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Focal lengthvs zoom

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Please don't mess a lens focal length, flange focal distance and back focal distance. These are three different parameters as you can see on the diagram below.

AKVA connect is a powerful and advanced software for daily control of all your feeding processes. Combined with AKVA group CCS Feed System, it is the most adaptable and user friendly system on the market.

As modern fish farming and the technology has become more advanced, the need for professional service and preventive maintenance has increased. AKVA group offers global professional service on all products.

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What isfocal length oflens

Smart wireless transmission of surface and underwater video images as well as simple hardwired network solutions for video control and data transmission.

Understanding focal length is essential for photographers, as it plays a crucial role in composition, perspective, and the overall look of an image.

Find our large selection of Canon Fixed Focal Length Lenses. Pick from 40 Canon Fixed Focal Length Lenses, - Full-Frame Fixed Focal Length Standard Lenses, ...

Flexible camera solutions, like monochrome feeding cameras or winch-controlled pan & tilt 360o Twin color cameras, provides crystal clear pictures.

What isfocal length oflens class 10

View angle of a lens is formed by the lines connecting center of the lens front element with border points of the space pictured by the lens with acceptable sharpness and brightness. The lens can be used for shooting on the frame size with diagonal that is less or equal to diameter of the image circle of the lens. Many cine lenses have larger image circle than size of the acceptable image quality circle, so actual view angle of most lenses is greater than view angle determined by the frame size.

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AKVA group's modern camera and sensor technology ensure optimum operations and a healthy environment for the fish. Our product range also includes reliable solutions for data transmission.

Wide-angle lenses have shorter focal lengths, typically less than 35mm, providing a broad field of view. Telephoto lenses have longer focal lengths, often above 70mm, allowing for magnification and bringing distant subjects closer.

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Shorter focal lengths (wide-angle) tend to have a deeper depth of field, keeping more of the scene in focus. Longer focal lengths (telephoto) can create a shallower depth of field, isolating the subject from the background.

Cameralens distance chart

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Monitor and control all parameters in your production environment to secure maximum stability in your system. Temperature, oxygen, salinity, pH, etc.

Focal length oflens formula

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Focal length of a cameranikon

Environmental sensors combined with AKVA connect will monitor and secure the stability in your system. The data can be viewed in real-time or logged for later analysis.

A zoom lens has a variable focal length, allowing the photographer to adjust the magnification level. For example, a 24-70mm lens is a zoom lens that can be set to 24mm for wide shots, 50mm for a normal view, and 70mm for a closer view.

Crop factor, associated with cameras with smaller sensors, effectively multiplies the focal length of a lens. For example, a 50mm lens on a camera with a crop factor of 1.5x behaves like a 75mm lens (50mm x 1.5).

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Our advanced video camera and sensor systems monitor both the fish and the feeding process. This ensures optimum operations and a healthy environment for both people and fish.

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Camera focal lengthcomparison

The pin assignment is the same as for the a-coded plugs with four or five poles. M12 connectors 4-pin C-coded.

Deviation of the actual focal lengths from the values listed above should not exceed ±2% for lenses with F<=22mm, and ±3% for all other lenses.

Focal lengthexamples

AKVA group has a complete product range from basic monochrome fixed cameras to moveable pan and tilt cameras above and below the surface.

The choice of focal length depends on the intended use. Higher focal lengths are not necessarily better; it depends on the photographer's creative vision and the type of photography. Each focal length has its advantages in different situations.

Both analog and digital cameras are integrated into the system, and are fully controllable from any site or position. Multiple scalable camera windows can be shown and controlled directly on screen and monitored via the Internet.

Shorter focal lengths (wide-angle lenses) capture more of the scene in the frame, making them suitable for landscapes and tight spaces. Longer focal lengths (telephoto lenses) bring distant subjects closer, making them ideal for sports and wildlife photography.

Focal length is one of main parameters of any lens. This is the distance from the optical center of a lens to the camera sensor when the lens is focused to infinity. It is usually measured in millimeters (mm). Optical center of a lens is the light rays convergence point inside the lens. Focal length determines useful angle of view for specific frame size in vertical and horizontal planes. Shorter focal length means wider angle of view both in the objects plane and in the image plane. Longer focal length lenses give larger image of the object.

The "normal" focal length is generally considered to be around 50mm on a full-frame camera. A 50mm lens provides a field of view similar to what the human eye perceives, making it versatile for various types of photography.

AKVA groups cameras have been produced for more than 20 years. Usability, reliability and crystal clear images are on the top of our agenda, which is reflected in our portfolio of dedicated camera solutions.

On the diagram below the object is located at the same distance from the camera sensor. But due to the lens optical center is farther frome the sensor, a 75mm lens produces larger image than a 35mm lens.