Extract the nickel, cobalt and manganese mixture. According to the China Industry Network, battery recycling of China Conch Venture Holdings Co., Ltd. can refine mixtures of nickel, cobalt and manganese. It uses “CKB” technology to pre-treat waste lithium batteries to produce black powder, copper, aluminum and others. Products, fully realizing battery recycling.
This question must be very important to you,
Please answer your question seriously.
Actually, I personally feel that the difference between these three machines is really not small, and it shouldn't be difficult to make a choice:
1: First consider the 450dVS1000D, the 450d has spot metering, but the 1000d does not. This function is more important for taking portraits. That doesn't mean you can't take portraits without spot metering, but I have it anyway. takez portraits; the center focus accuracy of 450d is f2.8, the same as 30D, 40D, 5D, etc., the center focus accuracy of 1000D is f5.6, the same as of the 300d, 350d, so the 1000d is prone to poor focus. when using a large aperture lens such as 50mm 1.8, that is, blurry, but there is basically no difference when using a sleeve; the 450d sensor has 14-bit color, the 1000d has 12-bit color, and the 450d has one color. performance is more delicate; the 450d feels a little better than the 1000d; The battery capacity of the 450d is almost half that of the 1000d. There are many other differences, such as continuous shooting speed, number of focus points, etc. Personally, I think these issues are relatively minor.
2: Canon VS Nikon, this choice mainly depends on what you are focusing on. The necktheir from Canon is more suitable for shooting portraits, while Nikon is more suitable for shooting landscapes. Additionally, the D60 cannot use 50mm1. 8 etc. without ultrasound. Engine plans. But there is nothing wrong with the sweater. Additionally, the D60 feels better than the 1000d, which is similar to the 450d.
So with such a big difference, it shouldn't be difficult to make a choice~ Haha
Implementing framing means letting the LCD display the landscape to be photographed , just like a card camera, but this technology is not mature enough on SLRs and can only be used in special modes, and the focus and metering time are not coordinated, you don't so you don't have to worry too much about this function. --