​8 tips for accurate focus in low-light environments

Autofocus speed is an important consideration when buying a camera, canvas prints but with current technology, shooting in low light, autofocus may still be out of focus. With the help of photographer Jim Hamel and my own tips, here are eight tips to help you focus accurately

1. Focus at optical position

What's so good about an all-black environment? So focusing is trying to find a strong source of light where the focus. If light source and composition are different, canvas prints online change to focus accommodation.

2. Focus with edges

Many digital cameras focus on Contrast Detection, so looking for a high Contrast boundary makes focusing easier. When you focus on the light level as mentioned in the first point, you should also focus on the dividing line between the light and dark levels, acrylic prints australia not the center of the light level.

3. Focus and compose first

The above two points are based on the picture is relatively easy to divide things for focus, but the disadvantage is that it may not meet the needs of composition. The user can change the focus of the composition, or half-press the shutter button to focus on the light position close to the distance between the subject and the camera, and then move the frame for composition.

Use a flashlight

There is not enough light to focus and the camera's auxiliary focus light is not strong enough. You can use the flashlight to focus and only turn it off when shooting. But attention torches cannot shine too far, so this method is only suitable for taking pictures at close range. In addition, using a flashlight as an aid to focus can affect the camera's metering, so if you use the af-l (or similar) button, it is also a good idea to separate the metering from the focusing.

5. Manually focus with focusing ruler

For more advanced lenses or lenses with a focusing distance scale, you can first estimate the focusing distance, and then manually focus according to this scale, plus narrow aperture to increase the clear range, you can increase the chance of accurate focusing in low light environment. - www.fsbus.com

6. Increase depth of field

You can get the maximum depth of field by using "hyperfocus", but if this is too complicated for you, photographers recommend using a wide-angle lens, narrowing the aperture, and focusing to an infinite distance when taking a picture of a generally wide landscape, which can already guarantee the same level of clarity.

7. Live View + magnification manual focus

Auto focus is not good, use Live View with zoom screen function for manual focus. However, if this method is taken by hand, it will be tiring. The vibration of the hands will also interfere with the accuracy of visual focus, so if you have a foot frame, use the foot frame. However, if the LCD screen is too dark, you can first turn off the aperture, improve the ISO, until you are finished focusing, then back to the appropriate exposure Settings, and then shoot.

8. Take more shots and check more often

We use digital cameras, so we can shoot more without feeling wasted. So even if the above 7 methods, also might as well shoot more test whether the focus is accurate, lest go home only know shooting failure (focus failure), and no chance to remedy. In very important cases, some people will take more than one photo in a row and manually change the focus position (forward/backward) at the same time. Then they will get several pictures with different focus. Of course, aluminum photo prints the efficiency is relatively low.