A Good Aperture Range
My personal preference for a ‘good' aperture range (35mm equivalent) is:
F1.8 - F16 ...
Aperture range: F3.5 - F22
Weight: 165 grams
Size: 61x52mm
Mount: Micro-four thirds
Close-focus distance: Very very close, at just under 1 inch from the lens. The lens is capable of focusing inside the dome port.
The aperture range of a lens refers to the amount that the lens can open up or close down to let in more or less light, respectively.
The aperture range of a camera is very wide so that the camera can be used with a wide range of lenses. But if you've got a lens that has a maximum aperture of f/3.5 then that's the maximum aperture you're going to get.
50mm
Aperture range
F2.5-F4.4
F2.5-F22 (ND filter used for apertures of f/22 in auto shooting mode)
Construction
11 elements in 7 groups (4 aspherical lens elements) ...
Depth-of-field scale is marked between aperture range and distance scale on the lenses or just below the distance scale depending on the manufacturer. There are two sets of numbers on each side of the depth-of-field scale.
Compared to most fixed-lens compact cameras, the most commonly used and inexpensive SLR lenses offer a wider aperture range and larger maximum aperture (typically f/1.4 to f/1.8 for a 50 mm lens).
The maximum aperture or aperture range on a zoom lens. A lens' maximum aperture is determined by dividing the actual diameter of the aperture opening into the focal length of the lens. That's why the aperture might change from f/2.
5 maximum aperture range, 702P HD video, Accessory port, In-Camera Art Filters (Pop Art, Soft Focus, Grainy Film, Pin Hole, Diorama and Dramatic Tone), sensor-shift image stabilization, live guide control, in-camera panorama, ...
This article forgets to mention that most lenses are at their best in a middle aperture range, say f/4 to f/11. This is true of all lenses, even very expensive ones.
Fast speeds can be achieved by limiting the aperture range for the fast speeds to small and that of the slow speeds to larger apertures. But in most cases there are two diaphragms behind a camera lens or between its optical elements.
For example, you might have one lens that you know to work well across the entire aperture range, and another that's otherwise OK but starts to break down wide-open at maximum tele.
Lens Construction - 10 elements in 7 groups (includes 1 ED element)
Aperture Range - 2.8 to 22
Fixed lens hood (plastic)
Lens Designations - ED SIC CRC D G DX (glossary available on Nikon site) ...
With close-ups, you won't need to go through the whole aperture range because the wider apertures will most certainly be overexposed so bracket your first shots from fl 1 to f22 to find the correct one for the tone of subject you are photographing.
The marked aperture range of this lens is f2.8 - 16. The focusing range of this lens is 1.6 to 4 inches. The MP-E 65 macro lens uses triple extension to focus (9.5 inches long at 5X).
Zoom lenses are specified with the focal length range followed by the aperture range, e.g., "24-105/2.8-4" is a lens that goes from a wide 24mm perspective to a telephoto 105mm perspective while the maximum aperture available goes from f/2.
The question I now have regards a site or info that explains things in detail that a lay person can understand. Like in camera specs one see something like "Aperture Range f 2.8-f4.
8 lens likely will produce its best images at a working aperture of Æ'/5.6, for example. Computer-aided designs and advanced manufacturing techniques have improved lens performance throughout a lens' aperture range, ...
However, I prefer to use shutter-priority exposure mode with those speeds and let the camera take care of the aperture calculation - although you should watch that this does not exceed the lens’ aperture range.
much of a life, by dividing the lens focal length by the diameter of the aperture. The range of f-numbers follows a standard sequence with each f-number being half as bright, passing half as much light, as the previous one. A typical aperture range ...
Many photographers recommend shooting near f/8, for maximum lens sharpness, as this is roughly in the middle of the aperture range for most lenses.
 See also: Aperture, Camera, Lens, Image, Photograph
  
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