Related Clues:

• Glasses part
• Camera accessory
• Place for a cap
• Magnifier, of sorts
• Belt's cousin
• Nikon offering
• Photog's choice
• Purse part, often
• Saddle part
• Brownie's eye?
• Optical device
• Football helmet feature
• Fisheye or zoom
• Bra part
• You'll see right through it