2013年10月28日星期一

Photography tips for beginners to learn basic use of Ps compensate for chromatic aberration



What is the color
Sometimes, the photo subject outline appears the red or blue halo ( skew ) , this halo of color or color cast is called chromatic aberration . That part of the image is also like wearing stereoscopic glasses to see the effect, it seems to be the image produced shaking. There are two color difference occurs in the image and position of the edge of the chromatic aberration of magnification chromatic aberration . Either , all of the light wavelength of the three primary colors RGB differences exist (i.e. the color difference ) , when they pass through the lens caused by different refractive index . Magnification chromatic aberration occurs when the size of the image because different wavelengths will be different , and thus more close to the edges of the image , the color halo phenomenon is more serious which is also known as lateral chromatic aberration of magnification chromatic aberration , wide angle lens generally prone to this color.
On the other hand , the position is due to chromatic aberration caused by different wavelengths of the light image formed by the focus position shift deviation , also known as longitudinal chromatic aberration . Focal length of the lens , that is prone to such a telephoto lens color. Recently, however, in order to reduce the color shift many manufacturers have adopted the ED lens , compared with the previous color has largely been suppressed.
For position color tightening aperture and how to get some suppressed , but including chromatic aberration of magnification included , color itself is determined by its optical properties , in the design of the lens can not be completely eliminated. But, like Nikon and Pentax K -7 cameras are set up on the inside of the camera captured images chromatic aberration compensation. For other models the photographs , you can also take advantage of post-processing software or Photoshop and other image processing software to compensate for chromatic aberration .
Usually in high contrast color part of the more obvious . This is an instance of chromatic aberration of magnification . See the lower right portion of the building generates a large aberration. And with Photoshop compensation, it clears very clean. Here is an example of using Photoshop compensation , in fact, most of the image processing software is equipped with red / cyan and blue / yellow compensation.After all above,it's necessary to edit photos by photo retouching software.

Selection tips on the focal length of cameras



In general, photography beginners are mostly keen to the focal lengths of 18-200 in order to get good shooting angle . In fact, this view is a serious misunderstanding, because the heavy professional lens brings physical exertion, and more importantly, the zoom lens brings lazy thinking, which allows the photographer who neglect the cultivation a sense of  refine to photographic language that seriously affects the level of photography improvements.
Zoom and fixed focus
You will find their shooting acts are totally different if you observe both people who had the two kinds of lengths, and those who hold fixed focus can get more viewing angle and possibilities.
Perhaps herein lies the secret , people who hold the zoom select a point of view which will stood still, then hands constantly rotating the zoom ring , or constantly replace their lenses are often too lazy to move about . In this case the inside , in fact, no matter to which the focal length change , shooting angles are single, fixed. Maintain such a long shot habit, style and language make photos more solidified when shooting has become increasingly lazy thinking , photography level it is difficult to get a real increase .
The fixed-focus shooting those restrictions often due to focal lengths , need to stop jumping up and down , left and right thoughts, mobile location often brings more viewing variables , while the eyes away from the viewfinder, to observe the subject and the surroundings , also stimulated the thinking of different rendering possible , in fact, this is the time of observation and reflection , in the shooting , often determines the success or failure of a photograph .
If you want ten seconds to take a photo, use nine seconds of time to observe and look for angles , with one second of time to adjust camera parameters and press the shutter , rather than wasting time in the viewfinder , the success rate is often much higher .At the back stage, maybe photo software is a good help to strangthen photos.

2013年10月24日星期四

How to improve the level of scenery photography (2)



3. Find the focus point

   All photos need certain focus points , the scenery photos without exception. In fact , if there is no focus point in the scenery ,the picture will appear very cavity . And the people who watch the photo do not know what exactly the picture want to tell and step away because people can not find the focus point.

   In scenery photography, there are many forms of focus points such as buildings , branches of a tree , a rock or a stratum ,as well as an out line and so on.

   Except for considering what to be the focus point , the more important thig is to considering the location of check point . The rule of thirds would be more useful under this situation.
  




4. Consider the front scene

   The element to make your scenery photo distinctive is to consider carefully of your front scene when you shooting and put the attractive point in your front scene. So you can not only bring the people who look photos into the photo and also create the depth pf fields with the sense of extension.

5. Consider the sky

   Another important factor in the scenery photography you need to pay attention to is the sky.

   Many scenery photos would have big part of front scene or sky. Except that your photo can satisfy one of them ,otherwise your photo would make people feel boring.

   If the sky is just boring when you shooting , don’t let the sky be the major part of your photo. You can put the horizon to the location of above 1/3 ( you should make sure that your front scene is attractive). But if the sky is full of verity of interesting clouds and colors when you shooting , lower the horizon and make the splendidness in the sky show up.

   You can also consider using image modify tools or through the use of filters to highlight the sky. you can also use photo retouching software and PIC editor to edit photos at the end, make the pictures clearer.








How to improve the level of scenery photography (1)



When I was young, I started to like photography. I used Digital Single Lens Reflex to take scenery photos for the first time. To shoot the magical things in nature is a thing that full of challenges and interests. Maybe this is my personality, I like waiting for a perfect moment to shoot. Finding the best place to shoot ,observe the changes of lines that create totally different peace and quiet.
Advices of scenery photography:


1. Choose the biggest depth of field
   Maybe , you want to use the narrow depth of field to make your photos become more creative--even though, the common situation is that photographer want the whole scenery can as much as possible be in the focus scope. The easiest way is to choose the smallest aperture setting(the biggest number in on the camera). The smaller the aperture is , the bigger the depth of field you gain .
   Remember all the time , smaller aperture means less light can by sense buy the sensitivity of camera. So you need to do the exposure compensation ,such as higher the ISO or extend the shutter speed, or both .


2. Use the tripod
   When you choose the small aperture, there meed longer shutter time. At this time ,you need to keep the camera stay steady during the whole shooting process. In fact , even if you can use the quick speed shutter , it is also necessary for you to use tripod , it is helpful for you . If you want your camera can be more steady when you are shooting , the cable release is considerable or the wireless remote control is the anther choice. And you can also use the hdr software and the photo editor , because it is helpful for the final effect of your photos.

2013年10月22日星期二

Why is it always Bad? 100 Recommendations to the Photographers (3)



51Enlarge and print your work, you will feel more happy;
52, Send some of your photos to friends;
53, Also send some of your works to a complete stranger;
54, Do not forget to frame your photos;
55, Costco (U.S. retailer) prints online is inexpensive and good;
56, Go out with friends and take pictures;
57, Join a photography club, or found a new one for yourself;
58, Photo is best for scene representation;
59, Shoot pictures for strangers is exciting;
60, Videotaping is much better than take postures;
61, Natural light is best;
62, The best lens focal length for Street photograph is 35mm (full frame under);
63, Decisively increase the ISO value when necessary;
64, Do not have to lug a tripod around all day(I did noy have one...)
65, Underexposed often better than the overexposed;
66, Shooting vagabonds and beggars to make your photos to be "noble" is a very selfish act;
67, You will find the best photo opportunities often arise in the most unlikely circumstances;

68, Some people involved often seem more interesting;
69, You can not use PS to turn a bad photo into a good one;
70, Everyone is photographer in nowadays;
71, Do not have to fly to Paris to shoot good photos, best photographs are on your side;
72, People who shoot portraits with the SLR handle down are fools;
73, Camera is your tool, not you toy;
74, In the composition, the photography and painting has no difference. Learn how to use hdr software and some photo retouching software;
75, Photography is not a hobby, but a way of life.