Animalscaretips
Lens
A lens that is thicker in the center than at the edges is called a?
A lens which is thicker in the middle and thinner at the edges is called a convex lens. What is thicker in the center than at the edges is called?Whic...
What is wide angled lenss?
What is wide-angle lens used for?What is considered a wide-angle lens?What is the difference between wide-angle lens and regular lens?How do you know...
Do you need a 400mmor 300mm lens for a safari?
Is 300mm lens enough for Safari?What zoom lens do I need for Safari?Is a 300mm lens good for wildlife?What are 300mm lens used for?Should I take a tr...
What is used to clean the eyepiece and objectives?
To clean the eyepiece lens of your microscope, breathe onto the eyepiece lens and then wipe with lens tissue. For dirt that is difficult to remove, ad...
Why do you need convex lens in eye instead of concave?
In myopia light rays are focused in front of the retina, so that a minus concave lens is needed to diverge the rays (Fig. 5). In hypermetropia, it i...