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- Macro Adapter Ring
- An adapter mounted on the front of a lens to allow use of the lens in reverse position.
- Macro Focusing
- Often refers to the capability of certain zoom lenses in which the lens group moves, enabling the lens to focus closer than the normal close-up focusing distance.
- Macro Lens
- A lens capable of extreme close-up photography in which the captured image (on the film or image sensor) is typically from half life-size (1:2 reproduction ratio) to life-size (1:1 reproduction ratio).
- Macro Photography
- Refers to close-up photography, particularly photography that results in the subject appearing close to life-size in the image.
- Manual Exposure
- An exposure for which you set both the shutter speed and lens aperture.
- Matrix Balanced Fill-Flash
- Nikon's through-the-lens (TTL) automatic fill-flash system.
- Matrix Metering
- An advanced metering mode in which the camera's computer sets exposure based on its analysis of the scene's components. Generally regarded as the most accurate metering for most lighting situations, including those with complex lighting.
- Matte Field
- A granular textured surface that disperses light in order to form a clear image. Used in the viewfinder optical system.
- Maximum Aperture
- The maximum diameter of the lens opening is referred to as its maximum aperture or minimum f-number. The minimum f-number is the smallest f-number that can be selected with the lens. Find out more.
- Media
- Material that information is written to and stored on. Digital photography storage media includes CompactFlash cards and CDs.
- Megabyte (mb)
- A measurement of data storage equal to 1,024 kilobytes (kb) or roughly one million bytes. Often referred to a meg or megs.
- Megapixel
- Equal to one million pixels.
- Micro Lens
- For most purposes, a micro lens is another term for a macro lens. Both terms indicate extreme close-up capability; macro and micro lenses produce half life-size (1:2 reproduction ratio) to life-size (1:1 reproduction ratio) images.
- Micro-NIKKOR
- A Nikon lens specially designed for close-up photography. Micro-NIKKORs focus from infinity down to a reproduction ratio of 1:2 or more without accessories.
- Micro Photography
- Refers to taking close-ups in which the resulting image shows the subject ranging from life size (1:1) to 50 times (50:1) magnification.
- Microprism
- A focusing aid located in the focusing screen.
- Mirror Cutoff
- A slight darkening of the edge of the viewfinder image due to the technical limits on the size of the reflex mirror. It may occur when you're using long telephoto lens or a bellows. It is visible in the viewfinder, not in the picture.
- Mirror Lockup
- A feature that allows you to manually raise and lock the reflex mirror in a single-lens reflex camera. Useful for preventing camera shake caused by mirror movement.
- Monopod
- A single-leg support—essentially a pole—used to help stabilize a camera. Sometimes called a unipod.
- Motor Drive
- Powered film advance in film cameras.
- Multi-Sensor Balanced Fill-Flash
- A type of automatic balanced fill-flash that provides flash output control while the camera’s exposure control system determines the background exposure.
- Multiple Exposures
- A technique that involves taking or more images of different subjects or successive pictures of the same subject on the same frame.
- Multiple Flash
- Refers to the use of more than one flash unit to illuminate a subject or scene. It's a technique that enables creative control of lighting effects.