How can I get a sense of film in oil painting?

1. Use tripod and shutter remote control to ensure that there is no movement between pictures (slow shutter) when shooting the trajectory of time lapse.

2. Manual mode shooting ensures continuous and stable exposure of photos. Expose highlights (that is, give priority to the details of the brightest areas).

3. Enough shooting, about 80 to 600.

4. I suggest that not all time stacks need to use every photo material taken in the early stage. If you merge too many photos at once, it may make the picture look confusing, so reduce the number of photos. Usually, you should start with all the photos, get a rough effect, then subtract some selectively and try again. So there is not an accurate number of photos here, and you need to keep trying and finally merge them into a perfect work. Equipment selection: For a plane object like oil painting, it is very important to choose a lens. Macro lens is the best choice whether it is 135 camera or 120 camera, because the image field of macro lens is the flattest of all photographic lenses, which can ensure the balanced picture quality and small distortion, and is most suitable for shooting plane objects. Secondly, the use of polarizers may not be conducive to color reproduction, which is contrary to the purpose of shooting oil paintings. The best shooting time is from 10 am to 4 pm, which is beneficial to color reproduction. However, the color temperature will be higher on cloudy days or under shadows, and post-production can be corrected appropriately.

5. How to place oil paintings: This is very important, and it is also the experience and lesson I got after actually shooting oil paintings. For the first time, I put the oil painting on an easel, and the oil painting was placed almost perpendicular to the ground. After shooting, it was found that the influence of small oil paintings was not obvious, while the phenomenon of bright top and dark bottom and uneven light appeared in large oil paintings.

5. How to measure light: First of all, it should be emphasized that the measurement of oil painting is different from that of general scenery. Oil painting is a plane object, so the light we want to measure is mainly the light perpendicular to the picture. I use the Shiguang 308B exposure meter, which has a special attachment-the plane light receiving window, which is specially used to measure the light ratio of plane objects and three-dimensional objects. Some exposure meters do not have such accessories, but the spherical light receiving window can be retracted. Photometry adopts the method of measuring incident light, which can accurately measure the illumination brightness of the oil painting surface and is not affected by the brightness of the oil painting itself; The brightness of oil paintings varies greatly. Because the metering function attached to the camera is to measure the reflected light, it has little effect on shooting the negative film. Oil paintings that are obviously shallow and deep can be compensated by experience. It is difficult to grasp the appropriate exposure when making a reverse film. As we said before, when shooting oil paintings, we should be faithful to the original works to the maximum extent, which includes both the color and the brightness of the restored oil paintings. Therefore, the exposure meter should be used instead of the internal metering of the camera.