![]() ![]() ![]() Priority to US09/643,897 priority Critical patent/US6480681B1/en Application filed by Panavision Inc filed Critical Panavision Inc Priority to JP2000254071A priority patent/JP4187913B2/en Priority to CA002316657A priority patent/CA2316657C/en Priority to EP00118626A priority patent/EP1079254B1/en Priority to AU53678/00A priority patent/AU778803B2/en Priority to DE60011714T priority patent/DE60011714T2/en Assigned to JPMORGAN CHASE BANK, AS ADMINISTRATIVE AGENT reassignment JPMORGAN CHASE BANK, AS ADMINISTRATIVE AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from US15091399P external-priority Assigned to PANAVISION, INC. Original Assignee Panavision Inc Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Neil Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime, expires Application number US09/643,897 Inventor Iain A. Google Patents Adjustable viewfinder optical system for shoulder-supported camerasĭownload PDF Info Publication number US6480681B1 US6480681B1 US09/643,897 US64389700A US6480681B1 US 6480681 B1 US6480681 B1 US 6480681B1 US 64389700 A US64389700 A US 64389700A US 6480681 B1 US6480681 B1 US 6480681B1 Authority US United States Prior art keywords optical axis lens group image axis portion viewfinder Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US6480681B1 - Adjustable viewfinder optical system for shoulder-supported cameras Chapters 5 and 6 spell out some additional details of setting exposure and focus in Live View mode.US6480681B1 - Adjustable viewfinder optical system for shoulder-supported cameras Because many of the functions connected with Live View shooting are similar to those you use during picture playback, I cover both uses of your monitor together in Chapter 4. This feature is called Live View shooting. Keep in mind, too, that with the T1i/500D, you can opt to use the monitor instead of the viewfinder to frame and preview your shots. If the monitor doesn't turn off automatically, the upcoming section "Setup Menu 1" tells you how to fix things see the information related to the LCD Auto Off feature. One other note about the viewfinder: See that little black window underneath the viewfinder - the one labeled Display Off sensor in Figure 1-4? When you put your eye up to the viewfinder, the sensor tells the camera to turn off the monitor display, saving you the trouble of doing the job yourself. Look for an adapter called an E-series dioptric adjustment lens. ![]() Prices range from about $15-$30 depending on the magnification you need. This accessory, which you pop onto the eyepiece, enables further adjustment of the viewfinder display. If your eyesight is such that you can't get the autofocus points to appear sharp by using the dioptric adjustment control, you can buy an additional eyepiece adapter. Rotate the viewfinder adjustment knob until the autofocus points appear to be in focus.ĭon't worry about focusing the actual picture now just pay attention to the sharpness of the autofocus points. (The circle that surrounds the center autofocus point is related to exposure metering, a subject you can explore in Chapter 5.)ģ. I labeled one of the little guys in Figure 1-4. The focusing screen is the collective name assigned to the group of nine autofocus points that appears in the viewfinder - the little squares with the dots inside. Look through the viewfinder and concentrate on the focusing screen shown on the right side of Figure 1-4. Remove the lens cap from the front of the lens.Ģ. ![]() Viewfinder adjustment knob Autofocus point Figure 1-4: Use the little knob to set the viewfinder focus for your eyesight.Īdjusting the viewfinder to your eyesight is critical: If you don't, scenes that appear out-of-focus through the viewfinder may actually be sharply focused through the lens, and vice versa.įollow these steps to adjust your viewfinder:ġ. Viewfinder adjustment knob Autofocus point Officially known as a dioptric adjustment control, this knob enables you to adjust the magnification of the viewfinder to mesh with your eyesight. Perched on the top-right edge of the viewfinder is a tiny black knob, labeled in Figure 1-4. ![]()
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