Af

RO: Af asist illuminator EN: Af lock (af-l)

Fotografie digitala si IT

A mode to lock the focus to a predetermined point. Useful when the subject is moving fast because you can take the photo as it reaches a certain point or when other influences could affect the focusing such as shooting through glass or in crowded locations.
Ephotozine

81%

Accuracy

Af

Auto Focus. All digicams and most modern SLR lenses have this function now. The lens automatically focuses on the subject as quick as the eye. The only difference is that with an SLR you can normally select manual focus if necessary.

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96%

Accuracy

Af

Short for Automatic Focus, the camera and lens work together to select the correct focus.

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89%

Accuracy

Af

Abbreviation for Autofocus .

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98%

Accuracy

Af - autofocus

Sistem automat care aduce planul de claritate al obiectivului pe subiectul dorit; exista sisteme pasive si active. Mai multe detalii aceasta pagina. .

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81%

Accuracy

Af - autofocus

Sistem care pune claritatea obiectivului pe subiectul dorit; exista sisteme pasive si active.

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91%

Accuracy

Af area modes

Nikon s three AF Area Modes—Single Point AF, Dynamic Area AF and Auto Area AF—are designed to handle any shooting situation. With good light control and a static subject, Single Point AF ensures that the most important element in the composition, such as the eyes in a portrait, will be sharply focused. With Dynamic Area AF, you can select from several focusing options: 9-, 21- or all 51-point AF. Select a Single AF point and the areas surrounding it serve as backup—a significant advantage when shooting moving subjects. Select the 9-point option when you want to focus on erratically moving subjects with greater accuracy. When dealing with insufficient contrast for fast focus detection, choosing 21 or 51 points makes detection easier. The 51-point option also allows for 3D Focus Tracking, which uses color information from the RGB metering sensor to automatically follow moving subjects across the AF points. Auto Area AF uses color information and special face recognition algorithms to automatically focus on an individual s face, which is extremely helpful when there s simply no time to select a focus point, or when using Live View in hand-held mode at high or low angles.

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92%

Accuracy

Af asist illuminator

Spot luminos emis automat de camera spre subiect, pentru a usura autofocalizarea in conditii de lumina putina. Dupa stabilirea planului de focalizare, aceasta lumina se stinge si nu influenteaza expunerea. .

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73%

Accuracy

Af assist illuminator

A beam of light automatically activated to provide the camera s autofocus system the necessary light to operate in poorly lit situations. The AF assist illuminator s light does not appear in the picture.

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86%

Accuracy

Af lock

Autofocus Lock or AF-L Causes the camera to stop automatically focusing. AF lock is typically used when the subject is outside of the viewfinder’s autofocus sensor(s). The photographer first aims the camera so that subject comes automatically into focus, locks in that focus setting using AF lock so that autofocus is temporarily disabled, then recomposes the image and takes the picture.

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87%

Accuracy

Af lock

Autofocus lock is typically used to hold focus on the part of the scene that s most important to you.

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100%

Accuracy

Af point

The position in the field of view the autofocusing system uses to determine focus.

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98%

Accuracy

Af point expansion

Photographer can manually choose any autofocusing point as the primary one, and if it loses the subject, surrounding points will assist to maintain focus.

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74%

Accuracy

Af sensor

the sensor used to detect focus.

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78%

Accuracy

Af sensor

The AF sensor is a sensor used to detect focus.

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78%

Accuracy

Af servo

Also known as Continuous Focus, AF Servo is maintained by partially pressing the camera s shutter release button, which enables you to maintain focus continuously on a moving subject as the subject moves within the frame. Shutter-response times are usually faster in AF Servo, since the subject is already in focus. For more on this subject, see the explora article, ://www.bhphotovideo.com/explora/photography/tips-and-solutions/choosing-autofocus-modes Choosing Autofocus Modes.

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74%

Accuracy

Af servo

Essentially, motor-driven autofocus; engage it and a digital SLR s autofocus system will continuously track (focus) on a moving subject. .

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73%

Accuracy

Af stop feature

Another feature unique to Canon s four Image Stabilized super-telephoto lenses. Four buttons appear on the outer barrel near the front of these lenses; pushing any one will temporarily lock AF if the camera is in the AI Servo AF mode. Custom Functions on many newer EOS bodies allow these buttons to assume a variety of additional functions.

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77%

Accuracy

Af illuminator

An infrared or bright light beam that fires from the camera to the subject to determine camera to subject distance or to assist autofocusing in low light. .

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96%

Accuracy

Af lock

Stops autofocus operation once the subject is in focus. Useful when shooting a subject outside the focus area in the viewfinder. The photographer should first lock the focus with the subject inside the focus area, then recompose the shot as neccesary.

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