Related Clues:

• Glasses glass
• Zoom, for one
• Spectrum revealer
• Light-refracting object
• Half-glasses?
• Bausch & Lomb product
• Photog's accessory
• Contact or zoom
• Paparazzo's need
• Rainbow creator
• Photographer's need
• Refracting device
• Focal device
• Thing on the cover of 'Dark Side of the Moon'
• Spectrum-forming solid