Color TestThe lens color test could be done from the following aspects:
1. ** Test using standard color card **:
- Place the color card under uniform lighting to ensure that the lighting conditions are stable and consistent.
- Use the lens to shoot the color card to ensure that the focus is accurate.
- He compared the colors of the photos with the color cards to see if the colors were accurate.
2. ** Colorful Scene Shooting Comparisons **:
- Choose colorful scenes such as flowers, scenery, or artwork to ensure that the light is even and natural.
- Try to use a standard color temperature (such as daylight) for shooting.
- He compared the photo with the actual scene to check if the colors in the photo were real and natural.
3. ** Testing different white balance settings **:
- Shoot the same scene under different lighting conditions (such as sunlight, cloudy days, indoor lighting).
- Use different white balance settings (such as auto white balance, daylight, cloudy, tungsten light, etc.) to shoot.
- Comparing photos with different white balance settings, observe whether the color reproduction is consistent and accurate.
In addition, during the lens color reproduction test, there were some factors that affected the lens color reproduction:
1. ** Color temperature of light source **: Know the color temperature of the light source and the balance color temperature of the white balance setting. When you need to accurately restore the color of the object, avoid shooting under mixed light, because the color of the photo taken under mixed light is difficult to balance.
2. ** Effect of exposure on color **: The exposure of a digital camera has a greater impact on the formation of color, mainly on the amount of exposure. Under exposure, the color would be dark and blue-green; over exposure, the color would be white and the color of the high-density parts would not be saturated; when the exposure was correct, the color would be bright and saturated, with moderate contrast and rich layers.
3. ** The influence of illumination on color **: The object will appear in various colors after being illuminated by light. The change in the proportion of the spectral composition of the light source plays a decisive role in the color reproduction of the object. Generally speaking, after an object was illuminated, the color of the highlight part was basically the color of the light source; the color of the shadow part was greatly affected by the color of the environment; the junction of light and dark was the mixture of its intrinsic color and the color of the environment.
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Exposing the Phenomenon of Color Blindness on CampusI recommend a few super interesting novels. " Campus Cultivation Record: Blue Make-up Beauty ", a fantasy romance novel written by Jin Wanwan. QQ. The main character, Xi Mo, was extremely unusual. She was also an immortal cultivator and a demon cultivator. She could transform from a human into an animal and become a half-adult. In the end, she was still an " ordinary " student on campus. The main character was a woman. Book Group 93180611. " After the Bridal Chamber, I Was Buried by My Wife " was a light novel written by Xiao Fei. The male protagonist Cao Shicheng traveled to another world and had an undying body. After the bridal chamber, he was buried by his wife. Ten thousand years later, he woke up and the world changed drastically. There were many female protagonists and the car was fast. " The Academic Genius 'Library of the Other World " was a work of Silent Night. The male protagonist, Wang Ze, had transmigrated with the Academic Genius System. In a world with cultivators, reading the novel could create a dungeon to fight a BOSS. 'I Became the Great Old Ones' was a science fiction novel written by Sister Bomb. Su Heng was reborn as the Great Old Ones and became the Creator. " The Royal Merchant of the Demon Spirit World " was a youthful campus novel written in the middle of the month. Lu Beibei's university life was extremely strange, and her teachers were not simple.
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What are the recommended novels about face blindness and color blindness redeeming each other?What? Are all the demons on the road to the west my disciples? This novel was super interesting. The protagonist had transmigrated into Chen Xuanzang, and he wanted to get a Buddhist position by going to the West without a cheat. In the end, the little animals that listened to his stories at the Golden Mountain Temple were all demons that traveled to the west, and they even learned cultivation techniques from them. However, the Journey to the West tribulation had changed. The golden-nosed white-haired rat of the Hollow Mountain was super fierce, the king of the Golden Horn of the Pingding Mountain was super funny, and the scorpion spirit of the Kingdom of Women was super sticky. In the end, Chen Xuanzang was surrounded by demons and ascended to the position of Buddha. He was stunned. He did not know when he had taken in a heaven-defying disciple.
One Piece: First Companion Is Tom the Cat was not bad either. The main character, Zhang Da, was also stranded in the pirate world. There was a magic array that could summon characters from another world, and his first companion was Tom the cat. There were many characters in the book, such as Artolia. This book was very funny. Tom the Cat's description was superb, and the opening was very attractive. Although the power system in the later stages was chaotic and some characters were not likable, the overall situation was relaxed and happy. It was a good pirate doujinshi, suitable for readers who liked pirate novels and summoning styles.
There was also " Blind Husband ". The female lead was reborn. In her previous life, she was blind and married the wrong person. She lost her child. After his rebirth, he wanted to walk on Kangtai Avenue, but he later deviated from the control. The plot was very attractive. In " Nightmare of the Steam Age," Sean was reborn and left a legend in a strange world by controlling the power of dreams. In " I'm a Sailor in Liyue ", An Ping's soul transmigrated from Tivat to become a Liyue Sailor and started the Sea King's legendary sea route. There were very interesting stories everywhere.
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Color reaction to test for NaCl3The flame reaction could be used to detect the Na ion in the salt. The flame reaction of the Na element was yellow. The specific operation was as follows:
Method 1 (tweezers-cotton-alcohol method): Use tweezers to take a small ball of cotton and suck up a little 95% alcohol. Squeeze the alcohol on the cotton dry. Dip the cotton with some salt powder (grind it fine) and light it to see a yellow flame.
Method 2 (iron wire method):(1) Take a thin iron wire, wipe one end with sandpaper, and then burn it on the external flame of the alcohol lamp until there is no yellow flame;(2) Dip the end of the iron wire in water, and then dip it in some salt powder;(3) Light a new alcohol lamp (the lamp head and wick are clean, and the alcohol is pure);(4) Put the iron wire stained with salt powder on the tip of the external flame to burn. At this time, there is a small yellow flame on the tip of the external flame, which is the salt flame. If it was a student's experiment, it would be difficult to see the tip of the flame because most alcohol lamps were not clean. It could be changed to a steel wire dipped in salt and placed in any part of the outer flame that had a blue flame. If the yellow flame covered the blue flame, it could be considered that the yellow flame was the salt flame.
In addition, a small amount of AgNO could be added first. If a white deposit was produced, it might be salt. However, this method could not identify salt alone. It also needed to be combined with other methods such as flame reaction, because salt would also produce a similar phenomenon. The two could be further distinguished by flame reaction. The yellow flame was salt.
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1. clouds up, semi clear 2. light yellow after increasing H+ in solution turns green after adding NaOH drop by drop 3. light red-brown after adding 25 mL KSCN 2nd test fizzed but barely changed color 3rd test darker red-brown 4th test neutralized, cleared up, white ppt on bottom ETHANOL TEST pink 1. control turns pink after adding H20 2. turns blue 3. NaCl doesn't dissolve at first, settles on bottom, later turns a bit more purple 4. gradient of purple/ pink/ white ppt1. clouds up, semi clear 2. light yellow after increasing H+ in solution turns green after adding NaOH drop by drop 3. light red-brown after adding 25 mL KSCN 2nd test fizzed but barely changed color 3rd test darker red-brown 4th test neutralized, cleared up, white ppt on bottom ETHANOL TEST pink 1. control turns pink after adding H20 2. turns blue 3. NaCl doesn't dissolve at first, settles on bottom, later turns a bit more purple 4. gradient of purple/ pink/ white ppt