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The LED light source is powerful, cold, very long life (> 20 000 h) and consumes very little electricity. Lenses or objects 50mm dia. are held securely in the lens holder with a screw ring to ensure precise positioning and avoid breakages.

Contents:

• 1 x rail, 2m graduated in mm
• 1 x cold LED light source, long life, on support, mains adapter
• 8 x lens holders
• 4 x diaphragms: Ø 3, 5 and 8mm
• 1 x set of lenses: F -100, -50, +50, +100, +200, +500mm
• 1 x white screen
• 1 x frosted screen
• 1 x letter F
• 1 x prism holder
• 1 x prism
• 1 x concave mirror
• 1 x convex mirror
• 1 x plane mirror