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Viewfinder

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356: 227: 368: 129: 239: 302: 380: 479: 399: 158: 215: 32: 294: 491: 320:, with a mechanism to insert a mirror between the lens and the film which reflected the light upwards, where it could be seen at waist level on a ground glass screen. When ready to take the picture, the mirror was pivoted out of the way (without moving the camera). Later SLR still cameras had a mechanism which flipped the mirror out of the way when the 515:. There is a half mirror prism that reflect data from LCD to the optical viewfinder, so we can see both the shooting frame and the shooting data. A button can change the hybrid function to electronical viewfinder by blocking the image through the optical viewfinder with moving a half mirror prism to be a straight up mirror. 169:
installed either in a replaceable plateholder, or in a spring back where springs hold the ground glass at the focus plane until a photographic plateholder is slid in front of it. Spring backs usually had a flip-up cover protecting the ground glass. A black focusing cloth was used with larger models.
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Miniature Speed Graphic, early 1940s, 2¼ × 3¼ inch format, with focal plane shutter and four different viewfinding means: a spring back with ground glass under a flip-up cover, simple optical viewfinder on top, Kalart rangefinder on side, and sports finder consisting of flip-up wire at lensboard and
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may have two viewfinders, both electronic. The first is viewed through a magnifying eyepiece, and due to a rubber eyepiece it can be viewed perfectly even in bright light. The second viewfinder would be larger, of a higher resolution, and may be mounted on the side of the camera. Because it consumes
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setting and the number of remaining shots which can be taken in a burst. Another display which overlays the view of the scene is often provided. It typically shows the location and state of the camera's provided auto-focus points. This overlay can also provide lines or a grid which assist in picture
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Simple reflecting viewfinders, known also as "brilliant finders", comprised a small forward-looking lens, a small mirror at 45° behind it, and a lens at the top; the user held the camera at waist level and looked down into the lens, where a small image could be seen. Such viewfinders were integrated
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Later referred to as "sports finders", for many sports and newspaper applications optical viewfinders gave too small an image and were inconvenient to use for scenes that were changing rapidly. For these purposes a simple arrangement of two wire rectangles, a smaller one nearer the eye and a larger
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that a photographer uses to determine exactly where the camera is pointed, and approximately how much of that view will be photographed. A viewfinder can be mechanical (indicating only direction and approximate view), with simple optical components, with precision optics and optical functions, or a
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Viewfinders are used for virtually all cameras whether still or movie, film, electronic analog (Television) or digital. Many digital sensor cameras do not have a separate viewfinder. For those cameras, the electronic image is shown on a small accessory screen for composition and focusing purposes.
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properties. With a mirror, of similar size to the film, held at 45°, it projects an upright image onto a focusing ground glass screen viewable from above. The camera can be then be held steady at waist level. Although the viewfinder lens was similar to the camera lens, the optical quality was less
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partial mirror to split the camera image between the shutter and film, and the viewfinder. A major advantage of SLR viewfinders is that any change of camera lens did not affect the viewing accuracy, and accurate camera focus did not depend on correct linking or calibration.
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one further away, was used, without optics; the two rectangles were aligned so the smaller one was centered in the larger, and the larger rectangle would give an indication of what would be included. Cameras with sportsfinders usually had optical viewfinders also.
