Đánh giá sigma 70-200mm f2.8 apo ex dg os hsm năm 2024

Sigma 70-200mm F2.8 APO EX DG OS HSM

Sigma 70-200mm F2.8 APO EX DG OS HSM là ống kính zoom tele chất lượng cao mà hãng Sigma đã chế tạo ra nhằm phục vụ cho nhu cầu chụp ảnh chân dung hay thể thao. Với việc đưa vào rất nhiều công nghệ hàng đầu của hãng cho phép bạn lưu giữ những hình ảnh đặc sắc và thú vị với độ nét cao cùng màu sắc trung thực.

Sử dụng Thấu kính cao cấp

Sigma 70-200mm F2.8 EX DG OS HSM có khẩu độ lớn F2.8 trong suốt dải tiêu cự cho khả năng chụp ảnh trong điều kiện ánh sáng yếu mà không cần các công cụ hổ trợ. Bên cạnh đó khẩu độ lớn làm xóa phong mịnh màng, nâng cao tính sáng tạo với độ sâu trường ảnh một cách dể dàng.

The graph for the distortion in jpg files created with the Sigma 70-200 mm OS 2.8 + Sigma Sd1 Merrill looks as usual for a telephoto zoom lens. In the middle of the zoom range, the lens shows very low distortion and in the extreme zoom positions the distortion is low. Remember that this type of lenses is usually used in forms of photography where distortion rarely or never will be visible. Examples include sports photography and model photography.

Flare

The Sigma lens has a complex design and contains 22 lenses in 17 groups. A design with a large amount of lenses increases the vulnerability towards internal reflections and thus there is a larger probability for visual glare and ghosting in bright light situations. This image is shot at f/5.0The supplied lens hood is great, but you will have to be careful for backlight. Incidentally, this is what we found in the Canon 70-200 mm 2.8 IS II.

Sigma 70-200 2.8 OS Resolution

The resolution expressed in lines / height sensor exhibits in the center at 70 and 135 mm very nice values. Aperture is therefore not necessary. At 90 mm and 200 mm, the center sharpness at f/5.6 just a little better than at f/2.8. The corner sharpness is very good with the exception of 200 mm. That is the difference between the center and the corners somewhat larger.

Bokeh

A 70-200 mm 2.8 lens use sometimes to get good background blur. The combination of high brightness and a longer focal length which are important conditions. What we see is a beautiful bokeh, the blurred circles show little or no rings. The result is a nice quiet appear blurred background.

Sigma 70-200 2.8 OS Chromatic aberration

The chromatic aberration of the Sigma 70-200 mm 2.8 OS remains low at all apertures. Correction of chromatic aberraion with photo-editing software will therefore seldom or never be needed.

Conclusion Sigma 70-200mm f/2.8 EX DG OS HSM APO review

Pros

• HoogHigh resolution in the center from f/2.8, with the exception of 200 mm
• Fairly small difference between centrumscherepte and corner sharpness at most focal lengths
• Beautiful woolly display onscherrpe parties
• Very low distortion
• Slight vignetting
• Low chromatic aberration
• relatively light in weight,
• Very good price / quality ratio

Cons

• Autofocus is not very fast
• Sensitive to light
• Not waterproof

The Sigma 70-200 mm OS 2.8 is a very good combination with the Sigma SD1 Merrill camera. In terms of resolution / sharpness, this lens to better advantage on a Sigma SD1 Merrill than with the Canon 60D or the Canon 5D MK2. The Sigma 70-200 mm 2.8 OS on a Sigma SD1 Merrill is an attractive lens, especially when you consider that the Sigma 70-200 mm 2.8 OS lot cheaper.