With a distant, clear night comes morning frost and it's a subject that works well for both close-up work and wider landscape riflemen. For your close-ups of the patterns frost is the coating or deposit of ice that may form in humid air in cold conditions, usually overnight creates you'll need a macro lens or a 70-200mm zoom lens with extension cestuses will work just as well if you don't own a macro lens.
Frosts are typically better early in the day, often before the sun hits the frost and starts to thaw it; which means a on start, but one of the benefits of the winter months, is that at least sunrise is at a more sociable time than in the summer! Head for areas of open measure out and rolling landscapes, rather than woodland, where the shelter of the trees can prevent frost.
On a really cold day, when even the sun isn't effective to thaw the frost too quickly, a touch of sunlight helps to emphasise the sparkle of frost, and especially try shooting into the light to accentuate the glint of the sun on the frost quiescent further, but remember to use a lens hood to minimise the chance of flare on your pictures.
Take a reflector out with you (a piece of card covered in balk will do fine) as they're useful for boucing light into shaded spots and remember to slip a few spare batteries into your hooks if you're planning on venturing out for a while. It's also worth remembering to wrap up warm as you'll soon feel the cold when you're defended waiting for those longer exposure times to complete.
Like snow, frost, particularly when it's a thick covering, can fool your camera's meter to over the scene's much lighter than it actually is and it will underexpose the shot. If this happens, use exposure compensation and shoot half to one and a half blockings over what your camera thinks is correct. You should always check your histogram too to ensure the exposure's correct.
If you don't be deficient in to venture too far have look for frost on your windows as the patterns it produces are great for macro work. Out in the garden, icy blades of grass are worth laying early in the morning and look for fallen leaves that are covered with frost while you're out there too. Use a small aperture to make trusty more of your image is sharp but if you're working with a leaf that's still on a tree, try using a wider aperture to cast off the background out of focus, isolating the leaf in the process. While you're looking at branches look for frost covered berries as the reds contrast closely with the white coloured frost.