Nikon Fisheye-Nikkor 6mm f/2.8 instruction manual Composition, Recommended Focusing Screens

Recommended Focusing Screens

Various interchangeable focusing screens are available for F2 and F3 Nikon cameras to suit any type of lens or picture-taking situation. Those which are recommended for use with the Fisheye-Nikkor 6mm f/2.8 are listed below.

^ " - - - ^ ^ ^ Screen A/L B C D E G1 G2 G3 G4 HI H2 H3 H4 J K/P M R T

Camera ^""""----^^

F 3	© ©	®	© © © ©		©	©	©	©	A ©
F 2	© ©	®	©	© © ©	©	©	©	©	A
			-a

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

^"~~~ - \^^ Screen	A/L	B c D E	G1 G2 G3 G4 HI	H2 H3 H4	J K/P M	R T
Camera - ^ ^
F 3	•	© o o ©	O	O	© ®	®
F 2	® © o o ©		o	o	© ®
O* Excellent focusing				-Vz

®= Acceptable focusing

The image is brilliant from edge to edge, but the central rangefinder, microprism or cross-hair area is dim. Focus on the surrounding matte area.

0= Acceptable focusing

Slight vignetting or moire phenomenon affects the screen image. But the image on film shows no traces of this.

A= Acceptable focusing

The in-focus image in the central spot may prove to be slightly out of focus on film. Focus on the surrounding matte area.

Q= Exposure measurement not possible; lens/screen combination permits only focus- ing operation.

Blank means inapplicable.

The numbers (e.g., —y2)in the tables above mean that the film speed (ASA/ISO) should be set against the proper compensating mark as shown in the diagram below.

When no exposure correction is indicated, the film speed (ASA/ISO) in use should be opposite the • index.

COMPOSITION

Using a fisheye lens requires much more thought and planning about picture composition than does a conventional lens. The lens not only produces wideangle distortion but also exaggerates the relative size of objects to conform to its circular format. Objects near the center appear larger than those at the edges, and they show less optical distortion. The entire field is pushed into the distance and spatial relations are trans- formed. And a slight shift in camera position produces a whole new set of distortions.

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