LolliPoP said:
I've no idea what r lenses for. A DSLR can use any type of lenses?
I heard something like Standard lenses, Telephoto, Wide angle?
What r these lenses for?
basically, lenses r used to allow ur camera to focus on ur subject. just like how the lens of ur eyes does.
a DSLR can use any type of lenses of the same mount. as mentioned above. however a point to note wld be because its a DIGITAL slr, some lenses r specially designed for it. whereas on the other hand, some lenses only allow manual focus, hence, u cant auto focus when u mount it on a DSLR.
Standard Lens:
i personally wld call them a walk about lens, as the name suggest, the lens that is mounted on ur cam most of the time as u walk around. depending on preference, this range can be 18-70, 18-125, 18-200, 18-50, 28-70, 28-85, 50mm primes etc
Telephoto Lens:
these would usually be 100mm and above. these provides u with the zoom, so that u can take objects that r further away. they r usually bigger.
Wide Angles(WA):
these allow u to get a wider view of things. extremely useful for landscapes and huge group photos. usually anything from under 24-28mm can be considered wides. however, one prob would be, at the wide end(12mm, 18mm etc) there might be barrel distortion, or ur edges will appear weird, elongated or otherwise.
Fisheye:
i term it the special effects lens. it gives an interesting view to landscapes and buildings. do a search on it
apertures:
lenses come with aperture settings. usually f/1.4,f/1.8,f/3.5-5.6 etc the smaller the number, the more light it allows to pass thru, hence they r better for low light photography. ie. a f/1.4 would be better in low light(indoors, weddings etc) than a f/3.5. primes are lenses with fix focal distance eg.50mm
point to note:
for DSLRs, u would have to take into account the crop factor of the camera, for D70 its 1.5x, 300D its 1.6x(IIRC), oly at 2x and some are full frames. what it effectively does is, it "extends" ur zoom by watever amount of times stated by the crop factor. ie. a 18-70 would have the view of a 27-105mm on a D70. run a search on crop factor and find out more.
i hope i am accurate in my answers and hope that they r of some help. there will be many seniors here who will help u along the way. enjoy photography!!!