About maintaining the camera lens

If possible, the camera bag should be as large as possible and as high as possible, so that the camera and lens can be connected and stored in the camera bag. It is best to hang the lens and the camera together as an ordinary lens. Once there is a need to shoot, you can take out the camera and shoot directly. In addition, another advantage of hanging the lens is that it can reduce the number of lens changes and reduce the chance of dust entering the camera and the lens behind the lens. It should be noted that if there is a large and heavy lens in the camera bag, it is best to add a U-shaped lining interlayer to support the lens to prevent the camera bayonet from being squeezed by the gravity of the lens when carrying it.

2. Pay attention to the direction and method of lens placement.

When putting a camera with a lens or a single lens in the camera bag, pay attention to the direction of the lens, and don't put the lens directly outside the camera bag, which will easily make the lens directly impacted. At the same time, don't put hard and sharp things in the camera bag, such as Swiss army knives. If you must, put hard things in the sorting bag of the camera bag.

Prepare protective cover

It is best to prepare a rubber protective cover for the camera and try to match the lens with a soft rubber hood, so that the anti-collision and impact resistance are better. When not in use, it can also be squeezed inward and wrapped on the lens after folding, which also plays a certain role in shock absorption. Hakuba's silicone lens protective cover can also wrap the lens, so that the lens is three-proof and can be used normally.

4. Install ultraviolet glasses or special protective glasses.

Don't be stingy with small money. It is very necessary to install a UV mirror or a special front protective mirror for each lens. This kind of lens can not only filter ultraviolet rays, but also prevent dust from falling directly on the lens surface. At the same time, it has obvious effect in preventing accidental bumping.

5. Storage method of single lens

When putting a single lens into a camera bag, first lock the hood, cover the front and back covers, and then put the big head (usually the front part) of the lens down instead of the back cover, so as to reduce the pressure of the lens by its own gravity. When the camera is not shooting, the focus ring of the lens should be adjusted to infinity. At the same time, the lens barrel of the zoom lens should be rotated to the shortest state. When the lens is not used, the lens with the lens lock button should also use the lens lock button to prevent the lens from accidentally protruding and being scratched.

6. Buy tripod rings with heavy lenses

When shooting with a heavy telephoto lens, one leg of the tripod should be placed under the lens, so that even if the tripod is tilted, it is not easy to directly break the lens. At the same time, it is best to prepare a special tripod ring for the lens heavier than the camera, and then directly connect the tripod head with the tripod ring of the lens, so as to balance the force on the camera bayonet and prevent the camera bayonet or the back of the lens from breaking due to excessive force.

Make sure that the quick loading plate is locked on the tripod ring of the camera or lens. If two cameras use tripods or cameras and telephoto lenses use tripods, it is best to install quick-loading plates on the tripod rings of each camera or lens and lock them. In this way, the speed of replacing the camera or lens is much faster, and the wear of the quick-loading plate and the camera screw hole is reduced. Because of frequent replacement of the quick-loading plate, the installation of the quick-loading plate may be unstable, and the camera or lens may fall off.

7. prepare a photographic vest

The advantage of the photographic vest is that it can be used as a camera flash, lens, various connecting wires, memory cards, etc. It's all removed, so you can put it in your pocket for the time being, thus avoiding the loss of these small accessories because of misplacing. It is much more convenient to put on a photographic vest when changing lenses and accessing equipment. You should try to choose a vest with more photography pockets and lenses that can be put in, and also consider breathability and firmness. Vest pockets should have curtains or zippers to prevent equipment from falling off.

8. Don't breathe when changing lenses in winter.

When changing lenses outdoors in cold weather, the hot air from the nose and mouth should be prevented from frosting on the reflector. So don't let your nose and mouth get too close to the lens when changing the lens. If possible, install an anti-fog eye mask on the eyepiece of the viewfinder to prevent the sweat from the forehead and eyes from condensing into dew on the eyepiece and affecting the viewfinder.

In addition, the sharp temperature difference will lead to the condensation of the camera, which may lead to the short circuit between the lens and the electronic components of the camera, and may also induce the lens lens to produce mold. Dew condensation may occur when you enter the room from cold outdoor in winter, or when you walk from air-conditioned indoor to hot outdoor in summer. The camera should be wrapped tightly in a plastic bag or carried in a camera bag until the temperature inside and outside the bag is the same after a period of time. Do not touch the exposed contacts of the camera and lens (such as hot shoe socket, handle contact, cable release interface, PC synchronous terminal, etc.). ) Operate by hand in a dry environment in winter to avoid electrostatic breakdown of the circuit.

