Đánh giá lens nikon 24f2.8 d af
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Nikkor AF 24mm f/2.8D - Review / Test Report Lens Reviews - Nikon / Nikkor (APS-C) Article Index Introduction Analysis Sample Images & Verdict Page 1 of 3 Review by Klaus Schroiff, published April 2006 Lens kindly provided for testing purposes by Julio M. Alperi Gonzalez! IntroductionReleased back in 1993 the Nikkor AF 24mm f/2.8D is one of the older AF lenses in Nikon's lens lineup. On classic full frame SLRs it is a wide- to ultra-wide-angle lens whereas its field-of-view is equivalent to 36mm on today's APS-C DSLRs so it behaves like a moderate wide-angle here. The mechanical design of the lens is fairly similar to its cousin, the AF 35mm f/2D, so the build quality is pretty good with an outer barrel made of polycarbonate combined with a metal mount. The small rubberized focus ring operates very smooth. Typical for lenses with a linear extension system the whole inner tube moves during focusing thus extending the lens (marginally) when focusing towards closer focus distances. The lens has no internal AF motor and relies on a slotted drive screw operated by the camera. As a result AF operation will generate a moderate degree of noise. Due to the very low weight of the optical system the AF speed is very fast on the D200. The front element does not rotate so using a polarizer is no problem. Specifications Equiv. focal length36 mm (full format equivalent) Equiv. aperturef/4.2 (full format equivalent, in terms of depth-of-field) Optical construction9 elements in 9 groups Number of aperture blades7 min. focus distance0.3 m (max. magnification ratio 1:8.9) Dimensions65 x 46 mm Weight270 g Filter size52 mm (non-rotating) HoodNikon HN-1 (optional), barrel shaped (screw-in) Other featuresClose-Range Correction (CRC) system (also called floating elements elsewhere). Lens provides distance (D) 28mm f2.8 Ais là lens rất tốt, tuy nhiên gắn trên D5300 thì ko có đo sáng và báo nét, canh nét bằng mắt và chỉ chụp mode M. 28mm gắn lên crop nó thành 42mm, normal chứ không có wide nữa, khẩu 2.8 vừa đủ dùng. Mình có cả 24mm và 28mm thì 24 dùng trên crop dễ hơn do nó thành 35mm còn 28 chủ yếu dùng trên Fx. Được sửa bởi fredtran lúc 11:37 AM ngày 31-05-2016 F-mount
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