Why is the price gap between SLR camera lenses so big?

1, aperture, aperture will be expensive, large aperture, large luminous flux.

Similar to the pupil of human eyes, the expression mode is f1.2f1.4f2f2.8f4f5.6f8. ...

The larger the number, the smaller the aperture, the smaller the number, the larger the aperture, that is, the more luminous flux, the larger the aperture.

You can make the depth of field shorter, that is, the background will be blurred when taking portraits.

2, lens, a good lens will make the color restore well and the imaging clarity is high, which is what professional photographers do.

Pursuit. Good lenses are generally marked by manufacturers. For example, Canon cameras have the L symbol.

The logo is the use of professional lenses, as well as the ED lens of Nikon lens. Good shot.

It can eliminate dispersion phenomenon and make the color more pure.

3, focal length, generally the wider the angle, the more expensive. For example, 28mm is generally not as expensive as 12mm,

Because the wider the picture, the bigger the picture, but the more complicated the work, the manufacturer should control it from happening.

Deformation. A little further, it will be expensive. For example, lenses over 400mm are also very expensive. This kind of lens

They usually shoot sports news or aviation, because the cost is high from a distance.

Canon's telephoto lenses are generally white, and people with white lenses can also be seen in sports competitions.

They are all more expensive.

4. The lens with anti-shake is more expensive than the one without anti-shake in the same specification.

5. The lenses made in Germany are generally more expensive and the workmanship is better, but the lenses made in Germany are generally not easy to buy.

6, the lens is worth a penny, not a professional photographer, there is no need to buy a professional, because if

If you don't know much about photography, it's no use giving you a professional lens. You can't play his role.