The 0.5x label on ultrawide cameras means the camera captures a wider scene using about half the focal length of the main lens. The x value shows the zoom level, with 1x being the normal field of view from the main camera. A 0.5x lens zooms out, fitting twice as much into the frame, giving you that ultrawide perspective.

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Differentiate between theresolving powerand magnifyingpowerof a lens

The 0.5x lens is perfect for group selfies where you don't want to stretch your arm or rely on a selfie stick. The angle makes it easy to fit everyone into the frame. It's useful for family photos, hangouts, or team shots.

Taking a 0.5 selfie is simple as long as you have the right tools. You'll need a smartphone with an ultra-wide-angle camera, which is almost always part of the back camera system rather than the front camera. Since that's the case, you'll likely need to use the rear camera, meaning you won't see the screen while taking the shot unless you have a foldable phone with an external display, such as the Google Pixel 9 Pro Fold. Here's how to do it:

Resolving powerof microscope

The 0.5 selfie, pronounced point-five, gained popularity after Apple introduced the Ultra-Wide camera lens with the iPhone 11. It uses a smartphone's ultra-wide-angle lens, which captures a wider shot than traditional selfies. The trend has become common on social media platforms popular with Gen Z, such as Instagram and TikTok. The selfie trend has even caught the attention of celebrities, influencers, models, and other public figures.

It is located at the top of the microscope, and the ocular lens or eyepiece lens is used to look through the specimen. It also magnifies the image formed by the ...

In practice, ultra-wide cameras work best for landscape shots, covering a larger area with minimal distortion. However, the closer you get to a subject, the more fish-eye effect you'll see, where things near the lens appear stretched or warped. The arms look ridiculously long, and the person closest to the lens has a goofy, stretched-out face.

Resolving power, or resolution, is the smallest distance between two separate points of an object, when viewed with an optical instrument, that can still be seen as distinguishable. A microscope's resolution limit, d, can be found by the following formula: d = 0.61 λ / NA, where λ is the wavelength of light coming from the object, and NA is the numerical aperture. (This is called the Ernst Abbe formula)

Difference betweenmagnificationand resolution A Level

Ultra-wide-angle cameras give you a different look compared to standard or zoom lenses. Ultra-wide cameras came out with the LG G5 in 2016, but Apple's iPhone 11 made them mainstream. These days, whether you have an iPhone or an Android, most phones come equipped with an ultra-wide lens, so snapping 0.5 selfies is easier than ever.

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Relationship betweenmagnificationand resolution

Using a 0.5x lens at public events helps you capture the entire experience in one shot. This way, you include your face and the energy of the crowd, the stage, and the surroundings.

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For the best 0.5 selfie, hold the camera slightly above eye level or experiment with lower angles to create a more dynamic shot. Keeping the camera close exaggerates facial features and creates a fun, distorted look while holding it at arm's length provides a more balanced composition.

When you reach the summit, the 0.5x lens is great for capturing you and the surrounding landscape. This wider shot includes the full scope of the view behind you, giving a full sense of the moment.

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The popularity of the 0.5 selfie can be linked to the many trends that have seen Generation Z rebel against the picture-perfect aesthetic. Given the rising popularity of photo dumps and apps like BeReal that ban editing and filters, the 0.5 selfie has a similar authenticity. With social media often dominated by flawlessly edited images, especially with generative AI in the mix, it's refreshing to see a trend that favors a genuine, unfiltered approach.

When visiting famous landmarks, the 0.5x lens captures you and the surrounding architecture in detail. Whether you're standing before the Tower of Pisa or New York's Lady Liberty, this lens fits the entire structure in the frame. To improve the effect, position yourself slightly off-center, allowing the landmark to dominate the background.

Apart from being a social media trend, snapping selfies with a 0.5x lens gives you more than a cool effect. This wider perspective provides context to your photos by showing off more of your surroundings. Here are a few photo ideas.

