Lenses

If you feel concerned about your eyes' health and you are particularly afraid of the danger caused to them by ultraviolet rays, you should learn something more about original and authentic sunglasses discovering few special features that can provide you with extra protection for your eyesight in any circumstance.

The choice of high-quality lenses is indeed the main element when buying a new pair of goggles. How many different types of lenses are there? Here is a short list of the most common types.

Polarized Lenses

This kind of lens is indeed very effective because they do reduce reflected glare.

Reflected glare is when sunlight bounces off smooth surfaces, such as water or concrete. Polarized sunglasses can offer extra ultraviolet protection. They are useful in reducing harmful rays from the sun mainly when driving, boating or skiing. However, for polarization does not correspond to UV protection, you must still verify that your polarized lenses do provide adequate sun defence.

Gradient Lenses

These lenses are permanently shaded from top to bottom, or from top and bottom toward the middle.

They can be of two different type.

1) Single gradient lenses are shaded lighter on the bottom and darker on the top. They cut glare from the sky while allowing your vision to see clearly below. Single gradient lenses are ideal for driving, yet not so great for skiing, boating or being at the beach.

2) Double gradient lenses are darker on top and bottom, lighter in the middle. They offer the best UV protection for boating or skiing.

Photochromic Lenses

Lenses of this kind become automatically lighter in low light and darker in bright light. They are the best choice for those who move between well-lit and dimly lit areas.

The only disadvantage is that lenses can take many minutes to adjust to different light conditions.

Mirror Coatings

They can reduce the amount of visible light entering the eyes. Mirror coatings offer thin layers of metallic coatings. When used in conjunction with wraparound frames, they provide an extra layer of UV protection to the skin which surrounds the eye. However, UV protection is never guaranteed.

It goes without saying that this type of features only belong to authentic sunglasses.

Apart from lenses, the frame of sunglasses are likewise important.

When selecting a pair of protective eyeshades, the best shape to choose is a large, huge pair of original Italian sunglasses with wraparound frames: this way, you can be sure that your entire eye is protected, including your peripheral vision.

Get a top-quality pair of authentic sunglasses and be ready to face the brightest sun.

Giovanni Greco
Content Editor

How do I know which lenses are right for which camera?

I have accquired a couple of camera lenses which I beieve are quick good but I'm not sure what type of camera they will work with? One lens is Kumura and the other is Hanimex. Will they work on any professional camera or on certain makes or models.

Different camera have different mountings. For example. Nikon cameras are called "F" mounts while Canon calls them "EF" mounts if i can remember correctly.

there are 3rd party adapters to swap from one mount to another, but problem is that you lose your autofocus on your camera if there is any.

Lenses make are important. If i were you. i would have gotten official lenses from their catalogues to save me the hassel of wondering whether these lenses will produce the best quality images.

so far. Carl Zeiss and Hasselblad are the best combination in the world for image quality. most of the world's studio professionals are using this.

While journalists and photographers still love their Nikons and Canons for their wide range of wonderful lenses.

i myself a nikon user for 12yrs now. i am still loving the way they work.

good luck in your conversion.




Celestron Telescope and 4 Lenses and soft case
Celestron Telescope and 4 Lenses and soft case

$5.51 (8 Bids)
2d 21h 48m remaining

3 MEADE SUPER PLOSSL EYEPIECES LENSES 2X TELENEGATIVE 97MM
3 MEADE SUPER PLOSSL EYEPIECES LENSES 2X TELENEGATIVE 97MM

$19.99
1d 10m remaining

3X TELESCOPE BARLOW LENS
3X TELESCOPE BARLOW LENS

$8.00
21d 15h 31m remaining

125 317mm 3X Barlow Lens for Telescope Eyepieces Astronomy US Local
125 317mm 3X Barlow Lens for Telescope Eyepieces Astronomy US Local

$6.57
27d 20h 20m remaining

32mm Wide Angle Telescope 2 inch Eyepiece Lens  Spacer Kit Slight Blem
32mm Wide Angle Telescope 2 inch Eyepiece Lens Spacer Kit Slight Blem

$10.95
21h 41m remaining

3x Achromatic Barlow Lens 125 317mm Metal for Telescope Eyepiece DC623
3x Achromatic Barlow Lens 125 317mm Metal for Telescope Eyepiece DC623

$9.60
9d 23h 22m remaining

125 Plossl Telescope Eyepiece Set 4 10 25mm+2X Barlow Lens Kit for AstronomyYS
125 Plossl Telescope Eyepiece Set 4 10 25mm+2X Barlow Lens Kit for AstronomyYS

$35.14
21d 23h 40m remaining

33MM lenses for telescope eyepiece or experiments lens
33MM lenses for telescope eyepiece or experiments lens

$3.95
3d 16h 41m remaining

3 BRAND NEW IN BOX TELESCOPE LENS LENSES
3 BRAND NEW IN BOX TELESCOPE LENS LENSES

$39.99
2d 22h 36m remaining

New Meade Lens DOUBLET ASSEMBLY telescope lab photonics optics 110mm
New Meade Lens DOUBLET ASSEMBLY telescope lab photonics optics 110mm

$125.00
14d 21h 33m remaining

125 inch Plossl 25mm Fully Multicoated Eyepiece For Astronomy Telescope Lenses
125 inch Plossl 25mm Fully Multicoated Eyepiece For Astronomy Telescope Lenses

$16.99
2d 5h 51m remaining

GSO 2 SuperView 30mm camera project lens
GSO 2 SuperView 30mm camera project lens

$89.00
26d 21h 37m remaining



« Previous12345...89


Tagged with:

Filed under: Eyepieces & Accessories