focal range वाक्य
उदाहरण वाक्य
मोबाइल
- Twenty feet is therefore called the'focal range'of the lens when this stop is used.
- What is not clear, however, is whether the focal range they cite was computed, or empirical.
- Lenses required and used for this are typically in the 20 to 200 mm focal range.
- The camera also has a macro capability ( 5 cm minimum focal range at 1?zoom ).
- Thomas Sutton and George Dawson define " focal range " for what we now call " hyperfocal distance ":
- Attaching the converter increases the lens focal length to 70mm, reduces the maximum aperture to 3.5 and limits the focal range.
- The focal range is consequently the distance of the nearest object, which will be in good focus when the ground glass is adjusted for an extremely distant object.
- The terms'apertal ratio'and'focal range'have not come into general use, but it is very desirable that they should, in order to prevent ambiguity and circumlocution when treating of the properties of photographic lenses.
- But breeding will out; even after Diana's tragic death, Charles rarely complained, never explained, and, perhaps most important, raised his mediagenic boys well within the focal range of the nation's appreciative tabloid media.
- As for refocusing, one's eyes are focussing-not on the mirror-but the reflected image, so the eyes are already focused to there max focal range .-- talk ) 23 : 05, 20 November 2014 ( UTC)
- In the same lens, the focal range will depend upon the size of the diaphragm used, while in different lenses having the same apertal ratio the focal ranges will be greater as the focal length of the lens is increased.
- In the same lens, the focal range will depend upon the size of the diaphragm used, while in different lenses having the same apertal ratio the focal ranges will be greater as the focal length of the lens is increased.
- While phase detection requires the lens to move its focus point quickly and directly to a new position, contrast detection autofocus instead employs lenses which can quickly sweep through the focal range, stopping precisely at the point where maximum contrast is detected.
- Their focal range is about 1000 times their aperture diameter, so it makes sense as a hyperfocal distance with CoC value of " f " / 1000, or image format diagonal times 1 / 1000 assuming the lens is a normal lens.
- The availability of fast and more sensitive, more forgiving negative and positive film stocks, faster lenses in all focal ranges, smaller, more powerful lights, electronic postproduction-all would add up to different photographic techniques, which would negate the need for the same ingenuity in dealing with the difficulties of cinematography in 1978 ."
- Macro capability is not outstanding ( 5 cm minimum focal range at 1?zoom ), and the tele-macro capability present on the lower-end Panasonic FZ models ( the ability to focus down to 1 m at 420 mm ) is not present; the FZ50 can only focus down to 2 m at 420 mm.
- In its review of the lens, LensTip noted the lens'qualities at the image centre, low vignetting and low distortion particularly in the middle of the focal range, but also its " average picture quality " at the edge of the frame when shooting wide open, as well as " high chromatic aberration at the shortest focal length ".
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