There is very little opportunity for digital cameras to specifically photograph moving objects. And almost all of it is used to photograph still life. So close shots are very important. At the same time there is no framing error and how to correct the close-up, but also have a great influence on the success rate of shooting.
The zoom range is the focus of the exam. Shooting scenery, scenes, etc. require focal lengths to be shorter; shooting portraits, products, and still life require focal lengths to be longer. To date, no single camera has met everyone's focus distance requirements.
Digital cameras are electric tigers. Whether the original external power supply is available or not must be considered.
Digital cameras are usually connected to computers. Serial ports are generally used. Serial portability is good and speed is not too slow. It is a good method. USB is very difficult to use. The vast majority of computers do not have this port at all; (It's generally not worth selling.). Far better from the USB, less trouble. However, I think I can use USBB safely after next year. Infrared port is also a good way. Unfortunately, only the laptop has a red port. However, USB may not be a problem next year. Digital camera memory cards can generally be converted to PCMCIA cards through a dedicated adapter that can be used in a laptop computer. There is also a PCMCIA driver that can be installed on a desktop computer. Reading a PCMCIA card is like reading a floppy disk. There is also a new standard of high-speed serial ports: IEEE1394 also began to appear on digital cameras. This interface is extremely fast and you can pass videos on it!
Shutter speed adjustment range, don't worry about it!
There is a hand-focusing camera better. Useful for close-up shots. Such as: SONY FD-7, KODAK DC-260.
Manual exposure is even better! Unfortunately, there are too few such cameras.
Whether the lens can be attached to the front of the lens, whether the caliber is a regular size, relates to whether you can expand its use in the future. This is very important. Should generally choose: 37mm, 43mm, 46mm, 49mm, 52mm this series of
The zoom range is the focus of the exam. Shooting scenery, scenes, etc. require focal lengths to be shorter; shooting portraits, products, and still life require focal lengths to be longer. To date, no single camera has met everyone's focus distance requirements.
Digital cameras are electric tigers. Whether the original external power supply is available or not must be considered.
Digital cameras are usually connected to computers. Serial ports are generally used. Serial portability is good and speed is not too slow. It is a good method. USB is very difficult to use. The vast majority of computers do not have this port at all; (It's generally not worth selling.). Far better from the USB, less trouble. However, I think I can use USBB safely after next year. Infrared port is also a good way. Unfortunately, only the laptop has a red port. However, USB may not be a problem next year. Digital camera memory cards can generally be converted to PCMCIA cards through a dedicated adapter that can be used in a laptop computer. There is also a PCMCIA driver that can be installed on a desktop computer. Reading a PCMCIA card is like reading a floppy disk. There is also a new standard of high-speed serial ports: IEEE1394 also began to appear on digital cameras. This interface is extremely fast and you can pass videos on it!
Shutter speed adjustment range, don't worry about it!
There is a hand-focusing camera better. Useful for close-up shots. Such as: SONY FD-7, KODAK DC-260.
Manual exposure is even better! Unfortunately, there are too few such cameras.
Whether the lens can be attached to the front of the lens, whether the caliber is a regular size, relates to whether you can expand its use in the future. This is very important. Should generally choose: 37mm, 43mm, 46mm, 49mm, 52mm this series of
Baby Toys,Electric Toy,Car Children
Tianxing Children's Toys Co., Ltd. , http://www.xt-toy.com