Does Speed Booster change focal length? Speed Booster® physically reduces focal length and increases maximum aperture (smaller f-number) of the lens. The “35mm equivalent focal length” is not a focal length at all, but a measure of field of view … Continue reading →

Choose to use the aperture ring instead of the sub-command dial to control the aperture. Once you select that option, you can use the aperture ring under the Aperture Priority (A) mode. The controls on the higher-end Nikon DSLRs with … Continue reading →

Can magnifying glass heat water? There would be heat losses in the glass and the glass will reflect some of the light. You are confusing HEAT with HOT. The magnifying glass will produce a hot spot. But will not raise … Continue reading →

Which way does a Fresnel lens go? The ridge side of the fresnel should face inward, either toward the ground glass surface if used in front of the glass, or toward the smooth side if used behind the glass. How … Continue reading →

Engineers at Amazon get a lot of work done in a short amount of time. Our innovative Engineering departments design, implement, and maintain our fulfillment centers. What type of engineers does Amazon hire? Amazon India is hiring software engineers; apply … Continue reading →

ECE can get you a core Job and also an IT job but with IT you can never get a Core Job. IT is more related to CSE so if you had already decided that you want to pursue CSE … Continue reading →

A macro lens can focus very close allowing you to photograph small objects. A telephoto lens [generally] has a narrow field of view and is good for photographing objects that are far away. Is macro lens the same as telephoto? … Continue reading →

The oil immersion objective lens provides the most powerful magnification, with a whopping magnification total of 1000x when combined with a 10x eyepiece. Which objective lens gives greatest field of view? 4x objective lensThe 4x objective lens has the lowest … Continue reading →

AE/AF Lock is an iPhone camera feature that allows you to lock the focus and exposure values when taking a photo. AE stands for Auto Exposure. Exposure refers to the brightness of the image. AF stands for Auto Focus. Focus … Continue reading →

BSF and BSW are Britisch measurement systems, while UNF and UNC are American measurement systems. BSF and UNF are the fine thread systems, while BSW and UNC are the coarse thread systems. What does BSF thread mean? British Standard FineBritish … Continue reading →

The iris diaphragm regulates how much light is on the object being viewed, and the condenser focuses light into an objective as it moves up and down enhancing specimen contrast. How do the functions of a condenser and an iris … Continue reading →

Can I add a camera to my microscope? If you have a monocular or binocular microscope, you still have options to connect a camera.Using a Microscope Over-Eyepiece Camera Adapter you will be able to thread a c-mount camera directly onto … Continue reading →

No, you can’t hack a DVR CCTV without network connected. But nowadays, almost DVR hybrid CCTV systems are being used,which means DVRs support internet, not limited to cable connection. So they can also be hacked if connected to the internet. … Continue reading →

The basic principle of gram staining involves the ability of the bacterial cell wall to retain the crystal violet dye during solvent treatment. Gram-positive microorganisms have higher peptidoglycan content, whereas gram-negative organisms have higher lipid content. What is the principle … Continue reading →