A question that seems to be following Web Photo forums more often is someone to ask how you can test their new camera lens "to make sure they received good." This is a fairly recent phenomenon that correlates well with the rise of digital SLRs. The reason is probably that the users can now take a shot and then test it in detail the beauty (or possibly booby) in a few seconds.
If you look at something close enough you can find defects, so that more people are reporting what they see any lens, making more and more other people their nervous about lens has any failures! is a kind of spread of viral infection of uncertainty.
There is no doubt that there are damaged, the brand enses camera lenses also made news by major manufacturers of the camera, lens, taken straight out of the box there are certainly many do not many as expected if you read the site popular photo forums, but they exist. So how do you test the lens to ensure that you do not have one of them?
Most people do not want to do extensive scientific testing of camera lenses, such as possible by using a program like Imatest. excellent package of Imatest is a software tool designed to analyze all kinds of defects, vignetting and chromatic aberration, distortion, image resolution. However it is quite complex, it is not free (according to the trial version is available). Unless you are seriously interested in writing the tests or lens reviews professional lens, that Imatest may be more than what you need and want.
So that's what that's simplified, easy, easy to understand? Well first I suggest simply exit, take some pictures. Make prints. Are you going to make prints of photos ???????, eventually so only makes sense to judge the lens on the basis of the prints. It is very difficult for most to judge the quality of the image based on looking at the monitor screen. If you are displaying an image at 100% she probably won't look good.This is typical with a monitor and a 10 MB looking at something that represent a small segment of the print which is around 24 "x 36".This is a great print.Print larger than many people make a whole life ever! if you usually do 4 x 6 or 8 x 10 prints, make 4 x 6 or 8 x 10 prints.There is no need to print the entire image to print just a section of the small image. for example, if you simply print 4 x 6 1/4 of the image, printing will be representative of the quality you see 8 x 12 print.
Of course it is a good idea to do a little more as regards checks if you have any doubts about the quality of the lens/image, which is what I am dealing with the new links below the next series of articles that describe the tests can be performed easily without buying any software or who need a computer science degree or optics.
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