If you plan to shoot in a low-light atmosphere, you may find that a fixed or prime lens is the best option. Fixed lenses are better for wide-aperture photos than a zoom lens because they have a greater maximum aperture. “Prime lenses are made to do one focal length, and because of ...
Another benefit provided by a longer focal length is greater-enlarged background details, meaning that a longer focal length can create a stronger background blur. The 600mm lens can create a stronger separation of a subject from its background than the 500mm lens can. Most of us love an ...
See lens, afocal; magnification, shape. See lens, intraocular. anti-actinic l. Lens that absorbs ultraviolet radiations to a much greater extent than a white spectacle lens. See actinic. anti-reflection coated l. See lens, coated. aphakic l. A lens used for the correction of aphakia. It...
or as a double-lens kit that provides even greater shooting versatility. The NEX-5 can also be specified as a kit with the optional E 18-200 F/3.5-6.3 zoom that offers a powerful 11x magnification range plus Optical SteadyShot image stabilisation with Active Mode at wide angle for steadier...
Figure 10 shows Y as a function of the effective F-number of thin lenses that have a focal length of 1 cm; Y is plotted as a function of effective F-number for both planoconvex lenses with the object at ∞ and symmetrical, double-convex lenses used at unit magnification. The value of...
The further the lens is from the film or sensor, the closer the focusing distance and the greater the magnification becomes. Tubes of various lengths can be stacked, decreasing lens-to-subject distance and increasing magnification. When used with extension tubes or bellows, a highly versatile, ...
With a magnification power of 3x, this lens allows you to explore the universe in greater detail, making it perfect for both amateur and professional astronomers. Its lightweight and compact design make it easy to handle and transport, ensuring that you can take your exploration on the go. ...
Class-leading close-up performance with a minimum focusing distance of 37.8" and 0.25x maximum magnification is ideal for portraits, telephoto macro, and more. Contributing refinements include ED glass elements and a floating focus mechanism to control aberration that can be problematic in close-up ...
magnifier lens (with an image viewed at infinity) provides a magnification of M=11.9×. This magnification is calculated with the standard formula: M=254 mm/(focal length, measured in mm). This magnifier lens is not suitable for applications requiring magnification equal to or greater than 15...
Accordingly, the projection lens according to the fourth aspect of the technology of the present disclosure can reduce the weight effect received from the zoom optical system, compared with a case where the diameter of a lens that constitutes the zoom optical system is greater than or equal to ...