focal range मीनिंग इन हिंदी

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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)