How to take photos inside a cave

How to take photos in caves

The formation of caves is the result of long-term dissolution of groundwater in limestone areas. Insoluble calcium carbonate in limestone can be converted into soluble hydrogen carbonate by the action of water and carbon dioxide. calcium. How to take pictures in the cave? Let me teach you from the travel website!

Cave photography requires preparation in advance:

1. A tripod is a necessary auxiliary tool. You need to shoot at a slow speed in the cave because it is difficult to hold the camera steady, so you can use a tripod to shoot.

2. There are usually decorative lights in caves, so when taking photos, be careful to avoid direct light shining on the lens and use a lens hood.

3. The humidity inside the cave is generally high, and there is a significant temperature difference between the inside and outside of the cave. Especially in winter, a layer of water vapor will often be cast on the lens after the camera enters the cave. The way to prevent this is to seal the camera with a plastic bag before entering the hole, and then take it out for use 30 minutes after entering the hole. (If you don’t have time, be sure to bring a lens cloth or something that can wipe the lens after entering the hole. Be sure to wipe the lens before shooting, otherwise the viewfinder will be blurry.)

4. Ten million Do not use flash, otherwise the lighting effects in the cave will not be captured.

5. Use a small aperture value to ensure sufficient depth of field. It is best to use manual focus.

How to photograph the scene inside the cave:

1. When photographing the wonders of a cave, you usually choose a place where the images of stalactites are concentrated, or to express the ingenious, magnificent and strange scenes, or to express specific Moving images, such as stone figures, stone beasts, etc.

2. Use ambient light. Because generally caves for sightseeing are illuminated, and the stalactites that focus on visualization are also decorated with colored lights. Although these lights are limited, they can evenly illuminate and show the layers in the cave, distinguishing the image of the main stalactites. If you choose a suitable shooting position, stabilize the camera on a tripod, and use the T or B door for a longer exposure, the photos you can take are still acceptable.

3. After setting up the camera, observe the surrounding environment, adjust the aperture to F4 or F8, and control the exposure time correctly. Due to the different colors of lighting in the cave, overexposure or lack of exposure will seriously affect the film. Pay attention to changes in color temperature and don't put too much faith in the camera's automatic white balance. This is because the color light in the cave is too complex, and the camera will also make misjudgments. Generally speaking, if the film is red, it means the color temperature of the camera is set too high; if the film is blue, it means the color temperature of the camera is set low. Based on watching the film you took, correct the color temperature until the color is restored to be true and satisfactory. You should know that color temperature has nothing to do with the brightness and temperature of the light source, but is related to the pure composition of the color. Simply put, those with high color temperature have mostly blue spectral components; those with low color temperature have mostly red light in the spectral components. These two conclusions are the unshakable basic principles when we correct color temperature.

4. Before framing, consider how to highlight the object to be photographed, and try different angles and viewpoints. If you just want to take photos of this trip, you don’t need to think about how to take them.

Shooting skills:

1. Lens? Bring both wide-angle and telephoto, and hang up with telephoto. (It would be great if you have two bodies or a backup camera like the Panasonic LX3, which can take into account the wide angle, so you don’t have to change lenses when you want to take wide angle shots)

2. Tripod? Must bring, camera Be careful to turn off the lens anti-shake function after putting it on the shelves.

3. A flashlight? You must bring it, preferably a headlamp. If you have time in the afternoon, you can get one.

4. Rain cover? You should bring it. I just checked the weather forecast today. It is 8-13 degrees. The temperature in the cave is 17/18 degrees all year round. The temperature difference is not big and the camera will not condense, but it still needs to be To prevent water splashing, Yishui Grand Canyon has rafting, so be prepared. Now I really regret that I should have spent more than 1,000 yuan to buy 40D (I am currently using 450D).

5. Light meter? Not yet. Let’s look at the histogram instead. Aperture priority shooting, increasing or decreasing exposure based on the histogram.

6. Aperture? Depending on the subject of the photo, try different apertures.

7. ISO? 100, since using a stand, the focus is on image quality, and the exposure time is not bad. No need for high ISO noise reduction.

8. White balance? Incandescent

9. Style? Reliable

10. Flash? Do not turn on, use built-in flash to fill in when taking portraits.

11. Drive mode? Single shooting, wire control, mirror lock-up shooting.

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