Protection Filter Lens

Protection Filter Lens

Wearing Blue Contact Lens Makes Eyes Aging

Since wearing contact lens becoming a fashion in daily, colorful contact lens are really in the day. For the appearance with more charming, more and more people, especially the youth, choose to wear a pair of contact lens instead of the glasses. But they usually ignore an important problem whether colorful contact lens safe or not.

In fact, wearing colorful contact lens harms eyes' health greatly, indeed. Now, most of colorful lens are made from plain ones adding with some colors. Looking from the surface, colorful lens are similar to plain ones except with various brilliant colors. The truth is not just like this. The colors block some tiny holes designed for touching oxygen, which results in the situation that eyes are short of oxygen in turn. Moreover, cornea, different from other parts of the body, has no blood vessels and mainly depends on absorbing oxygen in the air to complete the metabolism and keep normal functions. The colorful contact lens cause eyes separated from the air. Without enough breath, eyes will be in bad conditions. For a long time, there will be eye diseases, like cornea inflammations. If the quality of colorful lens is not good enough, the colorful materials may leak out and eyes are in danger all the time.

It is researched that contact lens in blue harm eyes more compared to other colors. The color, blue, has a week capacity in filtering ultraviolet rays, which will bring about much more harms to optical cells. Blue contact lens will bring forward the oldness of eyes. So is red contact lens. So, you'd better not to choose contact lens in these two colors.

If you want to wear colorful contact lens, first of all, make sure that they are suitable for you. Eyes with some diseases can not stand for the colorful lens at all. Then choose the right ones with high quality. Regular optometry is also essential. In a word, never wear colorful contact lens at your pleasure. At the same time, colorful lens should not be worn all day long, the less, the better. Though you can wear them to show personality in some situations, the health of eyes is more important, after all.

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filter...67mm size (18-135mm lens) for Nikon D80, what brand and difference between skylight, UV haze, & clear

i will be using the lens for mostly just lens protection, however, if the skylight/UV haze (by the way, what exactly is the difference between these) enhances the image compared to just a clear filter, then thats what i want.

PLEASE provide specific BRANDS (whats the best between tiffen, hoya, heliopan, formatt, or B+W, or the Nikon brand....i need a filter (either skylight or UV haze thats 67mm....on bhphotovideo.com, there are NO nikon skylight filters, can anyone help me???)
first sentence should read:

I will be using the FILTER for mostly lens protection.....

sorry about that

All three are lens protectors. If you ever plan on using the lens on a 35mm camera then the Skylight would be the choice. It removes the slight blue haze sometimes noticeable on certain color transparency films. The UV filter is good for cutting through a little haze. I have really never seen a clear filter, but while it will protect the lens, for the money I would get one of the other two.

Of course Nikon would be the first choice for polarizing filters. Hoya and B+W are both fine filter companies and are used by many pros. Except for some VERY critical photography (like forensic or scientific) or if you routinely shoot into the sun or other light source, Tiffen, heliopan and others are quite good..

ATP Vlog #1: Intro, Equipment, and Texting KGB

Tiffen 52mm UV Protection Filter
List Price: ~~$16.49~~
Sale Price: $5.77
You save: $10.72 (65%)