How to Adjust the Aperture of Fixed Focus Lens

Question 1: Can the aperture of the fixed-focus lens be adjusted? Yes, the fixed focus lens can't zoom, and its other functions are the same as those of the zoom lens.

Question 2: Hello, there are two adjustment parts of the fixed-focus lens, one is to adjust the aperture and the other is to focus. When you shoot and focus, the camera will focus automatically or you manually turn the lens focus ring, and the number in the window will rotate to indicate the current focus distance. The green number in the top row is "ft"; The white number on the bottom line is "m".

Question 3: How to use the fixed-focus lens and how to match the aperture speed of the camera? Fixed-focus lenses generally have a large aperture and are cheap. If you like blur, a fixed-focus lens is a good choice. In use, its zoom depends on your feet. In order to better control the depth of field, we generally use aperture priority or manual gear. The size of the aperture depends on the spiritual range you need, not the bigger the better. If you shoot someone and their ears are blurred, that's not good. This requires you to contact more and master the collocation of distance and aperture in order to use the aperture accurately.

Question 4: How to adjust the aperture of the fixed-focus lens and zoom lens of SLR has nothing to do with the lens. Please refer to the instruction manual for details.

Among them, shutter priority and automatic stop, aperture can not be controlled manually, and computer program is automatic.

Question 5: How to adjust the aperture of fixed-focus lens and zoom lens of SLR? A fixed-focus lens cannot modulate the aperture because the aperture of the lens is fixed. The aperture of a zoom lens depends on the focal length of the lens. The maximum aperture is also determined according to the aperture of the lens at a certain focal length. The minimum aperture (and all the different aperture values in the period) can only be modulated by semi-automatic or manual exposure of SLR. Semi-automatic gear selection, you pick the aperture value, and the camera automatically modulates the shutter speed and ISO sensitivity. Or it's all manual, and you modulate all the data yourself.

Question 6: How to adjust the aperture of fixed-focus lens and zoom lens of SLR? According to different cameras, the position of aperture priority or manual exposure mode is different on some cameras.

Question 7: How to adjust the aperture of Nikon fixed-focus lenses AF50 and F 1.8 after installation? If you are talking about af50, f 1.8, you need to turn the aperture ring at the end of the lens to F22 and lock it, so that the camera body can control the aperture correctly. If it is AFS 1.8G, you can skip the above steps and use it directly after installation.

The easiest way to adjust the aperture is to give priority to the aperture. Use the combination shortcut key to set the shooting mode to A. For low-end cameras, it means that the rotating wave turns to A, and then use the front impeller to adjust the aperture parameters. If the low-end machine does not have a front impeller, use a rear impeller instead. You can also turn the rear impeller, start the flexible exposure combination in program automatic P mode, and adjust the aperture and shutter at the same time. It is not recommended for novices to use M mode, which is prone to exposure problems.

Question 8: How does the photographer adjust the aperture and shutter? Individuals use manual gears more.

1. First, determine which parameters are needed according to the occasion and the desired effect.

For example, if you want to blur the background, you should turn up the aperture.

You need a large depth of field to shoot the scenery, so turn down the aperture.

To shoot motion, you need a higher shutter to fix it.

If you want to express the dynamic effect through blurring, you need a slower shutter.

For hand-held shooting and snapshots in dark environment, try to use a larger aperture (generally, a higher ISO is needed to use the shutter speed as quickly as possible).

If you want to shoot a star-studded effect, use a smaller aperture.

Generally, when using the sub-factory lens, the maximum aperture is not used, but it is reduced by one level.

2. Look at the exposure indicator.

Now all cameras have TTL metering. If some antique film SLR cameras don't have an exposure meter, you need an extra hand-held exposure meter to measure light.

Turn the aperture or shutter dial on the camera and observe the exposure indicator bar on the display screen or shoulder screen to judge whether the exposure parameters are appropriate. When the exposure indicator bar points to the middle position (0), it indicates that the exposure is appropriate.

3. Further correct the exposure according to the color of the photometer.

Because the exposure meter is based on the reflectivity of ash in 18%, the color will also affect the accuracy of the exposure meter. The light reflection is large, and the exposure measured by the exposure meter is small, so the exposure should be increased. On the contrary, black should reduce exposure.

For example, I decided to use an aperture of f/2.8.

Then adjust the shutter speed. When the shutter speed is adjusted to 120s, the light metering indicator bar shows the exposure just right.

The measured object accounts for a large proportion in the picture, and the color is dark, so slow down the shutter speed to 240s (one step lower), which is almost the correct exposure value.

4. Further modify the exposure parameters according to the creative needs.

For example, if you take a photo with a small fresh style, you need to adjust the parameters to be slightly exposed.

For example, when taking a silhouette, it is sometimes necessary to deliberately dim the exposure to make the photo slightly underexposed.

In a word, it's quite complicated to say, but it's not that difficult to operate in practice.

Practice more and try more, and you will soon master the basic skills of manual exposure.

Question 9: 50mm f 1.8 is a fixed-focus lens. Can the aperture be adjusted? Any lens can adjust the aperture. The aperture of a 50mm f 1.8 fixed-focus lens is f 1.8 to F22, and this range is adjustable.

Question 10: Why can't my fixed-focus lens adjust the aperture size? First, you can adjust the aperture value on the machine. If it is a Canon EF lens, the electromagnetic aperture (EMD) is used, and there is no aperture lever on the lens. Only during the exposure, the aperture will be reduced to the value you set, and after the shooting, the aperture will be restored to the maximum value.

Secondly, you can use the depth of field preview button to preview the depth of field effect under different apertures. Because the single lens reflex camera is full aperture metering, the lens is at the maximum aperture when taking pictures and metering.