9. Change the lens less in rainy days and use waterproof camera bags.

Try to avoid changing the lens in rainy days to prevent rainwater from entering the camera body and lens, and immediately put the equipment back into the camera bag when not in use. In order to be more waterproof, it is best not to use leather material for camera bags and lens bags (leather material is a real moisture absorber, which will "release water" in a dry environment and easily make cameras and lenses moldy), but to use waterproof fabrics such as nylon or tarpaulin. In addition, the upper cover of the camera bag and the protective cover of the side bag are preferably made of a whole piece of seamless material, and the side edge of the cover should wrap the upper edge of the outside of the camera bag to cover the whole camera bag mouth to prevent rainwater from entering the camera bag through the gap. If there is a zipper on the cover or side of the camera bag, it is best to have a hidden waterproof zipper with waterproof coating. In addition, the camera bag should also have a rain cover, which is usually stored in a hidden interlayer. When it rains or is wet, it can be dug out from the interlayer to cover the whole camera bag.

10. Change the lens by "touching" in a dusty environment.

Minimize the number of lens changes in windy and dusty environments. If the lens must be replaced, put the camera and lens in the camera bag and touch it blindly to reduce the chance of dust entering the equipment.

1 1. General treatment methods for accidental overboard

If the camera accidentally falls into the water, turn off the power first, take out the battery after taking it out, and then dry the water in the gap. Remove the lens from the camera, open the battery cover of the camera, and blow dry the camera and lens with a hot fan. Then find a repair point nearby, take apart the camera body, clean it and dry it. It should be noted that before the interior is completely dry, do not power on the test, otherwise water stains may cause a complete short circuit and completely damage the camera.

In addition, many cameras have special diving shells, which are convenient for diving photographers to take pictures in the water. Because this kind of shell has high pressure resistance, waterproof and dustproof functions, it can not only be used for diving, but also protect cameras and lenses in wet or rainy and snowy weather.

12. Method of storing lenses in humid environment

In humid environment, you can temporarily wrap the lens in a sealable plastic bag, put silica gel or food desiccant in it to absorb water, and then store it in the camera bag.

13. Taboos for cleaning lenses

Don't blow the camera directly with your mouth. The result of direct lens blowing is not to blow the dog's head into a bull's head, but to let the saliva corrode the coating of the lens. Don't touch the lens directly with your hands. Sweat and grease on the skin are not good for coating, let alone wiping the lens with toilet paper, because the lens will become a big face.

Generally, a lens that has been removed and repaired will have a certain image in optical quality and focusing accuracy. Therefore, if there is mildew or dust on the lens, don't rush to repair it as long as it doesn't affect the imaging. In the process of shooting, if the lens is stained with fingerprints and oil stains, don't dry wipe it with lens paper or suede, which will easily damage the lens.

14. Taboos for handling lenses

When loading and unloading the lens, you should hold the lens barrel that can't rotate, and don't hold the focus or zoom ring and aperture ring to load and unload the lens, so as to avoid potential physical damage to these variable mechanisms.

15. Get into the habit of turning on the camera with the lens.

When using a heavy lens, we should get into the habit of holding the lens-driven lens instead of the camera-driven lens, so as not to affect the accuracy of the lens bayonet.

16. Don't shoot with strong light.

When shooting some objects with strong light sources (such as the sun and neon lights), the telephoto lens is easy to gather light, and the light intensity may be very strong at this time. Excessive light may burn people's eyes through the viewfinder, and may generate strong charges on the photosensitive device, which has some potential effects on the life of the photosensitive device. Therefore, people should squint away from the viewfinder to observe the brightness of the light, and then slowly approach the viewfinder if it is acceptable. In this kind of strong light, we should try to use a small aperture and a high shutter speed to shorten the time and intensity of the photosensitive device being irradiated by strong light.

17. Do not disassemble and maintain the lens at will.

Don't try to disassemble and repair the lens yourself. People who have no experience in lens installation may scrap the lens even if they have a full set of special tools for lens disassembly. Do not add lubricating oil to the lens or camera at will, otherwise it will easily lead to equipment damage.

18. lens storage skills

When the lens is not used for a long time, it should be stored in a clean, cool and dry environment. The relative humidity of the storage environment should preferably be lower than 60%. If the humidity is too high, the camera should be stored in moistureproof box. Don't store the lens in closed safes, wardrobes and bookcases in the rainy season in the south. Don't put the lens in the leather camera bag, lens barrel and lens bag, because the bristles of leather articles are easy to absorb moisture, and then they are released after drying, while wooden articles are also easy to absorb moisture. Try to avoid using leather, wooden cases and sleeves to store lenses for a long time. Besides, the drier the lens, the better. The most suitable humidity for camera storage is about 40% -50%. If the humidity is too low, sometimes the lubricant on the parts in the lens will dry out, which will affect the lens control. At the same time, too dry may also lead to the rubber opening of the lens focus ring.

In addition, photographic equipment should be stored away from TV sets, radios, speakers, refrigerators, electric fans, microwave ovens, induction cookers and other electrical appliances with strong magnetic fields and strong electromagnetic waves, such as CRT monitors, because strong magnetic fields may magnetize the diaphragm blades of the lens and affect the control. Volatile solvents, such as pesticides, computer cleaners, mothballs and other chemicals should also be kept away from photographic equipment, otherwise volatile substances may stick to the equipment, leading to equipment failure.