Sigma 105mm UV MC WR Filter Magnification_10x The illustrated reference section provides

The illustrated reference section provides basic information and the visual characteristics of various types of stars

which is poetic and humorous

And they hold these items to just about everything: poles

Supplied with wedge insert for clamping onto flat surfaces

Sigma 105mm UV MC WR Filter Magnification_10x The illustrated reference section providesUV filters prevents bluish tones in bright sunny weather. Water & Oil repellent coastings repels water drops and fingerprints while an antistatic filter prevents microscopic dust clinging to the surface. This is an ideal, colourless filter for regular use that will not affect colour reproduction.