telrad viewfinder

direction parallel to the edge of the screen. The coordinate origin is taken in the lower left corner, and the length unit is usually taken as a pixel. (2) camera simulation of 3D objects To illustrate the transformation between a 3D object and a two-dimensional image, we introduced a Camera (Camera) simulation method, assuming that a Camera is used to take a picture of the world, in the camera's viewfinder, there is a transformation process between

the same time as the lens's optical axisWhen the 45-degree angle is facing or the back camera moves, the required shutter speed is equal to the shutter speed required for the object to face or the back camera moves, which is basically increased by 1 level. For example, if a person is running at a medium speedThe motion is fixed in 1/125 seconds. It takes 1/500 seconds for the shutter to speed out of the viewfinder at the same speed. If he is out-of-s

, paint ); For(IntI = 0; I (Actor) layers [I]). Tick (); Layers [I]. Paint (C ); } } Readers need to pay attention to the call to tick in the update method. Run the program and we can see the animation effect. Note that the bitmap file is placed in the root directory of the sdcard. You can find these two files in the Res/drawable project and push them to sdcard. Next let's look at viewwindow. We can understand it as the front-end of the stage or the camera's

In mobile phone mode recognition, the frame we get in viewfinder is usually RGB or YUV. If we need to do pattern recognition, generally, you need to first convert a color image into a grayscale image. for RGB Images, there are enough formulas on the Internet, such as Y = 0.299r + 0.587G + 0.114b. if YUV is used, Y is used as the grayscale image. by the way, this grayscale image is usually used. raw file. You can use photoshop Or irfanview to directly

@interface ContentView { int value();}The above is the ContentView annotation, some declarations and parameters. private static void injectObject(Object handler, ViewFinder finder) { Class handlerType = handler.getClass(); // inject ContentView ContentView contentView = handlerType.getAnnotation(ContentView.class); if (contentView != null) { try { Method setContentViewMethod = handlerT

preference = finder.findPreference(preferenceInject.value()); if (preference != null) { field.setAccessible(true); field.set(handler, preference); } } catch (Throwable e) { LogUtils.e(e.getMessage(), e); } } } } }

coordinate system, on the graphic display screen. The coordinates of this coordinate axis are usually taken parallel to the edge of the screen, the coordinate origin is taken in the lower left corner, and the unit of length is often taken as a pixel.(ii) Camera simulation of three-dimensional objectsTo illustrate what transformations need to be made between three-dimensional objects and two-dimensional images, we have introduced a camera simulation that assumes a camera to capture the world, an

the camera detects the light, it can be adjusted in different levels to make the image approximate to the actual light. This is the exposure compensation.Manual exposure: allows you to freely control the combination of aperture and shutter. the shutter speed display in the viewfinder allows you to adjust the aperture or Shutter for correct exposure. If necessary, you can increase or decrease the exposure to create a special effect.Lens focal length:

image, we introduced a camera (CAMERA) simulation method, assuming that a camera is used to take a picture of the world, in the camera's viewfinder, there is a transformation process between the human eye and the real world. Figure 1. The camera simulates various coordinate transformations in OpenGL From a 3D object to a two-dimensional image, just like taking a photo with a camera, the following steps are usually taken: 1. Place the

viewfinder magnification selection. The standard lens is serenar 50mm f/1.9. The 35mm camera market is undoubtedly getting hotter and hotter, and Canon certainly won't be idle. In April 1949, Canon launched the II-type camera. as a successor to the s ii model, ii B provides F (normal), 1x, and 1.5x zoom options, this feature is well received to adapt to the focal lengths of 50mm, 100mm and 135mm. In addition, the machine body manufactured using the

. Scenario management is the key to the entire engine. It manages all images as scene nodes, including the animation mesh, the bill board, the camera, and the mesh), particle system and shadow volume. This module is also responsible for collision detection. It provides an easy-to-use programming interface. It is mainly composed of three main types: iscenenode class family, which are all scene nodes inherited from the iscenenode class; grid model (mesh) class family, responsible for the r

