Tamron Af 70-300mm F/4-5.6 Xr Di For Nikon / Canon / Sony Mount
- Loading Port:
- Hongkong
- Payment Terms:
- T/T
- Min Order Qty:
- 1 Piece pc
- Supply Capability:
- 50 Piece/Pieces per Day pc/month
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- Q:Double lens reflex camera can introduce
- Dual lens mirror viewfinder camera, referred to as "double reverse camera". This system consists of two sets of lenses with the same focal length. The top lens is usually unable to adjust the aperture, only the use of framing; the lower lens with a shutter shutter adjustment device for the actual exposure. Double reverse system structure is simple and durable, has been widely accepted by reporters and the public. But because of its inherent parallax and lens restrictions, is now less production and use.
- Q:Digital camera after the start of the lens telescopic non-stop
- The lens that the components of the problem, need to repair. Not over the insurance soon to get to see after the sale
- Q:SLR digital camera lens on the 3.5-5.6 what it means
- The maximum aperture change value, with the focal length increase the maximum aperture gradually smaller.
- Q:How to distinguish between good and bad lens lens SLR camera?
- Only by the eyes to see the quality of the lens, although unscientific, but there are some experience can refer to. 1: look at the lens coating reflective, reflective the weaker the better. There are many kinds of reflective colors, but the reflective color can not explain the quality of the lens. Look at the lens reflex is to see the intensity of the intensity of the reflective; In fact, the lens coating the weaker the better, in theory, the lens coating is not the most perfect reflective, the current highest level can achieve 2% reflectivity, that is to increase The highest rate of 99.8%.
- Q:Digital camera lens marked "f = 6.3-18.9mm 1: 3.1-5.6", what does it mean ah, how this camera
- Is to tell you that front is the focal length, behind that is the aperture. Also tell you that the lens aperture will change with the focal length changes, when you use the maximum focal length, the aperture will automatically be reduced to a minimum. This is the "floating aperture lens" he and fixed focus, constant large aperture zoom lens quality is very different, can not be compared.
- 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?
- Because it is not a constant aperture that is the telephoto end and wide-angle end of the largest aperture are fixed Such as Nikon 24-70MM F2.8 Whether it is 24mm wide angle or 70mm telephoto end maximum aperture can be set to F2.8 Also, such as the lens is written on the 18-135mm F3.5-5.6 that this lens is not constant 18MM wide-angle end of the big aperture is 3.5 135MM telephoto end is 5.6
- Q:SLR camera can be installed at the same time two or more lens, is the two superimposed and then what
- Therefore, SLR can only be connected directly to an optical lens for imaging, the rest of the adapter ring, telephoto lens can be superimposed on the basis of this lens, play a different effect.
- Q:Camera lens on the 5.0-60MM1; 3.4-5.9 What does it mean
- At the minimum focal length of 5.0 mm, the maximum aperture is 3.4; at the longest focal length of 60 mm, the maximum aperture is 5.9. In addition, because the focal length is changing, it also tells us that this is a zoom lens.
- Q:Camera lens points can be stretched what can not pull what is called what
- The lens is divided into two kinds, Can be stretched called "zoom lens", stretching the action can change the focal length of the lens, that is, people do not have to move, you can change in the lens to see the object of the distance.
- Q:Camera lens does not go back, do not stretch, how do?
- he performance can not be completely retracted or can not be fully extended and to the side of the side, after the lights turn on and ring three warning after the shutdown. If you have microelectronics product maintenance experience you can try to open the lens group to try to reload. Step by step to the temple to carefully observe, re-turn the mirror can be. In the demolition of the process should pay special attention to those small cable, accidentally will break the fault caused by increased.
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Tamron Af 70-300mm F/4-5.6 Xr Di For Nikon / Canon / Sony Mount
- Loading Port:
- Hongkong
- Payment Terms:
- T/T
- Min Order Qty:
- 1 Piece pc
- Supply Capability:
- 50 Piece/Pieces per Day pc/month
OKorder Service Pledge
OKorder Financial Service
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