If your camera has a depth of field preview (stop-down) button or lever, depth of field can be observed while looking through the camera viewfinder. It is furthermore probable to determine the depth of field by using the depth-of-field index.
Not to accidentally include unwelcome objects in the picture, such as the legs of your stand or your own hands or feet.
More precise exposure control is possible as soon as this is mounted on a Nikon camera having 3D Matrix Metering capability, since specialty distance information is transferred from the lens to the camera body. The value of an extra-low dispersion (ED) lens element ensures superb optical performance, while a 7-blade diaphragm produces an aperture that is almost circular for exceptional rendering of out-of-focus highlights.
Using a fisheye lens requires much more planning in relation to picture arrangement than with a standard lens. This lens not only produces extreme barrel distortion but furthermore exaggerates the virtual size of objects to conform to its format: Objects close the midpoint appear bigger than those next to the edges and they reveal a smaller amount barrel distortion. The entire field of view is pushed into the distance and spatial relations are transformed, and with a slight change of the camera, extra distortions are produced. Be careful
A regular filter cannot be attached to the front of the lens. Use a gelatin filter by cutting it to an appropriate size. Then include it into the filter holder on the back of the lens. Rotate the focus ring to the infinity setting to accomplish insertion easier.
The Nikon fisheye Lens DX Nikkor lens is especially constructed for use with Nikon SLR digital cameras. It features a 180? angle of view as measured across the diagonal of the frame and provides high-quality images from infinity to the closest focusing distance of 0.14m (0.5 ft.), due to Nikon’s new near-distance correction technique.
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