drilling is 0.25mm (10mil). Generally, the aperture design is greater than or equal to 0.3mm (12mil ). If it is smaller than this, it is just 0. 25mm, the people in the board factory will definitely look for you. Why? Find the answer in (5!
(3) The minimum slot hole diameter is 0.25mm (10mil). Generally, the aperture design is greater than or equal to 0.3mm (12mil ). Same as (2 ).
(4) In general practice,
course, acting as a small focal or suitable.
4. Macro and portraitEF-S 60mm f/2.8 Macro USMMarket reference price: ¥3120A: Macro and portraitS: Working DistanceC: "EF-S version of hundreds of Micro", the magnification of, imaging and mechanical performance are good, shooting portraits are also OK. However, the F/2.8 aperture is not very large, and the focus is not fast. At a rate of 1x, the front-end of the lens is only about 9cm away from the objec
5"
Dispersion Circle Diameter
0.035
0.0817
0.146
35mm the allowable dispersion circle of the photographic lens, which is about 1/1000 ~ of the diagonal line length of the negative film ~ About 1/1500. The premise is that the image is enlarged to 5x7 inch, and the observation distance is 25 ~ 30 cm.
3. depth of field)
There is a allowable dispersion circle before and after the focus, and the distance between the two dispersion circles is called the depth of field, that is
each pixel is coupled to the photoelectric layer, so that the image has a high brightness, improved I. I conversion efficiency, so it is very promising. Currently, the high-performance I. I quantum detection efficiency (DQE) reaches 85%. According to some materials, the resolution is up to 6.8lp/mm.
3. to adapt to the large X-ray dose range (that is, the variation range of input light), the optical system requires the use of large aperture,
① We start the PowerPoint2010, insert a text box, enter some text, make the text bold, so the effect is more obvious. With the text selected, click the menu bar--format--text fill--gradient--other gradients.
② pop-up Settings Text Effect Format dialog box, in the text fill check the gradient fill, preset color selected for the rain after the style, as shown below.
③ Click Gradient Aperture 1, and the color is set to brown.
blue tone. )The "Ryden" 80A, 80B, 85, 85B in the Kodak Ryden Color temperature filter are four common color temperature conversion filters. (A, B, C, d refers to the concentration of the color of the filter.) )Kodak Ryden # 85th warm down Color temperature conversion filter:85 Series is divided into a, B, C, color temperature conversion filter. 85B can reduce the color temperature from 5500K to 3200K. The mirror is amber and is suitable for using light film in daylight.Kodak Ryden 80th Cold hue
revolutionary change to photography 35mm. Later, the development of SLR also proved this, but the walls are fragrant, and the glory of slrs is mostly Japanese.
The time series and pentaprism have defined a brand new model, and the M42 screw port has become a standard for the camera industry for a long time. Early SLR cameras were used for waist and plane scenes without a prism. The scenes seen by waist and plane scenes were reversed. In addition, the aper
Ambient Light)All light in an environment, including sunlight and artificial light sources such as tungsten lamps or fluorescent lamps. It is also called available light.
Ambient Metering)A hand-held metering table that measures the light that falls on the shooting object.
Angle of View)What the lens sees is included in the viewfinder or LCD screen.
Aperture (Aperture)A variable hole in the lens is used to
Use of metadata-extractor to read image EXIF metadata in Android
I. Introduction
Recently used in the development of metadata-extractor-xxx.jar and xmpcore-xxx.jar this thing, simply read a lot of articles to learn, to share and share. Work is often dealing with big pictures, and it is also more beneficial to explore and explore.
