Opera Glasses

General Properties of Opera Glasses

Opera glasses are specifically made for indoor use and observing the objects in theaters, opera houses and galleries.

They are simply made and usually don’t house a special optical technology which can cause slightly worse images and blurry edges but also makes them cheaper.

4x magnification and lower is recommended for Opera Glasses to eliminate shaky images and get a large enough field of view.

Opera glasses are compact and light enough to fit in your pockets or purse.

Main Features of Opera Glasses

Opera Glasses are small and light
Opera Glasses are cheap
Opera Glasses have integrated flashlight
Opera Glasses have a very chic design
Most Opera Glasses are not waterproof and fog-proof
Opera Glasses have lower power (below 4x magnification)
Opera Glasses have small lens diameter ( < 30 mm)

Opera Glasses

Prism types of Opera Glasses

Galilean prism design
Roof design

Opera Glasses with Galilean prism design

In some cases, opera glasses use Galilean prism design, meaning that they have a convex objective lens and a concave eyepiece which produces an upright image.

Because of this, opera glasses do not require prism and are therefore cheaper and more compact.

Opera Glasses with Roof Prism

Sometimes, however, Opera Glasses are equipped with roof type prism s which makes them a bit bigger and optically better.

Protection of Opera Glasses

Because of their purpose of indoor use, most Opera Glasses are usually not waterproof and/or fog-proof.

Focusing option on Opera Glasses

To compromise with image quality and a wider field of view, opera glasses do not offer zoom features and often have a fixed focusing option.

Buil-in Light in Opera Glasses

In some cases, Opera Glasses have integrated light that can be useful in low light situations. They come in many colors and designs to fully equip you with sophisticated opera companion.