Photography is all about capturing light or electronic sensor. Lens acts as censor for capturing.
Lens is the most important feature that will affect the quality of the picture. Lens is the most sensitive part of the digital camera.
Same lens is not used for all digital cameras. There are different ranges and varieties of lenses varying in focal length, speed and other specifications.
The camera which gives the flexibility to change or attach another lens is an ideal camera for professional photographers. Some types of digital camera lens which will give you an idea of selecting lens in appropriate ways are mentioned here.
Based on focal length
- Standard lens: This is a usual lens supplied with digital SLR camera lens. Good for angles close to human eye and for general purpose. These are sharp, light weight and compact. The focal length range is 35-70mm.
- Wide angle lenses: Common choice to shooting natural scapes, sweeping landscapes and outdoor scenes. Used as wide angle, group shots without excluding any element in the frame. The focal length range is <50mm.
- Medium tele photo lenses: Perfect for portraits. Compared to wide angle lenses and standard lenses, these can isolate the element from the back ground and increase the focal length. The focal length range is 85-135mm.
- Long tele photo lenses: Regularly used for sports or documentary style photography that requires close view. The focal length range is >135mm.
Other special lenses
- Macro lens: These can have a very close view allowing the real size of the element. Excellent close ups for nature, insects and flowers.
- Fish eye lens: Twisting the sensitive to create a 180° image circular “fisheye” image. Focal length varies up to 7~16 mm.
- Super wide angle lenses: Exaggerated perceptive or view from restricted vantage. Focal length <24mm
- Super telephoto lenses: Favored by journalists when spying on celebrities or shooting in work time (this avoids shakes) focal length >300mm.
Remember all the lens is made of glass. The sharpness and clarity of the image depends upon the surface of the glass. It’s appealing and hard to keep a lens 100% clean, but you can get close to 100% by using the below tips.
- Never use a tissue to clean the digital camera lens. This will not clean the lens; instead redistribute oily dirt to other parts of the lens.
- Always use a blower brush, cleaning fluid and a lint free cloth to clean the lens.
- Never try to touch the digital camera lens with bare hands because the sensitivity of the lens can spoil by the scratches.
- Don’t forget about the camera filters- a polarizer in front of your digital camera lens will stop accumulation of dirt directly on lens.
- Carry a bag which has enough space to store your digital camera, lens and its extra accessories.
- Last but not the least, always use lid to cover the lens after the snap is taken.