thanks for any help :)
What does effect does the change of a camera lens have on a picture ?
most of the answers above are correct but there's even more to learn...
the same lens can produce different results that's why it's good to learn how to use and get the most out of it, per example, for better sharpness is recommended an aperture like f/8 it depends in each lenses sweet spot
expensive lenses have better glass/build quality that helps a lot in image quality, most expensive lenses are know as fast lenses because have large aperture that helps in low light and nicer out of focus points in an image known as bokeh.
two different lenses used at the same focal lenght and any other setting can also produce complete different results, fixed focal lenght lenses are known as primes they have much better image quality than zoom lenses
the type of glass and coating applied to it also make a difference in image quality.
my tip if you are looking to buy a dslr is save money to get a good lens too
What does effect does the change of a camera lens have on a picture ?
All the previous answers have been more or less wastes of time.
I'll just explain this in simple terms.
A shot at 16mm will be a wide-angle shot
A shot at 50mm will be a nuetral shot (If using a 35mm film camera, the 50 will more or less be almost exactly what your eye sees, although 43.5mm or something like that is EXACTLY human eyesight. Think it was a Pentax lens)
A shot at 135mm will be a telephoto shot, so it will be %26quot;zoomed%26quot; in.
0-49mm = Wide-angle
50mm = nuetral (On APS-C camera's, the 35mm is better suited to this role, due to the crop factor)
51-???mm = Zoomed
But yeah, megapixels don't mean squat. To be honest, the size of the pixels counts more, and that's determined by how small or large the sensor is.
megapixels depends on the camera's body sensors. Not the lenses. The lens control the quality and ammount of light allow to reach the camera's sensor. max/min apparature, shutter speed, and zoom capability = lens.
Also, MP does not determine a camera's quality to produce images. The higher the MP simply means bigger size you're allow to print at 100% quality.
I dont know whether u know the technical name of lens like 18-55 mm 75-300 mm. Its all about the lens zooming capacity, there are some other lens like fish eye, micro lens etc.
Each lens has special feature, like micro lens used to take closeup pictures where other lens u cant take it will come glossy. Zoom lens are to take distance scenes. Wide angle lens are for wide scenes. If u are going to buy any lens and camera, first try to understand ur requirement then only go for it.
the lens changes how far you can zoom etc.
megapixels normally don't have any difference.
for example a 12 megapixel point and shoot would be wiped away by a 6 megapixel SLR.
Because MP don't mean everything. A Nikon D80 with 6mp can blow a 10 mp point and shoot out of the water anytime.
Zooming and panning.
A wide angle lens has a short focal length. You will get much more in the picture but it will make things look further away.
A telephoto lens has a long focal length. You do not get as much in the picture and it makes it look closer.
What you really want is a lot of lenses for every possible job but that is expensive and inconvenient so you might compromise by having a zoom lens that will stretch from a short focal length (wide angle) to a long focal length (tele photo).
Another variable is how much light a lens lets in. If it lets a lot of light in, you can take a picture in darker conditions. The limiting factor is the diameter of the lens with finer control being provided by an iris inside the lens that controls the aperture (also called the f stop or f number). The lower the f stop, the more light a lens will let in. Optical glass is expensive so big diameter lenses cost lots more.
Most lenses are imperfect in some way. The more you pay, the better the quality lens you are likely to be buying. You need to know more than you do now for any more detailed explanation to be meaningful. Poor lens quality becomes more obvious the longer the focal length and the bigger the aperture (the lower the f number) so a good quality, big lens costs a lot.
The number of pixels affects the 'quality' of a photo (in quotes because it deserves more explanation that I can put here) though this will be often become apparent only when you display the picture full-size or enlarge it. For example, 6Mp will blow up quite well to A4 size whereas 10Mp will blow up quite well to A3 size. Pixels are a feature of the camera body, not the lens.
Lots of words but it barely scratches the surface. Hope some of it makes sense.
EDIT: whether a lens is wide angle, normal or telephoto depends on the size of your sensor. Wideangle for a 35mm film camera might be, say, a focal length of 28mm but a similar wideangle lens for my Nikon D80 would have a focal length of only 18mm to give exactly the same picture content.
I am taking it you are on about d-SLRs (the ones with interchangeable lenses)
Basically, the camera is in 2 parts, the body, and lens, you buy the body, and then buy different lenses to attach to it.
often cameras come with a Kit lens, this allows you to use the camera for general use when you buy it, they are usually around 28-55mm or something like that.
the megapixels of the camera, depends upon the body, not the lens, they are completely unrelated.
after you have the body you can buy more lenses for different tasks. each lens has a different function, and obviously there is a range of prices on them. here are some examples:
Fish eye: (%26gt;15mm) as you go down in mm, the price increases, around 拢300%26lt;
Wide angle (18-25mm) cheaper than a fish eye, 拢200
Generall use (28-70mm), for everyday use, 拢200-400
Telephto small (70-300mm), for generall zoom stuff 拢300%26lt;
Telephoto prime medium (300mm), for better picures at 300mm, 拢600
Telephoto prime large (900mm+), for better pictures at high zoom, 拢2000%26lt;
Macro (20-100mm) for 1:1 pictures of small subjects, 拢200-600
Camera body's, in relation to megapixels (although the price is defendant on other things)
6-拢200
8-拢400
10-拢600
12-拢700
15-拢2000
32-拢7000
50-more
you can combined them in any way, so you can have a 15 megapixel camera with a cheap lens for 拢2200, or a 6 magapixel camera with a large telephoto prime lens for 拢2200, or both 15MP and large prime, for 拢4000
Pick and Mix, the advantages of an SLR
