New Style camera android 8x zoom lens for smartphone
1 Extend metallic flexible handle and then put in mobile phone or digital camera 2 Move focusing holder right or left to adjust the lens's center of camera mobile phone or digital camera 3 Lock the locking knob after finish adjustment 4 Install the long focal lens in lens adapter 5 If you need, mount the holder with the coming tripod
Kindly NOTE: NOT MATCHING WITH IPHONE,NOKIA N8
Telescope Lens Minimum Focus Distance: 3M Magnification: 8X Field View: 246M Angle of View: 15° Size: 3.4x72mm
Net Weight: 46g Phone Holder Length: 50mm Allowed Cell Phone Width: 44~70mm ( NOT MATCHING WITH IPHONE,NOKIA N8 ) Weight: 23g Mini Tripod Total Length: 140mm; 190mm (extension)
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Q:Nikon camera CPU lens is what the meaning of the best said some
In general, "CPU lens" this call, Nikon love to use
Simply put, Nikon will be able to communicate with the fuselage through the contact lens called the CPU lens
Previous CPU lens to D-type lens as the representative of D-type lens: Distance focus distance data transfer technology
Later evolved out of the G-type lens, canceled the aperture ring
CPU lens to achieve more advanced metering and auto focus function
In the year is a technological breakthrough
Q:What is the function of the wide-angle lens of a digital camera?
The main parameters of the optical lens and evaluation of the main parameters are focal length, field of view, object distance, aperture, shutter and so on. The most perfect evaluation of the lens than the MTF (Modulation Transfer Function). However, due to aberration (calibration reasons), each range of the lens has an MTF value. These ranges refer to: (1) the paraxial portion, (2) the off-axis portion, and (3) when the optical system has an asymmetric distortion, the two parts are sub-sections in different directions. Each part has its own corresponding MTF value for different radiation energy wavelength ranges. MTF is the most commonly used and optimal index of the imaging system, and it is also the optimal index to guide the integration of machine vision system.
In the shooting of the distant movement scene, play a key role is the camera shutter speed, which is closely related with the composition, such as children, walking the characters generally more than 1 / 125S can, if the high-speed sports Of the images such as cars and other general in the 1 / 500-1 / 2000S, in general, to be able to shoot the angle to decide.
Q:Shoot macro, what camera and lens to buy?
In the general digital camera or normal normal lens before adding a magnification magnification is not large, you can simply close to the subject, photographed macro effect. But because adding a magnifying lens, the quality will be lower than the original lens, but can make ordinary digital camera to enjoy the fun of macro photography.
Another way does not affect the quality of the method is only applicable to the SLR or micro single camera, between the lens and the fuselage plus a close-up ring (with the brand camera and lens compatible close-up not only bayonet fit, There are the same electrical signal transmission contacts, if the purchase of the original brand with the same close-up ring is better, but the price is not low) method, this access ring is usually 12mmm, 24mm and 36mm several, can be a single Use or group use, so that the original ordinary lens image from double to double the focal length, and produced a magnified image, this method is characterized by shooting the lens to maintain the original optical quality, but the actual aperture Will be reduced, the light is weak when the viewfinder will be slightly difficult.
The easiest way is to remove the ordinary standard lens, and then buckle in the fuselage of the lens can be connected, you can also take a macro picture, but then there is no TTL metering, the aperture can not change, the focus is not easy to control, Vulnerable to the camera and the fuselage between the stray light dry.
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:SLR full lens and half of the difference between the lens?
In general, the two can not be seen from the outside. But there will be differences in the lens parameters.
The fundamental difference between the two is: because the full-frame photosensitive components than aps frame (so-called half) of the size of the sensor more than doubled, the former is 36mm * 24mm, the latter only 24mm * 16mm. Therefore, full-frame lens imaging circle than aps frame lens much larger. Because of this difference, so full-frame lens can be used in aps frame camera, and the effect is very good (only the best part of the lens imaging of the middle). On the contrary, aps frame lens, if used in full-frame camera, it is likely to produce the phenomenon of black circles (zoom lens may have some focal lengths do not produce black circles), so not only lost the wide-angle screen, and edge imaging quality Also very poor
Q:Can the old SLR camera lens be used on a digital SLR camera?
If the bayonet can be used. But autofocus, auto iris is not easy to use! The
Pentax is all the old lens can be used in the current digital SLR.
Canon, Nikon are only a small amount of old lenses can be used.
Q:Canon 6d camera with lens problem
2W5 budget left 1W5
Is my words to choose 24-70F2.8 +85 1.8
In front of the standard focal length zoom lens use is still relatively wide reason to recommend this is to allow you to adapt to all the conditions of the shooting
Q:On the Canon camera "lens error, please restart the camera" problem?
Second, deal with
1, unplug the SD card again. Reload the battery should be okay
2, for a new battery or charge
Q:The focal length of the SLR camera lens is calculated
Take 50mm as an example. In the full camera do not multiply by the coefficient, that is, 50mm, full-size cameras such as Canon 5D2, Nikon D700.
On the APS-C frame camera, multiply the coefficients of 1.5-1.6. Such as Pentax K5 Nikon D90, Canon 550D 60D are APS-C format. Canon APS-C frame camera is multiplied by 1.6 coefficients.
In the 645 amplitude camera, divide by 1.4--1.6 and the coefficient is equivalent to 36mm lens. Such as Pentax 645D
Q:What is the use of SLR camera lens?
SLR camera according to different requirements can choose a different lens, rather than a consumer class DC to kill the world, mainly in order to improve the image quality.