The main lens of a camera

1, Canon 40D reference price: 7700-8000 yuan.

Main specifications:

Image sensor: CMOS(22.2* 14.8)

Effective pixel: 1065438+ million.

Lens holder: ef EFS

Sensitivity: ISO 100-3200

Power supply: BP BP-5 1 1A+0A lithium battery.

Volume: 146* 108*73.5

Weight: 740 grams

2. Nikon D3 reference price: 4 1000 yuan.

Nikon D300 reference price: 13000 yuan

Olympus E-5 10 reference price: 6000 yuan.

Olympus E-4 10 reference price: 3700 yuan.

Sony a700 reference price: 8700 yuan

3, professional popular camera-Canon EOS 450D5,000 yuan.

In 2008, Canon introduced a new generation of all-around and popular EOS 450D digital SLR camera, which has 654.38+02.2 million effective pixels, and adopts DIGIC III digital image processor, with a continuous shooting speed of about 3.5 frames per second. The camera is equipped with a new 9-point autofocus system, a 3.0-inch wide-angle LCD and an EOS integrated dust removal system. In terms of shape design, EOS450D continues miniaturization, and its body is light and portable, which is really a good choice for photographers. The main specifications and functions of this machine are as follows:

I. Main specifications of Canon EOS 450D:

Sensor type: CMOS

Sensor size: 22.2mm×14.8mm.

Effective pixel:12.2 million pixels.

Storage media: SD memory card and SDHC memory card.

Sensitivity range: ISO 100- 1600.

Battery: one LP-E5 battery.

Volume:128.8mm× 97.5mm× 61.9mm.

Weight: about 475 grams

Second, excellent continuous shooting function

The continuous shooting speed of EOS 450D is about 3.5 frames per second, and it can take 53 JPEG images or 6 RAW images at a time. This function is very prominent in the same level of SLR digital cameras.

Third, advanced autofocus point system.

EOS 450D is equipped with an autofocus system including nine high-precision focusing points. When using F2.8 or larger aperture lens, the focusing accuracy and focusing ability are greatly improved. In addition, EOS 450D has automatic focusing light source detection function, which makes the focusing performance accurate and stable in the artificial light source environment.

Fourth, the LCD screen that can shoot in real time.

EOS 450D adopts a 3.0-inch 230,000-dot liquid crystal display, and the viewing angle can reach 1.70 degrees, and the screen brightness is greatly improved compared with previous similar cameras.

EOS 450D has a real-time display shooting mode and can shoot directly through LCD.

Five, improve the dust removal system

The newly upgraded EOS 450D has a stronger EOS integrated cleaning system, which can effectively remove dust and avoid the impact of dust on image quality by inhibiting stains caused by dust. EOS integrated dust removal system includes three parts: sensor self-cleaning unit, dust removal function and manual cleaning sensor.

Six, extremely fast start-up speed

EOS 450D has a start-up speed of only 0. 1 sec, a shutter lag of about 90mm, and a viewfinder blank screen time of about 130mm, which can fully meet the requirements of ordinary photographers to open the camera quickly.

The following is a beginner's introduction to SLR digital cameras: 1. Canon 1000 D kit: (body: about 3,000 yuan) +( 18-55 mm is the anti-shake lens) SLR kit: about 3,700 yuan; Second, Nikon D40+AF-S 18-55 SLR digital kit: about 3,000 yuan, an economical and practical camera! First choice for entry! Third, Sony DSLR-α 200k: 2988 yuan (including 18-70mm lens) SLR cameras fell below 3000 yuan for the first time in the history. Four, Olympus E420 (including 14-42mm lens) SLR kit: 3366 yuan.