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mounted to see what the camera will see. Its drawbacks are many, but it also has advantages; it consumes no power, it does not wash out in sunlight, and it has "full resolution" (i.e. the resolution of the photographer's
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It is not uncommon for a camera to have two viewfinders. For example, a digital still camera may have an optical viewfinder and an electronic one. The latter can be used to replay previously captured material, has an
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A single divergent (plano-concave) lens, in front of a frame, when close to the eye, acts as a viewfinder. Adding a convergent (plano-convex) lens makes a very short reversed Galilean (upright image)
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button was pressed, opened and closed the shutter, and then moved the mirror back. The Zeiss Ikon Contax S was the first SLR camera to allow easy eye-level viewing by using a roof
349:. Cameras with interchangeable lenses had to indicate the field of view of each lens in the viewfinder; more usually, interchangeable viewfinders to match the lenses were used. 161:
A Sanderson 'Hand' camera dating from circa 1899. The image was viewed on a ground glass at the back, under a flip-up cover. The flexible side shades helped seeing the dim image.
191:. For movie camera or others with changeable lenses, outline marks on one of the viewfinder lenses could show the different fields of view for the different camera lenses. 367: 316:, the significant field-of-view error for close subjects caused by the offset distance between the viewfinder's lens and the camera's lens. Early SLRs were 466:
cameras, provide an indication that the image is correctly focussed. Digital still cameras will typically also display information such as the current
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based display device. In addition to its primary purpose, an electronic viewfinder can be used to replay previously captured material, and as an
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to laterally reverse the inverted camera image (the reflex mirror had already vertically reversed the image). SLR movie cameras used a
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In late 2010, Fujifilm announced hybrid viewfinder of optical viewfinder and electronic viewfinder in one viewfinder for its
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These cameras had no separate viewfinder. The exact image (although upside-down and reversed left-right) was viewed on a
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displays surrounding the view of the scene. On a film camera, these displays show shooting information such as the
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of the SLR type and so is preferred for dance photography. Reinhold Heidecke cited his experience with
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important and so the cost is reduced. TLR viewfinders do not have the interrupted viewing and
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line in 1929. Some similar-looking cameras are actually simple box cameras with a
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A still camera's optical viewfinder typically has one or more small supplementary
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System through which the photographer looks to compose and focus the picture
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Robot Royal III camera with Zeiss Ikon waist level viewfinder attachment
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more power, a method is often provided to turn it off to save energy.
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focusing from the German trenches in 1916 as the inspiration for the
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Some sophisticated 20th century cameras with direct viewfinders had
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as the camera lens, so it has the same field of view and
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German Tewe 35 mm to 200 mm zoom viewfinder
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View through a Pentax K20D viewfinder (without lens)
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digital accessory device used with digital cameras.
