on image quality?
using a high ISO setting can increase noise or grain in the image, reducing its overall quality. However, it allows for shooting in low light conditions without using a flash or slow shutter speed.
How can you achieve a shallow depth of field in your photographs?
can be achieved by using a wide aperture (low F-stop number), a longer focal length, and/or getting closer to the subject.
What is the rule of thirds and how can it be used to compose a photograph?
a compositional guideline that suggests placing the subject off-center, along the lines or at the intersections of a grid that divides the image into thirds. This can create a more balanced and visually interesting composition.
How can you avoid camera shake when taking photos in low light conditions?
by using a tripod, a faster shutter speed, image stabilization, or by bracing the camera against a stable surface.
What are the different types of camera lenses and what are they best suited for?
Different types of camera lenses include wide-angle, telephoto, macro, zoom, and prime lenses. Wide-angle lenses are best for landscapes and architecture, telephoto lenses are best for wildlife and sports, macro lenses are best for close-up photography, zoom lenses offer versatility, and prime lenses offer high image quality.
What are the basic operating modes of the” typical” modern digital camera?
Program, Aperture Priority, Shutter (time) Priority, and Manual 43.
How can you use natural light to your advantage in photography?
used to create different moods and effects in photography. Soft, diffused light is ideal for portraits, while harsh, direct light can create dramatic shadows and contrast. The golden hour, which is the hour after sunrise and the hour before sunset, is known for its warm, flattering light.
What are some common mistakes to avoid when taking photographs?
include not paying attention to the background, not using proper focus, not using the correct exposure, not holding the camera steady, and not composing the shot carefully.
How can you edit your photos to improve their overall quality?
used to adjust exposure, color, contrast, sharpness, and other aspects of the image. It can also be used to remove unwanted elements, crop the image, and apply creative effects.
What are some ethical considerations to keep in mind when taking photographs?
include respecting privacy, obtaining permission, when necessary, not manipulating images in a way that misrepresents reality, and being mindful of the impact of your photographs on others.
how can you protect your camera equipment from damage?
protected by using camera bags, lens caps, and rain covers. It is also important to avoid exposing the equipment to extreme temperatures, humidity, and dust.
What are some resources for learning more about photography?
Resources for learning more about photography include books, magazines, websites, online courses, and workshops.
An aperture of f/8 allows twice as much light as f/16 to enter the camera
False