一、什么是“70-200mm F2.8 DG DN OS Sport ”
Part of the "Sports" series, the SIGMA 70-200mm F2.8 DG DN OS Sports lens boasts high resolution across the entire zoom range, making it a rugged, dust- and splash-resistant lens that is suitable for shooting a wide range of subjects, including sports, wildlife, portraits, landscapes, and documentaries thanks to the F2.8 lens.
二、70-200mm F2.8 DG DN OS的特点
The SIGMA 70-200mm F2.8 DG DN OS Sports has high image quality from the wide-angle end to the telephoto end, from the center of the screen to the periphery. The lens structure is 20 elements in 15 groups. It uses 6 pieces of special low-dispersion glass FLD and 2 pieces of SLD glass to achieve clear and high resolution.
It is smaller and lighter than the previous model, with a maximum diameter of 90.6 mm, an overall length of 205.0 mm, a weight of 1,345 grams, and a filter size of 77 mm. In addition, the lens uses an internal zoom system, and the overall length of the lens does not change even when zooming, so the balance with the camera hardly changes depending on the focal length, ensuring comfortable shooting.
Autofocus has also been significantly improved. By moving the two focusing lens groups in opposite directions, the lens movement is halved, and by driving the high-power linear motor HLA (High Response Linear Actuator), a faster focusing speed is achieved.
In addition, the stabilization function has become more powerful. The anti-shake algorithm OS2 achieves a correction effect of 7.5 stops at the wide-angle end and 5.5 stops at the telephoto end, and thanks to the latest algorithm, the shutter can be released without hesitation even in low-light scenes, and there is an image stabilization mode that is perfect for panning shooting, so you can shoot moving subjects with confidence.
The "SIGMA 70-200mm F2.8 DG DN OS Sports" is equipped with various setting switches on the side of the lens barrel so that the photographer can focus on the subject. There are restrictions on focal length, etc., so you can take the photos you want. Plus, the tripod mount is Arca-Swiss compatible, so you can quickly attach it to a compatible head or remove it.
Since this lens is from the "Sport" series, it is of course dust and splash resistant, and the front surface of the lens is also coated with a waterproof and stain-resistant coating. In addition, it is compatible with the L-mount telephoto attachment, so it can be said that it will meet your expectations even in scenes where you want to introduce distant subjects.
3. High-definition bokeh effect
This lightweight 70-200mm lens delivers sharpness, F2.8 brightness, and smooth front and rear bokeh across the entire zoom range, making photography a pleasure.
摄影器材：SIGMA fp + 70-200mm F2.8 DG DN OS Sports 摄影环境：F5.6 1/250秒 ISO 100
摄影器材：SIGMA fp + 70-200mm F2.8 DG DN OS Sports 摄影环境：F2.8 1/400秒 ISO 100
The aging tabletop, the dimly lit metal frame, and the texture of the floor tiles are all clearly captured, and the neat picture is very attractive.
The front and rear bokeh effect is also good, and the rich bokeh effect is not only suitable for such landscapes and snapshots, but also for portraits.
摄影器材：SIGMA fp L + 70-200mm F2.8 DG DN OS Sports 摄影环境：F2.8 1/200秒 ISO125
摄影器材：SIGMA fp L + 70-200mm F2.8 DG DN OS Sports 摄影环境：F2.8 1/400秒 ISO 100
Focusing attention on the leaves swaying in the wind and blurring the sunlight through the trees in the background also has a beautiful bokeh effect.
摄影器材：SIGMA fp L + 70-200mm F2.8 DG DN OS Sports 摄影环境：F8 1/125秒 ISO 100
The lens produces extremely sharp images from the wide-angle end to the telephoto end. Clear, high-contrast images make such metallic themes particularly eye-catching.
摄影器材：SIGMA fp L + 70-200mm F2.8 DG DN OS Sports 摄影环境：F2.8 1/100秒 ISO 250
The moon rises in the sky and Christmas lights blur in the foreground. With this "SIGMA 70-200mm F2.8 DG DN OS Sports", the focus is accurate, and the stabilization function works well even when shooting in low-light telephoto shots
4. 70-200mm F2.8 DG DN system specifications
Number of lenses: 20 elements in 15 groups (6 elements FLD, 2 elements SLD, 3 elements aspherical elements)
视角：34.3°-12.3°
Number of diaphragm blades: 11 (circular diaphragm)
Minimum aperture: F22
最短拍摄距离：65( W) ) – 100 (T) cm
Maximum imaging magnification: 1:5.2 (at 200mm focal length)
滤镜尺寸： φ77mm
Max. diameter x length: L mount: φ90.6mm x 205.0mm
Sony E 卡口：φ90.6mm x 207.0mm
Mass: L mount: 1,345g
Sony E 卡口：1,335g
Annex:
enclosure
遮光罩 (LH860-01)
三脚架 (TS-151)
前盖 (LCF-77mm Ⅲ)
后盖 (LCR II)
Sigma New Product 70 200 F2.8DGDN Full-Frame Large Ternary Zoom Image Stabilization Camera Lens ¥10999 Buy
5. Summary
This lens is a long-awaited model, so it performs satisfactorily in terms of autofocus and stabilization. The lens produces the best results in a variety of situations, including sports, portraits, landscapes, snapshots, and news reports, and is also very easy to use, so this lens may be a favorite for many photographers. #头条创作挑战赛#