260:(TLR) cameras use a viewfinding lens with the same 56:. Unsourced material may be challenged and removed. 680:"Viewfinder Definition - What is a Viewfinder" 417:. An optical viewfinder is simply a reversed 8: 503:, and can be switched off to save power. A 385:Early 21st century digicam with viewfinder 606:"Dance Movement Photography (DOC format)" 116:Learn how and when to remove this message 573: 351: 210: 343:coincidence (split-image) rangefinders 7: 527:do not need any viewfinding device. 195:Waist level (reflecting) viewfinders 54:adding citations to reliable sources 232:Mamiya 645 1000s waist level finder 361:Leica IIIf viewfinder camera, 1951 14: 378: 366: 354: 237: 225: 213: 30: 641:"What is a Rangefinder Camera?" 41:needs additional citations for 289:Single-lens reflex viewfinders 1: 220:Child's waist-view box camera 253:Twin-lens reflex viewfinders 204:, and fitted to the side of 21:Viewfinder (disambiguation) 726: 446:to browse through menus. 305:Mamiya 645 1000s AE finder 183:Simple optical viewfinders 18: 402:Built-in viewfinder of a 394:Contemporary viewfinders 133:flip-up peepsight on top 513:highend compact cameras 495: 487: 486:viewfinder information 406: 306: 298: 162: 134: 700:Photography equipment 542:Electronic viewfinder 537:Director's viewfinder 493: 481: 428:electronic viewfinder 401: 304: 296: 160: 131: 50:improve this article 19:For other uses, see 582:"Miniature Graphic" 409:Viewfinders can be 347:rangefinder cameras 562:Waist-level finder 496: 488: 407: 310:Single-lens reflex 307: 299: 174:Mechanical finders 163: 137:In photography, a 135: 501:on-screen display 444:on-screen display 141:is a device on a 126: 125: 118: 100: 717: 684: 683: 676: 670: 669: 667: 665: 651: 645: 644: 639:O'Neil, Daniel. 636: 630: 627: 621: 620: 618: 616: 602: 596: 595: 593: 592: 578: 382: 370: 358: 258:Twin-lens reflex 241: 229: 217: 121: 114: 110: 107: 101: 99: 58: 34: 26: 725: 724: 720: 719: 718: 716: 715: 714: 710:Optical devices 705:Camera features 690: 689: 688: 687: 678: 677: 673: 663: 661: 653: 652: 648: 638: 637: 633: 628: 624: 614: 612: 610:arcaimaging.com 604: 603: 599: 590: 588: 580: 579: 575: 570: 533: 449: 396: 390: 386: 383: 374: 371: 362: 359: 339: 291: 255: 249: 245: 242: 233: 230: 221: 218: 206:folding cameras 197: 185: 176: 155: 122: 111: 105: 102: 59: 57: 47: 35: 24: 17: 12: 11: 5: 723: 721: 713: 712: 707: 702: 692: 691: 686: 685: 671: 646: 631: 622: 597: 572: 571: 569: 566: 565: 564: 559: 554: 549: 544: 539: 532: 529: 395: 392: 388: 387: 384: 377: 375: 372: 365: 363: 360: 353: 338: 335: 290: 287: 254: 251: 247: 246: 243: 236: 234: 231: 224: 222: 219: 212: 196: 193: 184: 181: 175: 172: 154: 148: 124: 123: 38: 36: 29: 15: 13: 10: 9: 6: 4: 3: 2: 722: 711: 708: 706: 703: 701: 698: 697: 695: 681: 675: 672: 660: 656: 650: 647: 642: 635: 632: 626: 623: 611: 607: 601: 598: 587: 583: 577: 574: 567: 563: 560: 558: 555: 553: 550: 548: 545: 543: 540: 538: 535: 534: 530: 528: 526: 522: 516: 514: 509: 506: 502: 492: 485: 482:Typical film 480: 476: 474: 469: 465: 461: 457: 456:shutter speed 453: 447: 445: 441: 437: 433: 429: 425: 420: 416: 412: 405: 400: 393: 391: 381: 376: 369: 364: 357: 352: 350: 348: 344: 336: 334: 331: 327: 323: 319: 318:plate cameras 315: 311: 303: 295: 288: 286: 284: 280: 276: 272: 267: 263: 259: 252: 250: 240: 235: 228: 223: 216: 211: 209: 207: 203: 194: 192: 190: 182: 180: 173: 171: 168: 159: 152: 149: 147: 144: 140: 130: 120: 117: 109: 98: 95: 91: 88: 84: 81: 77: 74: 70: 67: –  66: 62: 61:Find sources: 55: 51: 45: 44: 39:This article 37: 33: 28: 27: 22: 674: 662:. Retrieved 658: 649: 634: 625: 613:. Retrieved 609: 600: 589:. Retrieved 585: 576: 557:Live preview 517: 510: 497: 448: 408: 389: 340: 337:Rangefinders 330:beamsplitter 308: 285:viewfinder. 262:focal length 256: 248: 198: 186: 177: 167:ground glass 164: 138: 136: 112: 103: 93: 86: 79: 72: 65:"Viewfinder" 60: 48:Please help 43:verification 40: 664:November 2, 586:graflex.org 552:Finderscope 473:composition 430:(EVF) is a 283:waist-level 271:shutter lag 202:box cameras 694:Categories 591:2019-12-11 568:References 415:electronic 326:pentaprism 297:Hasselblad 279:Rolleiflex 139:viewfinder 106:March 2014 76:newspapers 505:camcorder 464:autofocus 462:and, for 419:telescope 404:Nikon D90 275:periscope 189:telescope 659:Engadget 615:10 April 547:Eyepiece 531:See also 460:aperture 314:parallax 525:webcams 411:optical 322:shutter 90:scholar 426:). An 153:camera 143:camera 92:  85:  78:  71:  63:  521:CCTVs 266:focus 200:into 97:JSTOR 83:books 666:2013 617:2018 523:and 458:and 440:OLED 151:View 69:news 484:SLR 468:ISO 452:LED 438:or 436:LCD 432:CRT 424:eye 413:or 52:by 696:: 657:. 608:. 584:. 475:. 434:, 682:. 668:. 643:. 619:. 594:. 119:) 113:( 108:) 104:( 94:· 87:· 80:· 73:· 46:. 23:.

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Viewfinder (disambiguation)

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camera
View

ground glass
telescope
box cameras
folding cameras
Child's waist-view box camera
Mamiya 645 1000s waist level finder
Robot Royal III camera with Zeiss Ikon waist level viewfinder attachment
Twin-lens reflex
focal length
focus
shutter lag
periscope
Rolleiflex
waist-level

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