Magnificationof microscope formula

Resolving power (Page 2) Resolving power, or resolution, is the smallest distance between two separate points of an object, when viewed with an optical instrument, that can still be seen as distinguishable. A microscope's resolution limit, d, can be found by the following formula: d = 0.61 λ / NA, where λ is the wavelength of light coming from the object, and NA is the numerical aperture. (This is called the Ernst Abbe formula) "Proof" of d = 0.61 λ / NA: let: λ = wavelength u = angle of the cone of light coming from object u' = angle of cone of light forming image n = refraction index of object m = magnification NA = numerical aperture d = distance between two points in the image d = 0.61 λ / (m tanu') (1)* ** m = n sinu / sinu', thus m sinu' = n sinu = NA However, tanu is approximately sinu when u is very small. Therefore, m tanu' = NA (2) Substituting (2) into (1): d = 0.61 λ / NA *this formula is derived in "Theory of Optical instruments" ** all = not strict equalities but approximations Note: A detailed proof of this formula can be found in "Theory of Optical Instruments"pp53-54, 69 & "Geometerical Optics" pp99-100, 125. However, to understand these proofs a high level of Mathematics is required The resolving power increases when d, the minimum distance that can be seen between two points in the image, decreases. Thus, according to the formula d = 0.61 λ / NA, the resolving power can be increased in two ways: decreasing the wavelength, λ (ie by using filters) increasing the NA. As stated earlier, NA = n sinu. Thus, NA can be increased the following ways: increasing the refraction index, n (this can be done by adding oil to the object) increasing the angle of light coming from the object, u The limiting angle of resolution can be decreased when: the diameter of the lens, b, is increased decreasing the wavelength, λ (ie by using filteres) Note: Theoretically, the largest value of u should be 90 degrees (assuming the lens was large enough); however, in practice, the maximum view is only about 71.8 degrees (ie sinu = 0.95). Even though 71.8 degrees is the maximum angle that can be obtained, it is every difficult to achieve such a high u since equipment and environment must be ideal. What is the limit of resolving power using a light microscope? Let NA = 1.4. The resolving power depends on the colour (or wavelength) of light. If looking at green light (the colour eyes are most sensitive to), λ = 500nm, thus: r = 0.61 x 500nm / 1.4 = 218nm If using blue light (which has the smallest wavelength), resolution is: r = 0.61 x 400nm / 1.4 = 174nm If using red light (which has the largest wavelength), resolution is: r = 0.61 x 700nm / 1.4 = 305nm So, the range of "best" resolution is about 200nm to 300nm Notes: the wavelength of visible light ranges from 400-700nm A distance of 1/3 λ between two objects will have no resolution.   An electron microscope has a better resolution since electrons have a shorter wavelength than light. In fact, the highest resolving power of an electron microscope is about 0.1nm. This is about 1000 times better than that of a light microscope! An increase in magnification does not help you see finer details when resolution is at its max since there is no detail to be seen. In fact, brightness decreases when the magnification increases so a greater magnification may hinder the resolution of the image.

Focal length refers to the distance between the lens and the image sensor. A shorter focal length allows the camera to capture more of the scene in a single shot. In contrast, telephoto lenses, with longer focal lengths, zoom in to capture details from a distance. The ultra-wide lens bends the light from different angles, producing a broader view but sometimes creating a slight distortion at the edges, often called a fish-eye lens effect. This effect gives the 0.5x selfie its distinctive look, especially when shooting close to the camera.

Because of this, you wouldn't typically use the 0.5x lens for standard portraits or everyday photos, but it adds a playful vibe that makes these selfies way more fun to take and share on social media.

Magnificationand resolution of electron microscope

The 0.5x lens works well for selfies where your outfit plays a key role in the image. This is useful when wearing pieces that blend or stand out from the background. This wide perspective captures your clothing and the surroundings for a balanced view of the scene. By placing yourself in scenic backdrops, like an urban setting, a lush garden, or minimalist interiors, you can emphasize your style within the context of the broader scene.

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Magnificationand resolution of microscope

Resolving power vs magnificationmicroscope

The resolving power increases when d, the minimum distance that can be seen between two points in the image, decreases. Thus, according to the formula d = 0.61 λ / NA, the resolving power can be increased in two ways:

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Oct 18, 2024 — The stage of a microscope is the flat platform where the slides containing specimens are placed for observation. It is a pivotal part of the ...

Note: Theoretically, the largest value of u should be 90 degrees (assuming the lens was large enough); however, in practice, the maximum view is only about 71.8 degrees (ie sinu = 0.95). Even though 71.8 degrees is the maximum angle that can be obtained, it is every difficult to achieve such a high u since equipment and environment must be ideal.

To use it as a magnifying glass the object gets inside the focal length of the lens and it switches from producing a real image (the inverted ...

What is the limit of resolving power using a light microscope? Let NA = 1.4. The resolving power depends on the colour (or wavelength) of light. If looking at green light (the colour eyes are most sensitive to), λ = 500nm, thus: r = 0.61 x 500nm / 1.4 = 218nm If using blue light (which has the smallest wavelength), resolution is: r = 0.61 x 400nm / 1.4 = 174nm If using red light (which has the largest wavelength), resolution is: r = 0.61 x 700nm / 1.4 = 305nm So, the range of "best" resolution is about 200nm to 300nm

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Gen Z is no stranger to the fast pace of technology. They've grown up surrounded by fast-evolving technologies like camera smartphones, social media, and artificial intelligence, so they keep up with new trends. One photo trend that stands out in their selfie game is the 0.5 selfie. This unique photography style creates fun, distorted angles. If you want to try one of these selfies, we include everything you need to know in this tutorial.