Choosing the right binoculars for bird watching or bird watching can really distinguish between starting a great, enjoyable hobby and becoming frustrated and never going to watch birds. This is simply crucial. Some activities are very dependent on your first experience, which is very bad, you may not do it again. Bird watching is one of the activities. If you can't find the bird, or if you can't clearly target any of the IDs, or see the color details, it's very frustrating. When you hear people talking about how beautiful a bird is and you can hardly see the bird, it can be maddening! I want to tell you what to look out for when looking for binoculars that will make your new hobby more enjoyable!
Compromise is a term we will use often when choosing letcase binoculars for bird watching. The trick is to try to understand the optics you want and how you most likely use the optics. For example, it's best to place very large lenses in binoculars that make the light brighter and better to look at in low light. They are also heavy, and it can be annoying if you need to carry them all day long. A smaller lens may not make too much light, but it will be easier to carry. You have to decide what is best for you!
What is the meaning of all numbers?
The first thing you will notice when looking at binoculars is that there are a lot of numbers! This is the meaning of some of these numbers! You'll see 8x32, 10x42, 5x25, and more, and everything in between. The first number is the magnification and the second number is the diameter of the objective (the front large lens), usually in millimeters. You may see the FOV and a number that is usually in feet. Such as 200, 315, 180. If the view is usually at 1000 yards, this is the diameter. More about these in the future.
Roof and Porro Prism: This determines the configuration of the binoculars is more important than anything else. The porro prism is used in the shape of a classic binocular, and the shape of the roof prism is straight and more like a telescope. There is no optical advantage for both, but roof prisms are more expensive to manufacture. So they are usually more expensive and they are more compact. These prisms are available in two main materials, BK-4 and BAK-7. BK-4 is considered superior because BAK-7 can create blur around the edges of the image.
Size: The size of the binoculars depends on several factors. Are you planning to hike or intend to watch it from the porch or car? Is your hand steady, or do you have a slight tremor or vibration? These are all part of making this decision. You want to find a balance between weight, lens size and the way you plan to use them. Compact binoculars, although small in size and easy to carry, are less sharp or functional in low light conditions and may be more difficult to maintain. Larger objectives typically have large objectives that have sharp, clear images even in fading light, but they can be heavy. The medium size model has a target of 30-35mm and the full size model has a target of 40-45mm. The full size will give you almost all the details that can be handled with your eyes, but it's heavier. You must have an understanding of your use.
Coating: Coatings are applied to glass lenses in a variety of ways, but they help to transmit light, reduce reflection and increase color fidelity. The best binoculars are fully coated, which means that every lens in the binoculars is coated. There are only a few lens elements that are coated and uncoated. This processing can significantly increase the transmission of collected light. The coating on the lens is very thin and somewhat delicate, so care must be taken when cleaning the lens to avoid damaging the coating.
Objective size: As we mentioned before, this is the lens in front of the letcase binoculars, its main function can be considered as concentrating. The larger the lens diameter, the more light you can collect. For example, a 35mm lens will gather about 2 times the light of a 20mm lens. This is based on the formula area = pi(r)2. However, larger lenses will be heavier and less comfortable to carry. Most birds recommend 42mm for maximum size and can be carried comfortably for long periods of time.
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