If the bacteria is Gram positive, it will retain the primary stain (crystal violet) and not take the secondary stain (safranin), causing it to look violet/purple under a microscope. What happens if you skip the safranin in a Gram stain? … Continue reading →

One of the most important steps in Gram staining is the decolorizing step (use of alcohol/acetone). If the decolorizer is not left on long enough, then it will not be able to differentiate between Gram positive and Gram negative bacteria. … Continue reading →

The best mirrorless cameras in 2022: Nikon Z6 II. Fujifilm X-S10. Canon EOS R5. Nikon Z7 II. Nikon Z fc. Sony A7R IV. A dream for landscape shooters. Sony A6100. A brilliant beginner pick that’s perfect for point-and-shooters. Fujifilm X-T200. … Continue reading →

Most modern cameras use a type of adjustable diaphragm known as an iris diaphragm, and often referred to simply as an iris. Does a camera have an iris? Iris — Your camera lens works similarly to the human eye. It … Continue reading →

A condenser is attached to the boiling flask and is clamped in an upright postion, the “reflux position”, and cooling water is circulated to cause the vapours to condense as they rise up the condenser and thus prevent them from … Continue reading →

Focus and recompose simply means choosing your camera’s focus by depressing the shutter half-way with your subject centered in the frame, and then “recomposing” your image by moving your camera while keeping the shutter depressed. Can you focus and recompose … Continue reading →

The microscope optical train typically consists of an illuminator (including the light source and collector lens), a substage condenser, specimen, objective, eyepiece, and detector, which is either some form of camera or the observer’s eye (Table 1). What are optical … Continue reading →

The formula used to assign a number to the lens opening is: f/stop = focal length / diameter of effective aperture (entrance pupil) of the lens. Written on the barrel of your lens, or digitally inside your camera and displayed … Continue reading →

If you are using M50 in default factory setting, manual mode, turning the front dial will change the shutter speed. Press the up arrow button will switch to aperture, turn the front dial to change aperture. How do I change … Continue reading →

iris diaphragm. The condenser is equipped with an iris diaphragm, a shutter controlled by a lever that is used to regulate the amount of light entering the lens system. Above the stage and attached to the arm of the microscope … Continue reading →

The F– error message is indicating the camera and lens are not communicating. Either the lens is not designed with electronic contacts, or maybe the lens is not connected fully and clicked in to place. Make sure if the lens … Continue reading →

Extremely Fast Manual Focus via Focus Peaking With The Sony A7ii. Focus Peaking is a very powerful tool for shooting still photography or video with manual focus and is preferable when shooting video because the photographer can manually “ease in” … Continue reading →

IT is a very broad field. The difficulty is going to depend on the student’s understanding of computer concepts and the part of IT in which they are majoring. Most IT programs provide a general overview of the entire field … Continue reading →

Computer engineering is harder than computer science but not by much. A computer engineering degree is more difficult than a computer science one because you have to take more math courses, additional electrical engineering classes, and several practical lab sessions. … Continue reading →

Answer. Yes, Information Technology is the second most preferred non- core branch after Computer Science Engineering. There is a lot of scope in this branch for further studies. Also, on account of placements IT students get handsome placements with excellent … Continue reading →