Body only means the camera comes without a lens. The camera will be unable to take a photo without the lens. You will have to buy a lens separately. Can I buy a camera without lens? Engineers have developed a … Continue reading →

The most important part of a microscope are the objective lenses. What is the most important part of a microscope and why? While the modern microscope has many parts, the most important pieces are its lenses. It is through the … Continue reading →

How to carry the microscope. When carrying the microscope, hold its arm securely with both hands. When carrying the microscope, do not hold the focus knobs, eyepiece tube, stage, or other components as it may result in those parts coming … Continue reading →

You don’t have to do it every time you go out, or even every week – unless you are live in an area that is particularly dusty or sandy. Even a relatively thick layer of dirt on the front element … Continue reading →

Hold down the AEL (Auto-Exposure Lock) button to the right of your camera display. As you hold down that button, turn the dial to the right to get a lower f-stop/larger hole, and to the left to get a higher … Continue reading →

Do camera lenses wear out? – Quora. Yes, each and every component ages, but at its own pace. The mechanical parts that come in contact with its other can wear: AF motor, Aperture blades, aperture actuation motor, zoom rails, focusing … Continue reading →

Can softbox be used outdoor? A softbox is just a small light, used primarily in studios, but which can be adapted for use outside. The mini variety tends to be best in this regard since it is easy to transport … Continue reading →

Well the standard lens test is based on what’s know as ‘optical metric scores‘ which are standard measurements used to rate the performance of a camera lens, such as its sharpness, distortion, vignetting, transmission and chromatic aberration (see image above). … Continue reading →

Hence, it does not affect the image. The dust on the rear part of the lens, however, does affect the final image because the light directly hits the sensor and anything blocking the light will also show up on the … Continue reading →

As @ahockley said, the resolution (number of megapixels) is determined primarily by the sensor, so changing the lens doesn’t change it. Being fair, the resolution of the sensor is basically the theoretical maximum of which the system as a whole … Continue reading →

Optotune’s focus tunable lenses are shape-changing lenses based on a combination of optical fluids and a polymer membrane. The core element consists of a container, which is filled with an optical liquid and sealed off with a thin, elastic polymer … Continue reading →

In Old English, æ represented a sound between a and e (/æ/), very much like the short a of cat in many dialects of Modern English. If long vowels are distinguished from short vowels, the long version /æː/ is marked … Continue reading →

What is the advantage of being able to rotate the body tube? Rotating the body tube helps to share observations with others without moving the microscope as a whole. What is the purpose of the body tube on a microscope? … Continue reading →

aberration, in optical systems, such as lenses and curved mirrors, the deviation of light rays through lenses, causing images of objects to be blurred. What causes aberration in lenses? An aberration is an imperfection in the way a lens focuses … Continue reading →

L-series lenses are Canon’s professional lenses; they’re designed to meet the needs of working photographers, although plenty of amateurs also own L lenses. This means that there are a number of factors that—generally—differentiate them from cheaper non-L lenses even if … Continue reading →