How to save photos so as not to turn yellow?

The causes of yellowing (or fading) of photos are: ultraviolet (direct sunlight), humidity and high temperature. Therefore, as long as the above reasons are avoided as much as possible, photos can be preserved for a long time.

The specific general preservation is to insert photos into acid-free photo album bags and put them in dry and dark places.

Conditional can be put into an acid-free photo album, put into a fresh-keeping bag, the extruded air is sealed with transparent glue, and then stored in a special thermostat or refrigerator (freezer).

Another method is to scan the negative and carve it into a CD for storage, as mentioned upstairs. However, this method will lose the photo elements.

For photographic negatives and important photos, most members of our photography association are used to the second method. Photographic digital files adopt the latter method.

* * * See above.