How to maintain a digital camera

The lens is like the human eye of a camera. I always see posts asking such questions, and now they all get together for unified discussion.

First of all, the correct use of the lens. Lens is not a simple lens combination, but also contains many electromechanical structures, such as aperture mechanism. Focusing mechanism, inter-mirror shutter mechanism, etc. Therefore, mastering the correct use of lens is the basic skill of every color friend.

1, temperature change. Especially from the relatively high temperature->; Low temperature. For example, from indoor to outdoor in winter and into caves in summer, the lens is prone to fog. Solution 1: wrap it in a plastic bag before temperature conversion, and take it out after the temperature changes and the camera naturally changes temperature. Method 2: Take a quick shot, adjust various parameters in advance and take them out. The sooner the better.

2. At extreme temperatures. Two situations:

Very high temperature, in this case, dc will have many problems, such as ccd overheating, lens mechanical parts will flow oil, semi-solid lubricating oil will become as thin as water at room temperature, which will pollute the lens lightly, and even these institutions will go on strike. Solution a is of course-don't shoot! (ahhh, don't hit me! ) b, refer to the above method 2.

The temperature is extremely low. Although the lubricating oil may freeze, my experience is that electrical failure is the main problem. Especially for users who use alkaline batteries, alkaline batteries will hardly discharge in sub-zero environment. Users of lithium batteries should not be too happy. There are countless lithium batteries lying in Harbin Ice Lantern Festival every year. The solution is to refer to the above two items.

What's with the wind, sand and humidity? Just put the camera in a safe place, take it out when shooting, and put it away as soon as possible, depending on your skills.

Storage:

It is best to buy wet "expensive" (cabinets), and everyone knows that the characteristics are expensive! One is above 1k, but if you use DSLR, buy it. The cabinet usually comes with a hygrometer, which has the best effect.

The second one is the drying cylinder of the laboratory that I bought at school before. The effect is also first-class and the service life is the longest (of course, it was smashed out). The disadvantage is that it is ugly at home.

Once again, plastic oven, there is nothing to say, one price for one product, the effect is also good, the bottom choice.

Some friends use self-sealing plastic bags to pack it, but it has a short life. None of them have any money. If they are broken, replace them. My sister's dc wanted to enter my drying cabinet, so I sent it away in a self-sealed bag.

To dry the material, you can take a bottle of color-changing silica gel in the laboratory of the unit, and the blue one will be fine. If it turns red, it turns blue as soon as the fire turns in the microwave oven. Quicklime works best, but it can't be reused. Another economic option is that dried old newspapers are also hygroscopic. If you use glass drying cylinder, a good choice is to use concentrated sulfuric acid, which is absolutely first-class in hygroscopicity and very durable.

clean

The cleanliness of the lens is very important. The usual method is blowing, of course not blowing with your mouth. You need to blow balloons, not too advanced. The red ones sold in the reagent shop are enough, a few dollars each, and I will use this myself. However, I don't mind you paying more than 300 yuan for German goods. The correct posture is to hold your thumb on one side and the other and swing your thumb as fast as possible. When you pinch, you will find that the air hole is constantly swinging, so that this swing is as close to the lens as possible, and the air flow "sweeps" the lens surface at the highest speed.

clean

The lens is like the human eye of a camera. Nowadays, the lenses are all coated with multi-layers. No matter whether they can be wiped or not, there is not much imaging if the stains are not heavy. Please remember that every mirror cleaning is irreparable damage to your coating.

The first is the lens brush with the least damage, but you must buy the best. Domestic products will lose their hair and are not recommended.

When the above two methods can't remove the lens stains, you need to use the following methods:

1, making cotton swabs. Take a toothpick or a similar small piece of wood and wrap it tightly with clean absorbent cotton so as not to lose your hair.

2. Observe the severity of the stain. If it is not deep, wipe it after breathing.

3. If it is serious, mix analytically pure alcohol and analytically pure ether at a ratio of 3: 1 to make a wiping solution, and dip a cotton swab in it to wipe it.

The damage caused by the above methods to the lens is: rubbing liquid >; > Breathing is obvious, and the damage of wiping liquid is far greater than breathing. Please be careful.

Operation: Look at the direction of the stain, hold the camera steady with your left hand, hook the edge of the lens with the little finger of your right hand, hold the cotton swab with your thumb, forefinger and middle finger (follow the brush-holding technique), and do the woodpecker-like action at the stain (and only at the stain). The specific operation varies with the technology of the wiper.

Be careful not to trust any so-called imported "lens water" easily. Many friends' shots were destroyed under this inexplicable lens. In fact, the really effective oral "lens water" I have seen is similar to the formula I mentioned above. I learned this recipe from a collector.

There are also two folk remedies, which are said to have a good effect. I have never tried it, so I heard them say:

1, dip it in saliva, because saliva contains water and lysozyme:)

2. Drink half a catty of high-alcohol liquor before wiping, and then wipe after breathing. _ The effect depends on your capacity for drinking.

But at least the above formula is better than suede and lens paper. The lens water is much better.

Personally, I think suede is useless I suggest you rub it with your hands. Really, the texture of any fur is not as good as human living skin (of course, there are calluses)! Washing hands with alkaline soap is always much better than suede. (But cut off your nails first! ) I use this method to clean plastic LCD.