If you're shooting landscapes and want to keep the foreground as well as the horizon in focus, for instance, this can be difficult on a full-frame camera unless you use extremely small lens apertures, which can mean slow shutter speeds (click here for more quick, but great, landscape photography tips).For sports photography, a top-end APS-C camera such as the Canon EOS 7D or Nikon D300s is a better choice, especially if you're on a budget.This is because the crop factor gives you a longer effective focal length.
At any equivalent or effective focal length, larger sensors will give you a smaller depth of field - the depth of apparent sharpness in a picture.
As a result, the full-frame sensor size is ideal for portraiture, where you want to use a wide aperture to blur the background and make main subjects stand out (to learn more, see Full frame DSLR: do you really need one? The flip side is that APS-C cameras can be more useful than full-frame models when you want a large depth of field.
This is also true of Micro Four Thirds cameras, but those are more compact because they don't have an optical viewfinder or mirror assembly.
They require Micro Four Thirds lenses, but you can also fit regular Four Thirds lenses via an adaptor. 3: Should I buy a DSLR with a twisting LCD screen, or is it just a marketing gimmick?
Fully articulated LCD screens can also flip around and fold back into the camera with the screen facing inwards.
This keeps the fragile surface of the LCD safe from picking up any knocks or scrapes when you're carrying the camera around. 4: I've been comparing digital camera spec lists, but what's the difference between types of autofocus points, and how many do I really need?Some entry-level DSLRs - such as the Olympus E-450 - only have three AF points, whereas the upmarket nikon D300s has 51.An advantage of extra AF points is that it enables the camera to track moving subjects more precisely in continuous autofocus mode.VIDEO CONTEST WINNER REVEALEDAs you watch this year's top videos, be prepared to laugh out loud, feel empowered, get nostalgic and dance wildly around your living room. 1: I want to invest in a really good DSLR, but I'm torn between the full-frame and APS-C sensor sizes. A full-frame camera uses a sensor that's the same size as a frame of 35mm film.DSLRs also often feature a high-sensitivity AF point at the centre, which focuses faster and can give greater accuracy when using a fast lens with a maximum aperture of f/2.8 or larger. 5: I've heard photographers talking about using a 'wide' aperture or a 'small' aperture, but what do they mean?