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Range of applications
Hood is widely used in the backlight photography, in general, can avoid glare.
However, if the light source closer, there are still likely to occur glare can be hand block the hood in the side of the light source is located, whether to eliminate glare, can directly observe the effect in the viewfinder.
In addition to the optical quality of the lens itself, the hood is very obvious, did not use the hood pictures, no matter the color, sharpness and contrast are not ideal, the use of pictures of the hood in several aspects have good performance, little hood, big difference.
Hood both improve the picture quality means, is also a good professional habits, but also the performance of a rigorous photographer professionalism!
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【Note】
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1, the hood there are a variety of sizes, should be chosen to match the kind of lens focal length, and must be confirmed before you buy a good size or directly with a camera to go with!
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Also note that the shorter the focal length of the lens, the greater the angle, the shorter hood.
If the standard lens hood sets for use on a wide-angle lens around the screen is bound to have consequences that can not be imaged.
On the contrary, you can not play a proper role of the hood. Using a zoom lens, the best equipped with own use telescopic hood.
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3, the hood is widely used in backlighting photography, in general, can avoid glare.
However, if the light source closer, there are still likely to occur glare. At this point, you can hand side of the block the hood where the light source. The glare whether to eliminate from the viewfinder observed.
Hood to work with flash coordination factors should be considered, because sometimes the former will often flash of light blocked part.
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4, the hood is used to weaken the stray light from outside of the shot area on the lens produced glare interference, therefore, can only be used in the focus when the front end does not rotate on the lens.
In general, the hood is the longer, the shelter stray light effect is more ideal. Squaring hood is too long, then, will cause occlusion screen quadrangular phenomenon.
Petals cover the four corners of the corresponding screen position is recessed inward, it is possible to "open" the corners of the light on the screen, under the premise does not block the screen corners, its petals equivalent period hood extends forwardly and can provide more than round mouth hood some better shelter stray light effects.
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Installation issues
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The hood's role is to prevent stray light entering the lens, resulting streamer. When using this camera in bright light, it is recommended to use the hood.
This hood should not be used in conjunction with the built-in flash, as it would shadow appears.
To install the hood, the hood on the edge of a rectangular pit bit aligned with the focal length on the lens barrel indicates:
(1), Hood set into the front of the lens and 90 ° clockwise rotation until clasped so far this time round pit-bit instructions in focus.
(2), when properly installed, large hood do on the hood should be in the upper and lower position.
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Do not force the lens hood attached. If you can not register, please check the correct location. Put the hood is lowered 90 ° rotation counterclockwise and remove it.
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When not using the camera can be installed hood reversed. Which do a large hood when the hood set into the front of the lens, clockwise for 90 ° rotation until the "click" sound fastens far. When the camera cover lens cap can be fitted or lowered hood.
To hood lowered, rotated 90 ° in a counterclockwise direction to remove it.
In bright sunlight or backlight, the lens hood will lens flash and ghosting is reduced to a minimum.
The lens hood can block excess light to improve picture quality.
Check whether the camera is turned off and the lens is retracted. Turn off the flash.
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1, (1) Remove the lens ring. (2) Install the lens hood adapter.
2 Attach the lens hood.
(1) the camera upside down position.
(2) will be linked to hook into the lens hood adapter.
(3) Promote the lens hood.
(4) as shown in the figure alignment mark.
(5) screws. Check the screws are fixed, and then install the lens hood.
Do not use screws too tight.
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[Temporary storage]
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1, remove the lens hood, turn around and re-install.
(1) the camera upside down position.
(2) will be linked to hook into the lens hood adapter.
(3) Promote the lens hood.
(4) as shown in the figure alignment mark.
(5) screws. Check the screws are fixed, and then install the lens hood.
Do not use screws too tight.
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2, install the lens cap
Temporarily storing the lens hood, do not take pictures.
Make sure that the lens cap is securely installed.
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Note:
1, lens hood when using the flash to take a picture, the lens hood will make photo flash dims, so the photo below may become dark (vignetting effect), and flash control may be disabled . Proposal to remove the lens hood to shoot.
2, the AF assist lamp in the dark, remove the lens hood.
3, the details about how to install the MC protector and the ND filter.
If you lose the supplied accessories, the dealer or your nearest service center.
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【Article is excerpted from: Baidu Encyclopedia】
【Network reprint / Just reference】
【Translation is by Goolge】
