If the safranin step were skipped, none of the cells would take up a pink color. What happens if you forget to add safranin in a Gram stain? A safranin counterstain is used to stain these Gram-negative cells pink. However, … Continue reading →

condenser lens. The condenser lens is placed between the light source and the specimen and it gathers and focuses the light rays in the plane of the microscopic field to view the specimen. What part of the microscope that focuses … Continue reading →

8 as it won’t have a rubber ring on the back of the lens. But this lens is being pushed as a kit option, and it’s a full-frame lens. Is Nikon Z FC a full-frame? The Z fc’s 20.9-megapixel DX-format … Continue reading →

The main benefit of a gram stain is that it helps your doctor learn if you have a bacterial infection, and it determines what type of bacteria are causing it. This can help your doctor determine an effective treatment plan. … Continue reading →

Lower f-stop settings (such as F5. 6) have a larger diaphragm opening, allowing more light through the lens. On the other hand, Higher f-stop settings (such as F11) have a smaller diaphragm opening, allowing less light through the lens. What … Continue reading →

Go the pharmacy and get some 91 percent isopropyl alcohol. If the haze is caused by lubricants from inside the lens that have evaporated and then redeposited on the lens, this might work. Can haze be removed from lenses? Location: … Continue reading →

The light doesn’t affect sharpness. However, too much light in the wrong place can appear to reduce sharpness due to bleeding. If you take a picture of someone inside a room against a window looking out onto a sunlit scene, … Continue reading →

Every photo needs sharpening, so if you aren’t going to do any sharpening in Photoshop afterwards, you should at least set your sharpness level in your camera to “1”. However, if you edit your photos at all, you might as … Continue reading →

The organisms that do not take up primary stain appear red under a microscope and are Gram-negative organisms. The first step in gram staining is the use of crystal violet dye for the slide’s initial staining. What color do Gram-negative … Continue reading →

How to take good photos with a phone – 10 killer tips! Capture Multiple Shots. Learn What Your Camera Can Do. Stick to Outdoors and use natural light where possible. Avoid Digital Zoom. Use HDR. Use Editing Tools. Apply the … Continue reading →

A new lens will last about three years before it expires. You should never wear a lens that has expired. How long do camera lenses last for? I see people using 20–30 years old lenses and they work fine. Originally … Continue reading →

The top of your glasses frame should follow the line of your eyebrows. Avoid having too much eyebrow above or below the frames. Sunglasses, however, should always cover your eyebrows. Are your glasses supposed to cover your eyebrows? Specifically, you … Continue reading →

The internal diameter of the Z mount is 17% larger than the Nikon F mount—it’s also wider than any full-frame mount available (as of 8/23/18). By creating a mount with a large inner diameter and short flange focal distance, compact … Continue reading →

Conventionally, 1 inch represents 5 feet. This specifies an exact scale of 1:60. That implies that a 28 mm tall figurine represents a 1.68 meter person – which is a reasonable number for a modern 50th percentile male (See: Human … Continue reading →

Both types of lenses have pros and cons in landscape photography. Prime lenses are always usually regarded as having sharper optics than zoom. They’ll be lighter as there’s less glass in them, and also you’ll find them ‘faster’ with better … Continue reading →