Understanding Memory Cards
Getting yourself in a memory card muddle and not sure which card to buy? We look at memory card speeds...
Technology guides
Advanced technology guide: Determining depth of field
Professor Newman looks at depth of field from the standpoint of what happens in front of the lens
Advanced technology guide: The ultra-wide lens phenomenon
What are the technological developments that have led to building and using wider and wider lenses?
Advanced technology guide: Information theory
How to manage exposure to maximise information rather than manipulate output brightness
Advanced technology guide: Light-emitting diode
The popularity of the light-emitting diode has led to a decline in flash tubes, but why is the LED so...
Advanced technology guide: The optimal format?
With its 1in sensor, the Panasonic Lumix DMC-TZ100 is capable of matching full-frame – with limitations
Advanced technology guide: the art of focus pulling
With stills cameras now the norm for filmmaking, why haven't cine lenses changed accordingly?
Advanced technology guide: the limitations of the JPEG
Bob Newman explains why the JPEG format isn't perfect and why its proposed replacement is no better
Advanced technology guide: bokeh and lens design
What factors determine the appearance of bokeh and how far will people go to achieve this effect?