Optimal choice of prism for outdoor binoculars
Different prism systems (porro or roof prism) can be used for binoculars for hiking or outdoor binoculars. Binoculars with roof prisms are preferred by many people because of their more compact and lighter design. However, wandering glasses with Porro prisms are less complex to produce and therefore often cheaper, but the quality is not worse. The Porro design sometimes brings certain advantages in terms of light intensity, but often has a smaller field of view compared to roof prism binoculars of the same size. This rough comparison of the respective advantages and disadvantages is only intended to support you in your personal choice. Since both designs are suitable for use on hiking tours or on vacation, it is up to you to decide which properties are more important to you.
Which lens diameter for outdoor and travel binoculars?
The lens diameter of binoculars determines the light intensity of your outdoor or travel binoculars. At the same time, larger lenses also increase the weight. Binoculars with lenses > 42 mm are specially designed for twilight or night vision and are already quite heavy. As travel binoculars or outdoor binoculars, this high light intensity does not seem necessary and the associated higher weight is rather a hindrance. For this reason we recommend 25 - 42 mm lenses for your outdoor or travel binoculars. In addition, larger designs are usually more robust and better suited as outdoor equipment for trekking tours.
Outdoor binoculars & leisure binoculars by DDoptics
have one thing in common - they are brilliant, small, light and handy.