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What specifications lens should a SLR camera be equipped with to shoot a beautiful portrait of a "sugar water tablet"? What are the recommended lenses for Canon's fuselage?
I can give some suggestions to the subject,

"Sugar water tablets" need three elements: beauty, skill and good camera.

Therefore, for a sweet film like "sugar water film", the choice of characters is very important, and its own technology is also good, and then it is the requirement of the lens. Ok, direct recommendation

Lens 1:

Just focus on 50mm or 85mm, and the minimum aperture standard is f 1.8, which is basically a beggar's version. Try to start with f 1.4!

Lens 2:

It is 200mm or 300mm fixed focus, and an aperture of f2.0, commonly known as "air cutting machine", is enough.

Let's talk about why next. Because the portrait should be blurred, nothing more than grasping four elements:

The camera is close, the background is far, the aperture is large and the focal length is long.

When it comes to lens selection, it is

Large aperture and long focal length, why not choose a wide-angle lens? Because there will be distortion.

I have answered similar questions before, so here are some!

One is to choose a large aperture.

When the position, subject and background are unchanged, the larger the aperture, the better the blur effect (remember that the larger the aperture, the smaller the F value, because the F value is a reciprocal). To get the maximum blur, open the aperture to the maximum. Let's start a rumor here, too! Some people say that when the aperture is opened to the largest photo, it will be mushy and fleshy. In fact, that was before, and now the mainstream models have basically overcome it. Feel free to drive boldly! For example, in the photo below, the background is blurred by a large aperture.

The second is to have a long focal length.

For example, Nikon has a 200mm telephoto lens with an aperture of 2.0, nicknamed "air cutter", which means that it can completely separate the subject from the background. Why is it so powerful? Because a telephoto lens with a focal length of 200 and an aperture of 4.0 is equivalent to a standard lens with an aperture of 50mm 1.0, while a lens with a focal length of 200 and an aperture of 2.0 is equivalent to a lens with an aperture of 50mm and 0.5. Therefore, the blur effect can basically turn the general lens into slag, but this is not the most powerful, because Nikon also produced 300mm and aperture 2.0. For example, in the picture below, the main body and the background are directly separated by increasing the aperture through a long focal length, and the sugar tablets can be produced when the main body is sweet enough.