If the lens’ title has “EF” (no S) in it, then you can use that lens on either full frame or crop frame sensor cameras. For Nikon, if you see “DX” in the title, the lens is for crop frame … Continue reading →

Security cameras are recognized as an excellent deterrent to criminals. The experts we spoke with don’t recommend relying solely on cameras for security, saying a complete home security system is the best defense. However, cameras are still important. Do we … Continue reading →

How do camera mounts work? Most lens mounts in current use are bayonet style, in which a lens is attached to the camera body by registering the lens in proper orientation with the camera body, then giving a slight twist … Continue reading →

Both cameras will operate well in any location, however, the bullet camera will work better for a long-range video while the dome camera will work better for shorter distances but a wide-angle. Both dome and bullet cameras include LEDs that … Continue reading →

IS THE CANON 70D A FULL FRAME CAMERA? No, just like the Canon 80D and the newer full-featured 90D, the 70D is a “crop” sensor, designated as an APS-C sensor. What is the crop factor of Canon 70D? 1.6xThis lens … Continue reading →

Now, most standard zoom lenses have become as wide as 24mm and are even equipped with built-in image stabilization just like this new one.Benefits of compactness and image stabilization. Camera Canon EOS 5Ds R Lens F Number F2.8 Exposure Mode … Continue reading →

Some of the key differences between bullet cameras versus dome cameras include shape, installation, and camera range. While bullet cameras stick out and point in one direction, dome cameras are more discreet due to their dome shell protection and wider … Continue reading →

G – If you see a letter “G” after aperture in the lens, for example “Nikon 50mm AF-S f/1.4G”, it means that the lens does not have an aperture ring like the old lenses. All modern Nikon lenses are “G”, … Continue reading →

Safranin is the secondary dye used in the Gram stain. This dye will stain the decolorized Gram-negative cells, which will appear in pink. What reagent is applied to Decolorize the Gram-negative bacteria and thus differentiate it from the gram positive? … Continue reading →

WHAT DO VARIFOCALS COST? The price for varifocals varies greatly. Depending on whether varifocals are bought online or from an optician, whether they are simple or high-quality lenses, a till frame or a branded frame, varifocals can be priced between … Continue reading →

Micro Four Thirds system. Panasonic Lumix DC-GH5 Overview Type Micro Four Thirds system mirrorless camera Released March 2017 Lens Lens mount Micro Four Thirds system mount Is GH5 EF mount? Any lens designed for a camera system that has a … Continue reading →

Lens release button – When you want to change lenses you need to press this lens release button and then twist the lens to opposite way (to when you mounted it) to remove it. How does the shutter release button … Continue reading →

The inclination joint of a microscope is located at the bottom of the instrument, where the base connects to the arm. The inclination joint allows a microscope to tilt. What is the role of inclination? The inclination function may be … Continue reading →

In movie cameras, the two most popular mounts in current usage on professional digital cinematography cameras are Arri’s PL-mount and Panavision’s PV-mount. The PL-Mount is used both on Arri and RED digital cinematography cameras, which as of 2012 are the … Continue reading →

After the initial washing, a counter stain (safranin) is used. The purpose of the counter stain is to stain the vegetative cells that lost the primary stain. Why is safranin used in endospore staining? Malachite green is water soluble and … Continue reading →