Let's give you a detailed explanation of the endurance of the Canon 600D camera.Analysis and sharing:The endurance of Canon 600D can reach about 440 sheets at 23 ℃, about 400 sheets at 0 ℃ (shot with a viewfinder), and about 180 sheets at 23 ℃, at 0 ℃, there are about 150 images (shot with real-time display), about 1 hour and 40 minutes at 23 ℃, and about 1 hour and 20 minutes at 0 ℃ (shot with short clips ).Canon 600D with LP-E8 dedicated recharg

terminals connected to the general SD TV, you can view the video clips on TV. Canon 600D uses LP-E8 special rechargeable lithium battery, capacity of 1120mAh, can be used AC adapter set Ack-e8 AC power. Canon 600D can reach 23 ℃, about 440 0 ℃ about 400 (using the viewfinder), 23 ℃ when about 180, 0 ℃ when about 150 (using real-time display shooting) and 23 ℃ when about 1 hours 40 minutes, 0 ℃ when about 1 hours 20 minutes (video shoot). Well, the

I would like to give you a detailed explanation of the shutter issue during the real-time scenario of the Canon 7D camera.Analysis and sharing:In real-time scenario, the shutter is always open, so the shutter speed at that time is actually the speed of CMOS instant reading, and the shutter sound is also simulated. Of course, no viewfinder shutter is refreshing.The official explanation is as follows. This is a normal phenomenon and is closely related t

implemented, while the center uses a dual-Cross 8-direction auto focus system.Canon 7D parameters1, body characteristics: APS-C specifications digital SLR2. Operation method: manual operation3. Sensor type: CMOS4. Sensor size: 22.3x14.9mm5. Sensor description: Aspect ratio: 3: 2, dust removal function: Automatic, manual, add dust data6. Valid pixels: 18 million7. Image processor: DIGIC 4 + DIGIC 48. Maximum resolution: 5184x34569. HD video recording: 1080 Full HD10. Body motor: SupportedAbout N

To the photographic enthusiasts for detailed analysis to share the Canon 7D this camera performance parameters. Analytical sharing: Canon 7D is a APS-C format SLR digital camera with 7.5 times optical zoom and supports full manual operation. Canon 7D uses a 3-inch 3:2-aspect-width TFT LCD screen with a resolution of 920,000 pixels, adding a double 100% optical viewfinder with a visual field rate of 100% and a magnification of 100%. The camera shell

Let's give you a detailed explanation of the screen of the Canon 7D camera.Analysis and sharing:The Canon 7D uses a 3 inch aspect ratio TFT color LCD screen with a resolution of 0.92 million pixels and a dual 100% optical viewfinder with a field rate of 100% and a magnification of 100%.The camera housing uses magnesium alloy with electromagnetic shielding, the use of sealing parts of each part, and the tight structure of the decoration skin, so th

clear images. Canon 500D supports full HD short video recording, which can record 1920x1080/20 frames/second (Full HD), 1280x720/30 frames/second (HD), and 640x480/30 frames/second (SD) video and playback.Canon 500D uses a 500 mAh capacity LP-E5 lithium battery, a charge can meet more than shooting, with SD/SDHC memory card also provides a good versatility. Canon's 400 D endurance is about 380 at 23 °C/73 °F, about 170 at 0 °C/32 °F (shot with a

proficient in using bright fixed-focus lenses to take ideal portraits. The reason is that the focus is very difficult. Even a very good difference detection autofocus sensor cannot ensure that each time the focus is in the same position. If you are not very proficient in manual focus using an optical viewfinder, the number of failed photos will increase significantly. However, this situation has been improved with the appearance of real-time video di

When focusing on a person in a dim scenario, it is recommended to use a phase difference detection autofocus. In the EOS Digital SLR camera, the quick mode of viewfinder shooting and real-time display takes a phase difference detection autofocus (some cameras do not have fast mode). In addition, in the case of difficult to concentrate, the choice of focus focusing on the focal point of autofocus can help to complete the shooting successfully. I