About BinocularsA straight forward and easy to understand description of how binoculars work and what to look for when intending to buy. Binoculars are usually described by two numbers such as 10x50 or 8x30. If we take 10x50 for example, the first number is the...

Choosing the right binocularsWhen choosing a pair of binoculars, it is well worth spending some time on deciding what you want them for. Binoculars go hand in hand with watching birds, so for this exercise I will take bird watching as the preferred interest. Deciding...

Objective LensThe size of the objective lens helps to determine the resolution of the image being viewed. More light is gathered with a larger lens so a brighter image is obtained. The type of glass and quality of the optics also determines how sharp the image will...

First time using your binocularsOnce you have purchased a pair of binoculars it is well worth knowing how to look after them and achieve the best results.When using for the first time: Open or close the binoculars with the hinge, to set the eyepieces at the correct...

Telescopes There are two main types of optical telescope, the reflector and refractor. The reflector uses a curved mirror to collect light. This main mirror fixed to one end of a tube, concentrates the light on to a secondary mirror which reflects it into the...