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はてなキーワード: Manualとは
It had been a little situation of one's before one of the many high-end camera makers learned the particular Live life Access manner with a DIGITAL SLR requested a good online video media picture after which you can created a way to help you listing the item. Olympus seemed to be hinting at the capability in Present cards 2006, as soon as E-330 (the very first video camera by means of survive viewing) is released. Nonetheless Nikon was towards the blog post while using the D90 along with Cannon is definitely soon after along with the just-announced Canon EOD 5D Mark II Battery.
Typically the 12. 3-megapixel D90 carries LARGE DEFINITION online video from a conclusion with 1280 back button 720 pixels at 27 frames/second using the understanding and also depth-of-field restrain which usually simply a DIGITAL SLR offer. Naturally, Nikon isn't going to space an expensive precedence about this skill (and not undertake most people, finding the software when alot more of the adjunct you'll take advantage of once in a while, than only a main objective just for obtaining that D90). But, because this can be a 'world first', Photography Analyze is going to tackle the application ahead of moving on that will alternative further important qualities.
Virtually no owner guide book was initially supplied with a analysis camera still (after some hassles) most of us made it possible to down load an important PDF FILE type from Nikon European union ?nternet site. Surprisingly, this manually operated exclusively devotes one-and-a-half of 270 pages of content for you to video clip producing tasks and approximately a couple thirds of the site to help you videos playback. Less a page can be specified up to a show frame proportions in addition to appear possible choices : the 120 websites following on from the primary arguments belonging to the video clip manner.
Picture Abilities
Training video in any DIGITAL CAMERA is really a important loan -- primarily for the Nikon D90 Battery cost. Beforehand, any time you required a fabulous video camera by using compatible contact lenses, which you were taking a look at round $7000 for just a unit which will would not quite possibly track record high-definition, widescreen picture. However the D90 presents way more for just a cheaper package price by providing visitors while using same sorts of manipulate in excess of centering, subjection and additionally depth-of-field like they have having a DIGITAL CAMERA digicam, combined internet site snap by using almost any Nikkor website.
But, the actual D90's online video media model is absolutely not fantastic. As movie can certainly sole often be captured throughout Are located Perspective application, you are jammed aided by the prohibitions this means that (see below). The actual noise is normally taped monaurally and then the video recording formatting is certainly AVI which will, even though it truly is best with a large number of updating functions, uses so much ram (roughly 400MB for minute). Within assessments, some 24-second cut saved for 1280 times 720 LARGE DEFINITION method for 176 kbps appeared to be 40. 7MB dimensions.
Amazingly, this high-end camera works iwth using the premier random access memory playing cards. SOME SORT OF 32GB SDHC should help you track record as much as sixty units for training video, even though a different reduction is definitely which will video plans will be available to personal training minutes for HARLEY-DAVIDSON function and 20 short minutes with typical quality.
Saddest of can be the possibility that any autofocusing procedure :Nikon D90 Charger as well as some other primary adjustments - are not to be implemented if you find yourself photographing online video media. You can actually place emphasis quickly well before taking any preview not to mention make use of the manual place emphasis wedding ring within the contact lens even while photographing. Although if the content steps near as well as from everyone as long as you're taking, blurring might be unavoidable.
Different works that need to be placed well before taking a good movie involve getting exposed compensation, vivid white stability in addition to tact surroundings. For anyone utilizing aperture-priority AE, you can actually transformation a aperture functions even though tracking your movie and as well lens quality in and additionally available - nevertheless it will be hazardous seeing that sticking to center is usually hard.
Well before beginning online video grab you have to find the wished-for audio mode from Dvd movie Controls sub-menu while in the firing navigation. 3 selections are offered: 1280 back button 720 (16: 9), 640 back button 424 (3: 2) not to mention 320 x 216 (3: 2). You too can change this reasonable producing at as well as out (the default setting up might be ON).
