Welcome to Camera Filters.biz!

This site provides information not obtainable from the appearance or specification indicated on the catalogue, based on the results of exhaustive analysis we will carry out via independent research, focusing on protective and polarizing filters.

Feature articles

Camera filter aging 02:
Human sense surpassing measurements by precision instruments

Following the last issue which focused on the mechanism of weathering, this time we will show you the actual cases of weathering on filter products.

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Compare UV-cut filters

General ranking   Product name Comment
1 HOYA HD UV An excellent product with all the factors providing a wholly-balanced high performance. Transmittance and anti-reflective efficiencies are prominent. It is the most valuable camera filter adopting tempered glass and an anti-fouling effect.
2 B+W Xs-Pro Digital Ultraviolet MRC Outstanding transmittance efficiency, but room for improvement in the UV-cut effect. This filter is therefore recommended for those for whom the UV cut effect is not the top priority. Also includes an anti-fouling effect.
3 Kenko Zeta UV L41(W) A positive and generally well-balanced product. No faults are found, but it is expensive.
4 HOYA Ultraviolet UV PRO1 Digital An excellent product with all the factors providing a wholly-balanced high performance. Buyer satisfaction guaranteed.
5 Kenko PRO1 Digital UV An excellent product with all the factors providing a wholly-balanced high performance. Buyer satisfaction guaranteed.

Compare PL filters

General ranking   Product name Comment
1 HOYA HD Circular Polarizer It is the champion miles ahead of the others. The only product able to block UV. It also has prominent transmittance efficiency. It must be the choice!
2 B+W Circular Polarizer Multi-Resistant coated(MRC) The result indicates that it is a well-balanced product, but no match for HOYA Circular Polarizer.
3 Promaster Digital HGX Circular Polarizer It was overall good, but the disappointment was its poor UV cut effect.
4 B+W Circular Polarizer Multi-coated It was overall good, but the disappointment was its poor anti-reflective efficiency.
5 KENKO Zeta C-PL(MC) The product is as thin as 0.8mm and as light as 10g, but unfortunately this seems to have resulted in an inferior basic performance.

Picked-up terms

ultra-violet ray

This is electromagnetic radiation with wavelengths shorter than 380 nm (397 nm by one account). When subdividing, it is classified as near UV...

Nanometer (nm)

This is a unit of length meaning 10-9 meter.Nano is a prefix meaning one billionth.The unit sign is nm.Previously, the millimicron unit was used...

Polarized light

The light travels on vibrating vertically. However, certain lights travel in all directions with an equivalent intensity of vibration. Such lights are...

Wavelength

The wavelength corresponds to the distance between two peaks and troughs of a wave. For a travelling wave, one wavelength is equivalent to the distance...

Ghost image

This is a kind of flare. When sunshine appears on the camera screen, or when taking a picture of something very bright, a clear color cast may be present at...

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How to choose a lens filter

Camera Filter Basics.

What to know first when choosing a camera filter.

Transmittance and Reflectance

A high performance is required as if "a camera filter doesn't exist."