Print
What type of binoculars do I need?
There are two main body types:
- Porro-prisms have a 'traditional', stepped shape with an angled body.
- Roof-prisms are recognised by a straight-through appearance. They tend to be more compact than porro-prism binoculars and many people find them more comfortable to use. Their internal focusing helps protect them from the elements.
Choice of style is personal preference, but because of fashions, most of the high-quality binoculars today are roof-prism.
Miniature 'compact' binoculars are useful if size and weight are important factors. Their main disadvantage is reduced light-gathering power and field of view. They are easy to hold but you may prefer a more solid shape for steady viewing.
Rubber covering offers better protection against knocks against the body (not against the lens). Waterproof binoculars are widely available, particularly in roof-prism style. Coatings on lenses and prisms improve light transmission through the binocular and give a clearer image.
For disabled birdwatchers, the choice of binocular is dependent on the nature of the disability and personal preference. Trying out different models is particularly important. Low magnification binoculars need less refocusing and offer greater steadiness; stabilising binoculars work well but they are heavy and expensive. Specialist optical suppliers can offer personal solutions.