Picture Angle and Focal Length, 242 | Nikon D2x instruction

Technical Notes—Optional Accessories

CPU lenses can be identiﬁed by the presence of CPU contacts. Type G lenses are marked with a “G” on the lens barrel, type D lenses with a “D.”

CPU lens

Type G lens

Type D lens

Type G lenses are not equipped with a lens aperture ring. Unlike other CPU lenses, there is no need to lock the aperture ring at the minimum aperture setting (maximum f/-number) when using a type G lens.

Picture Angle and Focal Length

The diagonal picture angle of the D2X is less than that of a 35-mm cam- era. When calculating the focal length of the lenses for the D2X in 35-mm format, multiply the focal length of the lens by about 1.5 (high-speed crop mode off) or 2 (high-speed crop mode on):

	Approximate focal length (mm) in 35-mm format
Picture angle			(modiﬁed for picture angle)
35-mm ﬁlm camera	17	20	24	28	35	50	60	85
Hi-speed crop: Off	25.5	30	36	42	52.5	75	90	127.5
D2X Hi-speed crop: On	34	40	48	56	70	100	120	170

35-mm ﬁlm camera	105	135	180	200	300
Hi-speed crop: Off	157.5	202.5	270	300	450
D2X Hi-speed crop: On	210	170	360	400	600

Calculating Picture Angle

The size of the area exposed by a 35-mm cam- era is 36 × 24 mm. The size of the area exposed

Lens

by the D2X, in contrast, is 23.7 × 15.7 mm (high-speed crop off) or 17.7 × 11.7 mm (high- speed crop on). As a result, the picture angle of photographs taken with the D2X differs from the picture angle for 35-mm cameras, even when the focal length of the lens and the distance to the subject are the same.

400 500 600

600 750 900

800 1000 1200

Picture size (35-mm format) (36 mm ⋅ 24 mm)

Picture diagonal

Picture size

(D2X; high-speed crop off) (23.7 mm ⋅ 15.7 mm)

Picture size

(D2X; high-speed crop on) (17.7 mm ⋅ 11.1 mm)

Picture angle (35-mm format)

Picture angle

(D2X; high-speed crop off)

Picture angle

(D2X; high-speed crop on)

242 D2x specifications

The Nikon D2x, launched in 2005, marked a significant advancement in digital photography for both professionals and enthusiasts. It was designed to deliver exceptional performance and quality within a robust body, making it a trusted companion for various photographic scenarios.

At the heart of the D2x is a 12.4 megapixel CMOS sensor, which offers a remarkable level of detail and enables large prints without compromising image quality. This sensor distinguishes itself by providing excellent dynamic range and responsiveness, allowing photographers to capture stunning images even in challenging lighting conditions.

One of the D2x's standout features is its dual-area autofocus system. The camera boasts 11 AF points, with three-dimensional focus tracking that intelligently predicts the movement of subjects, ensuring sharp focus even with fast-moving objects. This makes it particularly suitable for sports and wildlife photography, where decisive moments are fleeting.

The D2x operates with a high-speed continuous shooting mode, capable of capturing up to 5 frames per second in RAW format. This is a crucial feature for action photographers who need quick succession shots to get that perfect frame. Additionally, the camera offers a burst mode that enables extended shooting, with a capacity for up to 85 frames in JPEG format, ensuring that no moment is missed.

Another highlight of the Nikon D2x is its advanced metering system, which utilizes 1005 pixel RGB sensors to achieve precise exposure control. This system evaluates the scene and ensures that highlights and shadows are well-balanced for a natural look, contributing to the overall quality of images produced.

The D2x is built with a rugged magnesium alloy body designed to withstand tough conditions, making it suitable for fieldwork. It also integrates an ergonomic design that enhances comfort during prolonged shooting sessions, accommodating the demanding nature of professional use.

In terms of connectivity, the D2x includes USB 2.0 and HDMI ports for easy connectivity and data transfer. It also supports Nikon’s Creative Lighting System, which allows for advanced flash synchronization and control, giving photographers flexibility in managing lighting setups.

Overall, the Nikon D2x remains a notable camera in Nikon's lineup, recognized for its high-performance image capture, robust build, and reliable focus capabilities. As a professional-grade camera, it combines advanced technologies with user-friendly features, catering to the needs of both aspiring and seasoned photographers.

Nikon D2x manual Picture Angle and Focal Length, 242, Calculating Picture Angle

Models: D2x