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Understanding focal length and aperture | Become a photographer with Shubham Part-9

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1. What if focal length Focal length is the distance from the center of the lens to the imaging point 2. Focal length and aperture relation: The aperture is a fraction that describes the ratio of aperture (entrance pupil) diameter to focal length. 3. How to differentiate between lenses: Camera name itself says, like: Nikon 18-55mm f/3.5-5.6 AF-P. Maximum aperture is f/3.5 but it shifts gradually from f/3.5 at the wide end to just f/5.6 at the longer focal lengths. It can be identified by column as well, like:Nikon 50mm 1:1.4G(Max aperture f/1.4). Nows lets get into the details: 1. What is focal length: Focal length is the distance from the center of the lens to the imaging point (focal plane) where the light for the image is collected. When a lens is described as a "50mm lens," it is referring to its focal length. Different focal lengths create different levels of magnification and change the viewing angle of the resulting photograph. As the focal length value decreases, the ...
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HDR photography and What is Auto bracketing | Become a photographer with Shubham Part-4

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What is HDR photography High Dynamic Range imaging How HDR work Instead of just taking one photo, HDR uses three photos, taken at different exposures. And combine all them together into a single photo. Over exposed Normal Under exposed When you should use HDR Landscapes : Big landscape photos usually have a lot of contrast between the sky and land, which is difficult for your camera to deal with in just one photo. With HDR, you can capture the sky’s detail without making the land look too dark, and vice versa. Portraits in sunlight : We all know that lighting is one of the most important aspects of a good photo, but too much lighting on someone’s face—like harsh sunlight—can cause dark shadows, bright glare, and other unflattering characteristics. HDR can even that all out and make your subject look better. Low-light and backlit scenes (see above): If your photo is looking a little too dark—which often happens if your scene has too much backlight—H...
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HTTP2 vs HTTP1

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In 2015, Internet Engineering Task Force (IETF) release HTTP/2, the second major version of the most useful internet protocol, HTTP. It was derived from the earlier experimental SPDY protocol. SPDY is a deprecated open-specification networking protocol that was developed primarily at Google for transporting web content. SPDY manipulates HTTP traffic, with particular goals of reducing web page load latency and improving web security Request multiplexing HTTP/2 can send multiple requests for data in parallel over a single TCP connection. This reduces additional round trip time (RTT),  making your website load faster  without any optimization, and makes  domain sharding  unnecessary. Header compression HTTP/2 compress a large number of redundant header frames. It uses the HPACK specification as a simple and secure approach to header compression. Both client and server maintain a list of headers used in previous client-server requests. Binary Protoco...
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