Recommended Focusing Screens

until the black dot is opposite the number which corresponds with your esti- mated or measured camera-to-subject distance.

Various interchangeable focusing screens are available for F2 and F3 Nikon cameras to suit any type of (ens or picture-taking situation. Those which are rec- ommended for use with this Zoom-Nikkor 25-50mm f/4 lens are listed below.

< W i J i e r ^ n A L B C D E Gl G2 G3 G4 HI H2 H3H4 J K P M R T

F3	0	0	s		a 0	a ,5,
F 2	0			O	o 0	o

•When the Teleconverter TC-200 is attached to this iens, use the following table:

C«mora	—•	____ A/L	B c D E		Gl	G2 G3 G4 HI H2 H3 m J	K/P M R T
	F 3	•	0	a		•	•	• •
	F 2	•	a	0		•	•	'
								'

Teleconverters TC-14 and TC-300 can't be used with this lens. © = Excellent focusing

<§) = Acceptable focusing

The split-image rangefinder, microprism or cross-hair area is dim. Focus on the surrounding matte area.

O = Acceptable focusing

Slight vignetting (or moire phenomenon in the case of the microprism) affects the screen image. The image on the film, however, shows no trace of this.

Blank means not usable.

With Photomic-series finders, -Vj in the table above means that the film speed (ASA/ISO) should be set against the proper compensating mark as shown in the diagram. When no exposure correction is indicated, the film speed (ASA/ISO) in use should be opposite the • index.

Zoom-Nikkor 25-50mm f/4 specifications

The Nikon Zoom-Nikkor 25-50mm f/4 is a versatile and compact zoom lens that has become a favorite among both professional photographers and enthusiasts. It was released in the 1970s as part of Nikon's F series lenses, designed primarily for 35mm film cameras but remaining popular in the digital age with compatible DSLR and mirrorless systems.

One of the standout features of the Nikon Zoom-Nikkor 25-50mm f/4 is its constant maximum aperture of f/4 throughout the zoom range. This capability ensures consistent exposure settings and depth of field control, making it an excellent choice for varied shooting conditions. The lens covers a wide focal length range, from a moderately wide 25mm to a standard 50mm, enabling photographers to capture a variety of scenes—from expansive landscapes to intimate portraits.

The lens incorporates several advanced optical technologies designed to enhance image quality. The construction includes multiple elements arranged in groups, effectively minimizing distortion and aberrations typically associated with zoom lenses. Nikon's proprietary Super Integrated Coating (SIC) further reduces flare and ghosting, resulting in impressive color accuracy and contrast.

Another significant characteristic of the Zoom-Nikkor 25-50mm f/4 is its compact and lightweight design. Weighing merely 600 grams, it offers portability without sacrificing durability. The lens barrel is made from high-quality materials, ensuring reliability in various shooting environments. The design also features a smooth zoom mechanism that allows for precise framing adjustments.

Focusing is made easy with the lens's close focusing capability, allowing for effective close-up work. The focus ring operates smoothly, allowing photographers to fine-tune their shots accurately. Additionally, the lens is compatible with Nikon's extensive range of accessories, including filters and hoods, enhancing its versatility.

In conclusion, the Nikon Zoom-Nikkor 25-50mm f/4 remains a trusted companion for photographers seeking a reliable zoom lens that combines excellent optical performance with practicality. With its constant aperture, superior coating technologies, and robust design, it is a perfect choice for anyone wanting to explore the art of photography, making it an enduring classic in the world of photography lenses.