Okorder.com is a professional and reliable online E-market place
Providing a variety of products with reasonable prices
High quality goods provided by factory suppliers
Shipping to over 200 countries.
Dubai Logistic Complex
Okorder Quality Control?
We hold a very strict quality control system to check every connector of our products for your safety.
Okorder services for you
1. We will reply you in detail within 24 hours
2. We own well-trained and professional sales and after- sale services who can speak fluent English.
3. We offer OEM services and can print your own logo on products.
4. We have strong ability to do ODM projects.
Send a message to us:
Q:SLR camera lens: Since the aperture can be set to a fixed value (such as F3.8), in this case, turn the zoom ring aperture can change?
Note that your lens should be marked with words such as 18-135mm f3.5 / 5.6
This means that when you use 18mm end when the maximum aperture is 3.5 and 135mm side when the maximum aperture is 5.6
So when you use the 18mm end, the aperture can be fixed at f3.5 but when you turn the zoom ring, the focal length becomes longer when the maximum aperture of less than 3.5 will vary with the maximum aperture allowed by the focal length. If you set the aperture above 5.6, then no matter how you turn the zoom ring aperture value will not change.
Q:SLR camera lens parameters What does it mean
Canon EF is specially configured full frame, but can also be used in APS-C (non-full frame) body
But the focal lengths need to be multiplied by the conversion factor 1.6, is the real lens focal lengths
Refers to the zoom lens focal length and maximum
Q:SLR camera lens all the features of the scene to choose the basic common sense
Take Canon as an example:
Ultra-wide, wide angle: 17-40, the focal length covers from the wide to wide-angle section, suitable for scenery, environmental portrait of the shot, the lens of the 17MM is very unique, ultra-wide focal lengths with its exaggerated deformation to make the picture dramatic. Wide-angle lens on the composition of the control requirements are relatively high, because the broad, so many elements, composition of these elements in the frame to do a good job arranging, otherwise it will be messy.
Q:Camera lens how to do oil?
The correct way should be to first blow the ball on the surface of the lens with a blown ball (also called the ear of the ear), which is sold in the general photographic store, ranging from a few dollars to a few dollars, but Pay attention to try not to use self-service compressed air tank, because the pressure is too high, the dust may be blown into the gap in the lens, and do not blow directly to the mouth, so there will be a lot of saliva particles blowing to the lens surface, Hard to handle.
Q:How to clean the digital camera lens
If there is dust, first blow the dust with a blown ball, can not blow the brush can be swept away, remember that soft brush can not touch the hand, because the hands of oil, and then with a mirror liquid droplets on the mirror cloth from In the rotation outside the wipe, pay attention to the intensity, you can repeat several times, do not use the intensity is too large. And then the remaining dust blowing with a balloon can be.
Q:What is the head of the project and the National Bank, the camera lens works what it means
Also, like Japan's Canon, Nikon that few engineering head to buy you, because the technical and quality control are already very mature.
National Bank is the domestic licensed.
Q:Digital camera lens fell, probably the lens fell down, Canon ixus115hs, now the lens does not go back
According to your phenomenon, if there is a sound, it should be the lens zoom with the guide column broken or the lens group inside something broken, it is estimated that more dangerous.
Send you a private letter, with that method you go to try it, maybe you can engage in the set.
Q:Canon camera lens cleaning
Blow the balloon
The correct way should be to first blow the ball on the surface of the lens with a blown ball (also called the ear of the ear), which is sold in the general photographic store, ranging from a few dollars to a few dollars, but Pay attention to try not to use self-service compressed air tank, because the pressure is too high, the dust may be blown into the gap in the lens, and do not blow directly to the mouth, so there will be a lot of saliva particles blowing to the lens surface, Hard to handle. Use the whiskers to blow off the dust on the lens, very fine dust.
Q:SLR camera outside the lens can not wipe with a paper towel
n the best time to blow the ball blowing dust or brush with a soft brush gently brush out, if you encounter more stubborn dust, be sure to use a special lens cloth or lens paper gently wipe, remember not to use paper towels, etc.
Q:SLR camera lens bayonet size is the same
Bayonet uniform are F bayonet, the general Nikon SLR lens can be installed.
But the lens has the manual head (AI-S) and the automatic head (AF, AF-S) of the D and G type.
AI-S manual head in the low-end digital SLR and low-end film machine can not be a good application, because the metering, in the digital SLR only D200, D300, D700, D3, D3X and D2 series can use the manual head Metering, because the bayonet has a ring to receive the aperture size. Other cameras can also according to, that is, can not metering.
There D5000, D60, D40X, D40 fuselage mount no AF coupler, can not use the AF head auto focus. Only use AF-S head.