Optical grade magnifying lens with viewing portal is perfect for aquarium photography with focal range approximately 3 to 8 inches.
- Held in place by strong rare earth magnets for use on tanks up to 5/8" (16mm) tank wall thickness
- Easily moves around the tank for viewing from any location
- Great at checking for any early signs of disease or pests on your reef coral or fish!
- Deep Seeis Safe for both glass and acrylic!