PPT-1 The Path to Aperture Synthesis

SKANZ 2012 Auckland 15 Feb 2012 Ron Ekers CSIRO Australia 2 Today we use Aperture Synthesis Images routinely Radio Image of Ionised Hydrogen in Cyg X CGPS Penticton But the path to developing the underlying concepts has a rich history involving discovery sociology and some incredible individuals. A simple model is shown in Figure 1 and the most essential dynamic property of a SHA is its ability to disconnect quickly the hold capacitor from the input buffer amplifier Historical ly the short but nonzero interval required for this action is cal Understanding the relationship between three critically important parameters: the ISO speed, aperture (or f-stop number), and shutter speed. . Definitions-. ISO speed: A measurement of how quickly your camera’s sensor absorbs light.. Photographic Imaging. What DSLR stands for . DSLR stands for “Digital Single Lens Reflex”.. A DSLR is a digital camera that uses mirrors to direct light from the lens to the viewfinder, which is a hole on the back of the camera that you look through to see what you are taking a picture of.. By. Gemma . Furley. Depth of field. Depth of field is the range of the scene that stays sharp and focused. As we create small apertures the depth of field increases. As we set large apertures the depth of field decreases. . R. . De . Maria.. Thanks . to L. . Bottura. , . R. . Bruce, S. . Fartoukh. . M. . Giovannozzi, . B. . Holzer,. M. . Karppinen. , . S.Redaelli. , F. . Savary. .. 11T dipoles (MBH) will allow to introduce collimators in the dispersion suppressor to mitigate diffractive losses originated at the IP or at the collimators and being intercepted by the first dispersive aperture . Yasuhiro Mukaigawa (Osaka University). Seiichi Tagawa (Osaka University). Jaewon Kim (MIT Media Lab). Ramesh Raskar (MIT Media Lab). Yasuyuki Matsushita (Microsoft Research Asia). Yasushi Yagi (Osaka University). Manipulating Depth of Field. What/ where is it?. Put most simply – Aperture is ‘the size of the opening in the lens when a picture is taken.’ . When you hit the shutter release button of your camera a hole opens up that allows your cameras image sensor to catch a glimpse of the scene you’re wanting to capture. The aperture that you set impacts the size of that hole. The larger the hole the more light that gets in – the smaller the hole the less light.. Kiyomi. . Seiya. . Aperture scan. . B75 : Aperture scan program with new corrector. . Kent Triplet, Alex Waller. . BPM data from B40 to B:HPXXX, B:VPXXX. . Sharon Lackey. . Data taking and offline analysis. D. e. p. t. h. of . F. ie. l. d. D. e. p. t. h. of . F. ie. l. d. What is Depth of Field?. The distance both in front of and behind the focus point which . appears. . acceptably. focused.. D. e. p. Module 5. A. perture. is the camera part that controls the amount of light that enters the camera. . Aperture is measured in f/stops. . The size of the aperture will primarily affect how much of the scene is in focus, the . ISO. Generally defined, ISO is the camera's sensitivity to light.. . If . the camera has a low ISO, the camera will be less sensitive to the light coming in.. . If . the camera has a high ISO, it will be extremely sensitive to light. ISO settings are as follows: 100, 200, 400, 800, and 1600.. Bunches at 5 to 50 MeV. LOLA . (Greg . Lo. ew. , Rudy . L. arsen and Otto . A. ltenmueller. ). REGAE . (. Re. lativistic . E. electron. . G. un . for . A. tomic . E. xploration). a. first idea about numbers. Aperture. The aperture is the opening at the rear of the lens that determines how much light travels through the lens and falls on the image sensor. . The size of the aperture’s opening is measured in f-stops. How does the . aperture . affect exposure?. A WIDE/LARGE f/stop is a SMALLER number (f/2) = OPENS the aperture for MORE light. A SMALL f/stop is a LARGER number (f/22) = CLOSES the aperture for LESS light..