Chrome magnifying glass 'Series'

A classic magnifier. The quality lens gives a sharply defined crystal clear image and it has a good grip for comfortable use.

• magnification/lens diametre
  5x      40 mm
  5x      50 mm
  4x      60 mm
  4x      65 mm
  3x      75 mm
  Please Choose your Magnification below. Bottom picture for comparison
• biconvex lens
• for length & weight see Specifications (above)
• Sturdy magnifying glass
  
  The picture on the top left displays the various lens diameters. Please choose your magnifier below.

Product No. Mag/dia      Lens type
SC 9040    5x 40 mm       biconvex/glass
Lenght: 9 cm Weight: 30 grams

SC 9050    5x   50 mm
Lenght: 13 cm Weight: 60 grams

SC 9060    4x   60 mm
Lenght: 14 cm   Weight: 84 grams

SC 9065    4x    65 mm
Lenght: 14.5 cm Weight: 92 grams

SC 9075    3x    75 mm
Lenght: 16.5 cm Weight: 118 grams

The lens used in this Magnifier:
Aberrations such as coma, distortion, and chromatic aberration almost exactly cancel out also due to  the symmetry.

Biconvex lenses are also called convexo-convex lenses and are mainly made out of a special quality glass. Different types of biconvex-lenses exist such as the planconvex-lens. The most common biconvex lens is the symmetric-convex lens as used in this magnifier.

The biconvex lens is manufactured with identical convex surfaces each side of the lens.The focal lenght is equal to the radius of the curvature. Resulting from its perfect symmetry it produce images close to 1 and up to a magnification of 8x. Biconvex lenses have positive focal lengths and form both real and virtual images.