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 →

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 →

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 →

What is the function of Safranin? Used to stain the Gram-negative cell walls since they lost the primary dye during decolorization. What is the purpose of safranin in Gram staining? The safranin is also used as a counter-stain in Gram’s … Continue reading →

The main difference between the two brands is the autofocus. With Canon, all the EOS lenses have autofocus. Meanwhile, only Nikon AF-S lenses have autofocus. It is also worth noting that even non-AF-S lenses still work on Nikon DSLRs. Which … Continue reading →

Unfortunately, Apple’s iPhone doesn’t have a changeable aperture setting built in to the camera app. But don’t despair! It can be done—or at least, the shallow depth of field effect can be achieved using an iPhone. How do I get … Continue reading →

In theory you could use any lens you want but the general rule of thumb for Star Trails photography is to use a wider field of view lens (35mm or wider) to capture more of the nighttime sky. Additionally, having … Continue reading →

Sometimes the filter ring size is marked on the front of the lens. If a filter is fitted, then the filter will usually have its size printed on the side somewhere. If you can’t find the filter size marked on … Continue reading →

USB-C. USB-C is a highly versatile connection. It can be used to transfer files, connect peripherals like high-speed storage drives, displays, and more. One key feature of USB-C that is used widely on modern smartphones is audio transmission. Which USB … Continue reading →

How do you clean a 100x microscope lens? If you are using a 100x objective with immersion oil, just simply wipe the excess oil off the lens with a kimwipe after use. Occasionally dust may build up on the lightly … Continue reading →

The aperture size also influences the sharpness of the image. With a large aperture size, the image is unclear because too many light rays from each point reach the paper, spreading the image and causing blurring. What is the effect … Continue reading →

Navigate to Edit > Preferences (Win) or Lightroom Classic > Preferences (macOS). Select the Presets tab from the Preferences dialog box. Select Override master settings for specific cameras under Raw Defaults. Select a camera model from the Camera drop-down. How … Continue reading →

The good thing about astigmatism is that it can be corrected with the right prescription eyewear. Eyeglasses are one popular option, but if you’re someone who prefers contacts, then your eye doctor will prescribe one of three types of contact … Continue reading →

To achieve bokeh in an image, you need to use a fast lens—the faster the better. You’ll want to use a lens with at least an f/2.8 aperture, with faster apertures of f/2, f/1.8 or f/1.4 being ideal. Many photographers … Continue reading →

Low power objectives cover a wide field of view and they are useful for examining large specimens or surveying many smaller specimens. This objective is useful for aligning the microscope. The power for the low objective is 10X. Place one … Continue reading →