Prime Lens is lens that has a fixed focal length, example: 50mm
Zoom Lens is lens that has a flexible focal length, example: 18mm – 55mm
Prime Lens
1. Quality
The inside build of a Prime Lens is simpler than a Zoom Lens, since they don’t have a lot of moving parts like zooms, the glass inside of a Prime Lens is very precise. It has the ability to produce clean, crisp and precise shots.
2. Price
Well, nowaday Zoom Lens also improved on the quality, but you would be spend more cost on same quality Zoom Lens instead of Prime Lens. Thus, you can get reasonably priced Prime Lenses with wide apertures.
3. Weight
Simpler build, lighter weight. Ya, Prime Lens will lighter than Zoom Lens, it is easier to carry, and may be it will slightly prevent your hand shake while taking photo.
4. Speed
Prime Lens is faster than Zoom Lens in terms of aperture.
Zoom Lens
1. Flexibility
This is the key selling point of Zoom Lens, with it’s variable focal length, you may just need one lens to coverage all the focal length.
2. Price
You need one Zoom Lens to coverage the focal length, while you need a lot of Prime Lens to do so. So this is the price comparison between “one Zoom Lens” and “N number of Prime Lens”. The N number is depends on your demand.
3. Portability
Same reason to price, it is easy to carry one lens rather than three or five lenses.
Conclusion:
Prime Lens or Zoom Lens, it totally depends on yourself, depends on what you actually need. What type of picture you wish to capture by your DSLR? (portrait, sports, landscape or other) How many budget do you have? What you want?
article references:
a) http://digital-photography-school.com/prime-vs-zoom-lenses-which-are-best
b) http://www.digital-slr-guide.com/prime-and-zoom-lenses.html
I WANT TO KNOW ABOUT RAW FORMAT & NOISE GENERATED BY A DIGITAL CAMERA & HOW TO MANAGE NOISE. I ALSO INTERESTED ABOUT CITICAL APPERTURE FOR SHORTRANGE (18mm to 55mm) zoom lenns. HAS THERE ANY
MASKING SOFTWARE OR PLUG – INS TO BRING SUBJECT FROM A CLUTTERED
BACKGROUND ? HOW TO IMPROVE DEPTH OF A DIGITAL PICTURE USING ZONE
SYSTEM ? EXAMPLE SOFTWARE : LIGHTZONE 3.8
SOME INFORMETION REQUIRED
are you mean after the picture taken? if you want to manage the noise after taken, you can use photoshop (Filter>Noise>Reduce Noise)
If before taken, you want to take a less noise picture, try dont to put high ISO, as high ISO will cause noise
second, are you mean to make a blurry background become clear? that is imposible to do that by using any software. IF you want to take a picture with clear background, try to increase the F value (Aperture) in your camera.
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