The compact and lightweight Rokinon 12mm f/2.0 NCS CS prime wide-angle lens for Canon M series APS-C cameras provides a 35mm-equivalent focal length of 19.2mm with a broad 95.7° angle of view. How many degrees is a 10mm lens? Field-of-view … Continue reading →

A lens mount is a standard or proprietary interface used by camera and lens manufacturers to ensure a secure and accurate means for attaching a lens to a camera body. Do lens mount adapters affect quality? A mount adapter has … Continue reading →

Can a lens be too heavy for camera? If the lens itself is equipped with strap mounting points there’s a reason for it; it’s probably too heavy to safely hang from any camera body. Can a heavy lens damage mount? … Continue reading →

To create a perfectly-focused image, your lens must be mounted precisely and within a very minute tolerance. The PL mount is built to accommodate that. It grips the lens firmly with a four-point friction lock instead of the EF mount’s … Continue reading →

License. Safranin (also Safranin O or basic red 2) is a biological stain used in histology and cytology. Safranin is used as a counterstain in some staining protocols, colouring cell nuclei red. This is the classic counterstain in both Gram … Continue reading →

Why is it necessary? Could colors other than red be used? Saffranin is the counter stain used, it is necessary so gram negative bacteria can be identified. Yes, carbol fuschin or any color that can be distinguished from your gram … Continue reading →

In 1977, Nikon came up with a new way to couple the aperture ring to the camera’s light meter: Auto Indexing or AI. AI lenses have a ridge that catches a feeler on a ring surrounding the lens mount on … Continue reading →

TV cameras used lenses of different focal lengths mounted on a turret on the front of the camera, as shown on the right. The cameraperson rotated each lens into position and focused it when the camera was not on the … Continue reading →

Cinema lenses need to be parfocal, with a smooth zoom, large focus throw, hard stops, and minimal breathing. All of these factors add up to a larger, more complicated (and more expensive) lens. What lens is good for cinematic look? … Continue reading →

The Nikon 50mm F1. 8 G is no exception. A lightweight, no-frills lens on full-frame DSLRs, it offers an effective focal length of 75mm on Nikon’s DX format, making it very useful for portraiture and low-light candid photography at a … Continue reading →

But yes, you can adapt Nikon F-mount lenses for micro four-thirds with adapter rings. Can you use Nikon lenses on Panasonic Lumix? Most of the mirrorless cameras (Olympus and Panasonic m4/3, Samsung NX, and Sony E/FE) can use Nikon lenses … Continue reading →

The Manual Zoom (Vari-Focal) lens offers a range of viewing angles when installing your security camera. For instance, a popular lens option would be a 2.8-12mm Lens. This lens would allow for a Wide View (2.8mm) or a Zoomed In … Continue reading →

cell wall. The answer is the cell wall of bacteria. Which part of the bacterial cell is most involved with gram staining and why quizlet? What part of the bacterial cell is most involved with Gram staining and why? The … Continue reading →

How do I use the AF on my Canon camera? First press the AF point button on the back of the camera then look through the viewfinder while pressing the M-Fn button to toggle through the options. 4. In 61-point … Continue reading →

The IR distance is the distance from the camera that the infra red LEDs can illuminate. It’s a largely useless number and you will never be able to identify someone at this distance. All cameras that have on board infra … Continue reading →