Photographer Ziv Koren
Ziv Koren is a senior Israeli news photographer, with cameras to capture the domestic conflicts occurred in the news picture, the works often boarded the international major news media suites. His personal favorite zoom lens is ef24-70mm f/2.8l II USM, in his words: "This is one of the most sharp shots I've ever used, although it's a zoom head, but it has the imaging level of a fixed-focus head." ”
The
1. field of view
First look at a figure:
From todin http://www.docin.com/p-32502771.html
Definition: from Baidu encyclopedia http://baike.baidu.com/view/1088626.htm
1. In an optical instrument, the angle between the two edges of the maximum range of the lens is used as the vertex of the lens and the object to be tested. I.The size of the field of view determines the field of view of the optical inst
Best fixed-Focus Lens: Fuji 90mm F/2 WR
There is no doubt that the Fuji 90mm F/2 is always lead in the process of selecting the best fixed-focus lens of the year. Whether the real environmental test, or laboratory testing, Fuji in various related to a fixed focus on the quality of the lens on the index, have made impressive outstanding results.
Fixed Focus
Reprinted please indicate the source for the klayge game engine, this article address for http://www.klayge.org/2012/03/22/fft%e9%95%9c%e5%a4%b4%e6%95%88%e6%9e%9c%e8%a7%a3%e6%9e%90/
The whitepaper of 3dmark11 highlights how to implement the Lens Effect Using FFT. Here, the lens effects include bloom and extensive light, which are generally done before HDR tone mapping.Traditional
If you don't have the financial ability to buy a big aperture lens, you can play with the blur filter in Photoshop. Lens blur Filter is a very interesting filter, it can well simulate the depth of the lens effect. Do the lens blur to do layer mask or channel mask, otherwise and other fuzzy no difference. Below use two
Syrup on the lens, is it true that someone wants to eat the cookie footage? In fact, this is a commercial photographer Justin Van Brainwave's creative performance, but the photographer did not use the real lens to pour syrup oh! So lifelike image, in fact, it is not difficult, as long as the finger can be shot. How did the photographer do it? Let's have a look.
No need to break the camera, but also to make
Learning notes for "Machine Learning Practice": Draw a tree chart use a decision tree to predict the contact lens type,
The decision tree is implemented in the previous section, but it is only implemented using a nested dictionary containing tree structure information. Its representation is difficult to understand. Obviously, it is necessary to draw an intuitive Binary Tree chart. Python does not provide its own tree rendering tool. You need to writ
In the practice of photography, the virtual background is a common means to highlight the main body. But because the actual focal length of the consumption-level DC lens is very short, it is more difficult to realize the shallow depth and blur the background. If we want to use a consumer-level DC can also achieve the virtual background of the main effect, then, Photoshop post-processing can be useful.
The above effect picture, is using Photoshop post
Pictures of the line crooked distorted, or too dark around, this is not entirely a camera or photographic technology problem, but the lens image deformation and the natural physical phenomenon of corner loss, as long as the lens correction in Photoshop Lightroom 4.2, you can immediately automatically identify the lens model, To carry out deformation and dark angl
the logical ratio of the graph is very good to determine, even if the image size changes, we can still see proportionally drawn tree chart.Two. Use decision trees to predict contact lens typesHere is an example of using decision trees to predict the type of contact lenses a patient needs to wear. Here are the general steps for the overall forecast:
Collect data: Use small datasets provided in the book
Preparing data: Preprocessing
Today's share of the tutorials is the latest hot Apple Aperture icon. Drawing an exquisite lens icon is not easy, the light author spent 5, 6 hours, so this tutorial main drawing ideas, of course, very detailed, but need a certain PS base yo. Children's shoes can try, can follow the author's ideas to complete the tutorial, if the whole wood problem, that for their own point of praise Bar.
@ Benji _stone: Painting the
Lens Selection
Next, let's talk about the camera selection problem. This is a very troublesome problem and a big problem that is plaguing everyone's nerves.
What should I consider when selecting a lens:
1. image quality;
2. Price;
3. Portability;
4. convenience.
Aside from opening 1 and 2, although some old birds look down on those friends who choose to zoom in the dog mirror, it is obviously a bit funny to
Lightroom lens correction using graphics and text steps
1, Ightroom lens correction using the method is very simple, first we open the Lightroom software, in the gallery to select the photos you want to process.
Lightroom
2, Lightroom choose to modify the photo option, click on the right side of the lens correction.
Lightroom
3, Light
Generally, the quality of the lens is usually determined by whether the aperture is constant or the focal point is reasonable.I. focal length,The focal length changes the diagonal angle of view. The shorter the focal length, the wider the angle of view, the longer the focal length, and the narrower the angle of view.If a lens has only one fixed focal length, such as EF 50mm f/1.8, It is the fixed focal leng
I would like to share with you a detailed recommendation of photography enthusiasts the combination of lenses used by the Canon 1DX camera.Analysis and sharing:I. Portable, interview, travel, and solutions for taking a picture of the world:(1) Canon EF 24-105mm F4.0L is usm, the price IS 6350 yuan.Advantages: excellent image quality, color and sharpness, fast focus, and powerful anti-shake function.Disadvantage: the aperture is not large enough. The zoom len
Give your photographers a detailed recommendation to share the lens of the Canon EOS m camera.
Recommended Share:
Canon EOS M is an entry-level digital camera with a aps-c format. According to the needs of different levels, recommend the following lens matching program:
(1) Entry level program for novice and home travel:
Canon Ef-m 22mm F2 STM.
Advantages: With wide-angle, standard focal section,
A game may have various types of lenses, such as sometimes the first person, sometimes the third person, sometimes give a close-up and so on, so you can define a lens type enumeration, in different situations to switch, easy to manage.CameraManager.cs1 usingUnityengine;2 usingSystem.Collections;3 4 //Lens Type5 Public enumCameratype6 {7Notfollow,//do not follow (can set the
Moving the axis photography, generally refers to the use of moving axis lens creation works. This kind of photography, known as the "Eye of God," is a very special piece of work, like a miniature model. Usually we use the axis-shift lens to achieve this effect, the axis-shift lens is mainly used to modify the normal wide-angle
To the photography enthusiasts to detailed analysis to share the Canon 100D camera lens can be replaced by the problem.
Analytical sharing:
Canon 100D replaceable lens equipped with ef-s 18-55mm f3.5-5.6 is STM lens with stepper motor.
Well, the above information is a small series of photography enthusiasts brought to the detailed Canon 100D cam
To the photography enthusiasts to detailed analysis to share the Canon 700D camera lens card mouth.
Analytical sharing:
Canon 700D Lens card mouth is the Canon ef/ef-s card mouth.
Well, the above information is a small series of photography enthusiasts brought to the detailed Canon 700D camera lens card mouth to share the full content of the fil
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