First, we will introduce what is EXIF and EXIF is the abbreviation of Exchangeable Image File, which is a format specially set for digital camera photos. This format
Let's give a detailed analysis to all photography enthusiasts and share the photos of the Canon 1100D camera shooting the charm of the city.Tips:Shooting DataEF-S 55-250 f/4-5.6 IS/aperture priority automatic exposure (F8, 2.5 seconds)/ISO 100/white balance: AutomaticAuckland, New Zealand, which is near by night. The remote zoom lens is used to capture the opposite scene from the bank. With the excellent image quality brought by the EOS series, th
Let's take a look at EXIF:EXIF can be attached to JPEG, Tiff, Riff, and other files to add content about the digital camera shooting information and the version information of the index graph or image processing software. All JPEG files start with the string "0xffd8" and end with the string "0xffd9. The file header contains a series of "0xff ??" Format String, called "identifier", used to mark the information segment of a jpeg file. "0xffd8" indicates that the image information starts, and "0xff
. there is an "Oval yellow label" on the boxes of genuine licensed goods. After scratching the box with your nails, you will see a string of numbers, report the number to the Fuji after-sales service desk by phone number on the machine box to check whether it is genuine licensed. 6. When you ask for invoicing, they will be very willing to pay a 3-4% tax, which is generally handwritten. 7. Of course, the manual is also in simplified Chinese. The paper is good and the labels attached to the camera
color of the line
Step three: Fill the color settings
This is a more interesting place, first check "gradient fill", and then select the type is "path", the following is set gradient aperture, select "Aperture 1", and then drag "end position" to 80%, color select "Red", transparency is 0% (Figure 4).
Figure 4 Setting of aperture 1
Then select the
① We start the PowerPoint2010, insert a text box, enter some text, make the text bold, so the effect is more obvious. With the text selected, click the menu bar--format--text fill--gradient--other gradients.
② pop-up Settings Text Effect Format dialog box, in the text fill check the gradient fill, preset color selected for the rain after the style, as shown below.
③ Click Gradient Aperture 1, and the color is set to brown.
-third, so that no clouds to increase the level of the sky cut off, can also let the water's reflection completely revealed.
As long as you have a tripod and shoot without worrying about the shutter speed, I will set the ISO to the lowest 100 to ensure the best quality and minimum noise.
Here I would like to say sorry to you, the first two times in the same place to write a bit wrong, the first couple of films I have set the aperture in the F22, in
The curve makes you think of high school math, pull the picture but also exposed PS traces, all kinds of filters make you dazzling? Okay, in this digital deluge today, there are always some things that can be done through the craftsman's way to achieve some interesting results.
Today is about the Lensbaby lens. With the general lens pursuit of analytic force, distortion, dispersion, such as the pursuit of leaky, virtual coke, deformation, irregular aperture
!
Then add Symbloic shortcut keys for commnamd + OPTION + \
The shortcut key for adding a single line breakpoint is COMMAND + \
6. In the development of iOS, we often need to intercept the screen of the mobile phone or the screens on the simulator when we communicate with the product and design, and we may use the Home button + power on the phone, and then pass it through IPhoto or QQ on the phone. But I teach you a way to use shortcut ke
The followingCodeThe ilife component downloaded and installed in the appstore can be upgraded to the Software Update Server. This is especially useful for enterprises to use the SUS server to manage the network environment for software upgrade. However, use it with caution.
Rm-RF "/applications/iMovie. APP/contents/_ masreceept "RM-RF"/applications/garageband. APP/contents/_ masreceept "RM-RF"/applications/iPhoto. APP/contents/_ masreceept "mV/appl
based on the face of the person. Some cameras or software, such as IPhoto, have this feature.
Product recommendation : Identify which of these are the products that the user is genuinely interested in and willing to buy, based on a user's shopping history and lengthy list of favorites. Such a decision model can help the program to provide advice to customers and encourage product consumption. Sign in to Facebook or Googleplus and they'll recommend
Today, there are many things. Let's write a simple one.
Now it seems that there are more iPhone users than Mac users. Most of them may import photos from the iPhone to Windows.
One day, you suddenly used a Mac, just like me, and thought that the iPhone connection line was inserted into the Mac USB, which is equivalent to putting the iPhone into the mother's arms,
It should be very convenient.
The cup has no effect on your Mac .. It is better to insert a USB flash drive to vomit blood.
Later
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