Technical guides

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Fisheye Lenses

Love them or hate them, fisheye lenses have a place in photography – albeit probably a minor one. Fisheye lenses also require a rethink when it comes to explaining their angles-of-view.

TTL

Flash terms explained

We look at the different terms associated with digital camera flash, including flash curtain sync, GN, PC sync, rear cutain sync, slow sync, sync speed, and TTL

Camera connections

Camera connections explained

We explain the various terms related to the connections on your digital camera, such as USB port, flash sync, mic, AV out, and HDMI

Pentaprism

Viewfinder terms explained

We explain the various terms associated with viewfinders, such as pentamirror, pentaprism, magnification, eyepoint and coverage

LCD screens

LCD screen terms explained

We explain the terms related to LCD screens, including, dots, pixels, OLED, LCD and VGA

ND filter

Filters explained

What are the different type of filters available for your digital camera and what does each one do? Our filters explained article covers graduated filters, ND filters, Polarising filters, and UV...

Video

Video terms explained

We explain various terms referring to the video mode in digital cameras

White balance

White Balance explained

When it comes to white balance what do the various settings on your camera mean? We explain what is meant by terms such as manual, custom, auto, kelvin and preset

AF sensor

Autofocus explained

We explain what the different types of autofocus are, and what each one means, including, AF lock, contrast-detect, continuous tracking, cross-type, manual and phase-detect

LiveMos camera sensor

Sensors explained

What are the different types of camera sensors and what do they mean? Including full frame, CMOS, CCD, APS-C, LiveMOS, Foveon

Image file formats

File formats explained

Different image file formats explained, including DNG, JPEG, TIFF, PSD and RAW

Lens hoods

Why are some lens hoods circular whereas other lens hoods have a curious castellated shape? It’s time to think about lens-hood design.



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Remotes explained

Lens Mounts explained

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Camera memory cards explained

Raw vs JPEG: The pros and cons of Raw files or Jpeg files

Sensors explained

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