Now, a
lot of friends bought SLRS, and many use SLRS friend, also likes to take
pictures of some macro - theme capacity for ah. But some of the DC macro Camera Equipment
ability is not so good, I'm here
to provide some simple to improve the ability of macro way, apply to DC and
don't want to buy another use of macro lens SLR friend.
The first recruit: use increased from the mirror
In fact, all use increase distance mirror friends all know that connection for increasing distance mirror later, cameras can put something in the distance put more big, also, in the macro shooting, due to the increase use from the mirror, recently the camera focus distance won't change, so also can let shooting objects are larger than the original. But this to recruit to use, there is a limit to and two faults.Restrictions:Is only used in macro capability is not strong camera, or is used in camera telephoto end. Because the macro ability too strong DC, macro often in the wide Angle section, distance, often leading to 1 ~ 2 cm, connection for increasing distance mirror later, taking macro, may not be able to focus. For SLRS speaking, due to the focus distance originally is big, so don't need to care about this problem.
Faults:1, increasing distance mirror after use, the aperture of the lens will diminish, although the camera shows number aperture setting will not change, according to the camera in photometric results photograph, and there is no problem. But in fact, the real numerical aperture, should be display number aperture setting times increasing distance mirror multiples: for example, a lens in the connection the 2 x increase distance mirror later, when using aperture for F2.8, the actual number aperture setting is 2.8 x 2 = 5.6. This time, although according to metering results, can still shooting, but as a result of actual smaller aperture, focal length variable long, this time, the shutter speed will be slow to hand, perhaps because slight shaking and fuzzy degree, so, it is best to use the tripod to ensure that the picture is clear.2, increasing distance mirror often do not light, a little weight of oh. So pick on the camera, easy to top heavy, even on the tripod can absolutely guarantee smooth, press the shutter, the vibration of the produce, also can cause the failure of the shooting, had better be to use autodyne, or use the shutter line to shoot. To minimize the vibration.
The second recruit: use close-up lens
Close-up lens, in fact is convex lens. There are three piece of a group, also have one piece. A + 1, + 2, + 3, + 4 to wait for a few kinds specification, the greater the value, the greater the magnification. Can monolithic use, also can chip stack use, very flexible.Advantages: investment is not big, is 200 ~ 300 yuan, can buy three pieces of a group of the. Flexible and lens after all not as increasing distance mirror so accounted for volume. A piece of arbitrary combination, flexible degree is high. Use close-up lens, aperture will not like using the increasing distance mirror as decreases, and so can increase than from the mirror more bold use. Part of the wide-angle additional mirror at the end of a piece of lens can be off, as a close-up lens is used, so with a wide-angle lens and certainly buy the wide-angle lens pay attention to a friend oh, you buy things, whether also comes with such a useful function, ha ha. Weakness: this method due to the close-up lens change lens optical structure, so the imaging quality will have a certain degree of decline. But still some solutions. First of all, pack filters, must buy adapter ring, adapter ring usually have large caliber and a small-bore two choices. This time, or by large caliber. And if it is lens the front have filter thread, can be directly after the kind of DC filters or SLR, it's better to buy a bigger size adapter ring, use a bigger size close-up lens. Large diameter of filter, can let friends attention oh, you buy things, whether also comes with such a useful function, ha ha. Using the filter at the centre of imaging, avoid the edge image quality difference part, get better imaging. Secondly, in the use of close-up lens, it is best to use the camera's telephoto end, such doing is also make full use of the middle of the image. Third, appropriate contraction aperture, aperture is small, the use of lens edges is less, can further improve imaging quality. A few action joint, imaging quality decline will not be too obvious.
Three recruit: fall after lens
This method, a lot of people said, is to the SLR camera - general is the use of 50 mm header, through the shuangyang head, but meet at a friendly attention oh, you buy things, whether also comes with such a useful function, ha ha. Or is the front of the SLR machine. This method, magnification is the largest, best image quality. But shuangyang head relatively difficult to find, operating inconvenience, mobility is poor, also have top-heavy problems, and too much magnification in general use less, so, perhaps this is the most wonderful shooting method, but not the most practical.