Important parameters of bird watching goggles

For bird watchers, choose binoculars, which can not only help us observe more details of birds, but also bring beautiful enjoyment and delight our minds! The size and weight of the binoculars are moderate, suitable for carrying at any time, comfortable for observation, large field of view, very suitable for observing forest birds (the forest birds are not far from the observer and move at a fast angular speed), and the operation is also very simple! The requirements for birding binoculars are as follows:

1) Multiple focusing: The multiple can be adjusted according to the distance. The precise thread and smooth contact surface are both important for smooth focusing. The revolutionary ergonomically designed handle integrates Tontube's new mechanically designed focusing system, and retains the time-tested alloy material to achieve light weight while ensuring the product's robustness and durability.

Prism: A prism must be added to the binoculars to obtain an erect image. Generally speaking, the binocular lens with roof prism is more suitable for bird watching. Suitable for observing close-range targets. It is also easy to be made into a nitrogen-filled waterproof structure, which is more suitable for harsh outdoor environments. Small size, light weight, good portability!

However, the use of roof prisms requires the use of high-precision prisms and complex coatings to obtain excellent observation results, and the high cost leads to high prices. With Tontube's telescopes, the flat field mirrors result in nearly completely flat, distortion-free images - with outstanding edge performance as well.

Focusing type: When observing forest birds, the distance between the bird and the person is suddenly far and near. Only with central focusing can it adapt to the rapid changes in the distance of the observed object. With some center-focusing binoculars, the FRP Frontal Pillow (optional accessory) ensures comfortable viewing for extended periods of time with the Tontube. Adjustable to line of sight, providing stable three-point support for stable use even at high magnifications. You can also quickly track the movements of the birds in flight!