Anyone who purchases the product in this store, no matter the size of the amount, a glasses cloth or a dust-free cloth can be given.

Photoved, don''''''''t shoot it.

Take the customer service to modify the price.

Glasses cloth: https://item.taobao.com/item.htm? SPM = A1Z10.3-C.W4002-937506458.9.wzumv7&id=45131749095

Dustless cloth: https://item.taobao.com/item.htm? SPM = 0.0.0.0A32LG&id=549018805276

Welcome to shoot.

If you purchase a glass material such as a filter / attenuating / mirror / splitter, please pay special attention:

1. Avoid preserving the filter in a humid, high temperature environment.

2. Avoid the surface of the hardware scratches filter surface and heavy objects.

3. Take the lens to take the finger set or rubber glove, no words, but also to wash and wipe your hands and then take it, the eyeglasses are placed on the lens paper, do not put the surface of rough or hard things, so as not to damage, When you get dust or fingerprint, use cotton swabs or cotton balls to pick a small amount of industrial alcohol or ethanol, gently wipe, do not force, slowly wipe the whole lens in one direction, avoid rush, etc. After drying, put it in the corresponding position.

4. The use temperature of the colored optical filter should not exceed 80 degrees. It requires high temperature conditions. To explain to the seller, only tempered can be used at high temperatures, but it is best not to over 250 degrees to avoid damage to the filter. .

5. The filter is in the use process, avoiding the temperature suddenly lifting, if the temperature difference is too large, can cause the filter to break. Please be careful.

6. Binding of the filter and the instrument or device: If there is a thread on the instrument or device, the filter can be mounted to the corresponding ferrule and then screw it on the device; if there is no thread only the structural member, you can use AB Glue or ultraviolet adhesive stick the filter to the top. If you can communicate with customer service, you can provide relevant guidance.

1. To avoid damage or loss of goods during transportation, please take care of your goods, please do not sign when you receive the goods, such as packaging or item If you have any questions, please contact us in the first time, solve the problem together Thank you for your cooperation!

2. The products sold in our store are guaranteed quality, and the goods will be within seven days.（Subject to signing）Due to quality problems（Do not match the spectral chart, or the lens is damaged）Can be returned.If the customer''''''''s operation error, choose improperly (selected the wrong model or buy a multiple products for testing, it feels inappropriate after the test) or the damage caused by other people for artificial reasons, and will not be returned.

3. When purchasing products, please see the model and parameters, due to the particularity of the product, there is no trial service for the time being, and the return service is not provided, please understand. If the product is required to return, please bear the required shipping, and reach an agreement with the seller, you can return, thank you for your cooperation!

4. All products in our store are real shooting. Due to shooting, camera and computer monitor issues, customers are for reference when purchasing products, mainly for reference and related product descriptions, unclear customers can consult sellers, provide Related technical support.

5. Regarding the problem of modifying the size: Due to the small amount, the modified size can only be handled on the basis of existing size, and how much handmade grinding will have certain tolerances, and there is no machine to do it directly, perfectionist Be cautious, this store does not accept the reason for the rear shape, the shape of the shape is not round or there is a small size, and the difference is given a bad review. Please choose a particularly high customer, please choose to customize or try another way to solve the size of size, our company Unexpectedly, the master took a long time to grind, the customer asked to return, so the thing that hurts the money is trying to avoid it.