Absolutely; you can use a magnifying lens to focus sunlight into a very hot point. This can be used to start fires (which, of course, you would only do under carefully controlled conditions - otherwise the fire can get out of control).
Lens errors are fairly common. Usually it's sand or grit interfering with the lens extension mechanism. Or the camera's been dropped with the lens extended. Or the camera has been powered on, but the lens had been blocked preventing its extension. Or the battery ran down with the lens extended ... Also you can try twisting the camera lens clockwise gently and it will go down. Do not push it down or else you will break it. Then try turning it on. It might work. There are several things that you can do to try to correct it. These home fixes seem to work for less than 50% of the lens errors. If the camera is out of warranty, they're worth a try. See the below related link "Fixing a Lens Error on a Digital Camera":
The "Fisheye" lens will give the photograph a convex look. I it is very difficult to create a photograph that will work well with the lens without leaving the subject too distorted.
You would have to use a Minolta SLR digital camera with a Minolta lens. However, don't automatically assume an old Minolta lens will work on a digital camera. You need to determine whether the digital camera accepts interchangeable lenses and whether it accepts the specific Minolta SLR lens and mount you have. There is no real generic answer to this question.
lens opening; lens diaphragm some might suggest F-Stop
this is the number of millimeters a lens will make a sharp image at, usually from its back element. 50mm is usual on 35mm film cameras-i.e.as your eye sees a subject. Digital is different for each camera.
A magnifying glass can burn paper by concentrating sunlight onto a small area, causing it to reach high temperatures. The lens of the magnifying glass acts as a converging lens, focusing the sunlight into a small, intense spot that can generate enough heat to ignite the paper.
The magnifying lens that a watchmaker uses for detail work is called a loop.
The convex lens magnifies the image you are looking at.
A magnifying lens is typically convex in shape.
Magnifying Glass or anything with lens.
Yes it can but only by catching sunlight for a long time on the lens then pointing the magnifying glass at the toast I am 10 years old so very clever
A magnifying lens
convex... gago
No, the magnifying power is not simply the sum of the magnifications of the two lenses. In a compound microscope, the total magnification is the product of the magnification of the objective lens and the eyepiece lens.
The lens of the magnifying glass concentrates the sun's light to a point. At that point the paper is heated to its ignition temperature and it can catch fire
The opposite of a magnifying lens is a reducing lens or a minifying lens. These types of lenses are used to reduce the size of an image or object being viewed.
A magnifying lens is typically a convex lens. This type of lens is thicker in the center than at the edges, causing light rays to converge in a way that magnifies objects when viewed through the lens.