Should i buy a kit lens ?

Depends on your need. There will be always Pros and Cons for buying it. Here is some that i know:

Pros:

• Cheap ! Good value if you're on a budget.
• Good usable zoom range - you would never need to change lenses for a lot of occasions

Cons:

• Unfortunately , image quality not as good as more expensive lenses
• build quality can be fairly basic ( plastic )
• slow maximum aperture - Autofocus and hand held exposures suffer in low light. But some lenses come with Image Stabilisation or Vibration Reduction technology , making up for the relatively slow maxium aperture.

Some known kit lenses availaible in the market:

• Canon 18-55mm IS
• Canon 17-85mm IS
• Nikon 18-55mm EDII
• Nikon 18-55mm VR
• Nikon 18-70mm ED
• Pentax 18-55mm
• Samsung 18-55mm
• Olympus 14-42mm
• Sigma 18-50mm
  

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