Most of online video media photographing pattern goes as follows:
1. Arranged this high-end camera to have Perspective way by simply hitting a LV tab.
step 2. Target about them just by half-pressing a shutter mouse if you are throughout autofocus form; also concentrate personally.
3. Marketing a O . K . key in the center from the arrow topper to get started producing.
check out. Prevent the theme presented plus centred throughout the taking progression.Nikon Coolpix S3100 Charger for anyone within information option, you can actually switch totally focus by hand while you step on the way to and / or clear of this issue. Cautious mainly vigilant while blasting close-ups when smallish differences within the place emphasis position can display simply because blurring on the content. (To confuse issues, you'll find it tough to ascertain if the appearance within the LCD is definitely pin-sharp through bright normal light while you can not use a viewfinder on Take up residence Check out manner. )
5. To cure documenting, advertising OKAY all over again.
Taking part in lower back taped video tutorials is simple. Mass media all the LV control key the next time for you to disengage Live life Watch consequently touch typically the review button in the software. Make use of the arrow mattress pad to pick out your snap you need to have fun with not to mention press RIGHT to begin the process preventing this video clip playback.
Digital cameras are made in a wide range of sizes, prices and capabilities. The majority are camera phones, operated as a mobile application through the cellphone menu. Professional photographers and many amateurs use larger, more expensive digital single-lens reflex cameras (DSLR) for their greater versatility. Between these extremes lie digital compact cameras and bridge digital cameras that "bridge" the gap between amateur and professional cameras. Specialized cameras including multispectral imaging equipment and astrographs continue to serve the scientific, military, medical and other special purposes for which digital photography was invented.
Subcompact with lens assembly retracted
Compact cameras are designed to be tiny and portable and are particularly suitable for casual and "snapshot" uses. Hence, they are also called point-and-shoot cameras. The smallest, generally less than 20 mm thick, are described as subcompacts or "ultra-compacts" and some are nearly credit card size.[2]
Most, apart from ruggedized or water-resistant models, incorporate a retractable lens assembly allowing a thin camera to have a moderately long focal length and thus fully exploit an image sensor larger than that on a camera phone, and a mechanized lens cap to cover the lens when retracted. The retracted and capped lens is protected from keys, coins and other hard objects, thus making it a thin, pocketable package. Subcompacts commonly have one lug and a short wrist strap which aids extraction from a pocket, while thicker compacts may have two lugs for attaching a neck strap.
Compact cameras are usually designed to be easy to use, sacrificing advanced features and picture quality for compactness and simplicity; images can usually only be stored using lossy compression (JPEG). Most have a built-in flash usually of low power, sufficient for nearby subjects. Live preview is almost always used to frame the photo. Most have limited motion picture capability. Compacts often have macro capability and zoom lenses but the zoom range is usually less than for bridge and DSLR cameras. Generally a contrast-detect autofocus system, using the image data from the live preview feed of the main imager, focuses the lens.
Typically, these cameras incorporate a nearly silent leaf shutter into their lenses.
For lower cost and smaller size, these cameras typically use image sensors with a diagonal of approximately 6 mm, corresponding to a crop factor around 6. This gives them weaker low-light performance, greater depth of field, generally closer focusing ability, and smaller components than cameras using larger sensors.
Starting in 2011, some compact digital cameras can take 3D still photos. These 3D compact stereo cameras can capture 3D panoramic photos for play back on a 3D TV.[3] Some of these are rugged and waterproof, and some have GPS, compass, barometer and altimeter. [4]
Main article: Bridge camera
Bridge are higher-end digital cameras that physically and ergonomically resemble DSLRs and share with them some advanced features, but share with compacts the use of a fixed lens and a small sensor. Like compacts, most use live preview to frame the image. Their autofocus uses the same contrast-detect mechanism, but many bridge cameras have a manual focus mode, in some cases using a separate focus ring, for greater control. They originally "bridged" the gap between affordable point-and-shoot cameras and the then unaffordable earlier digital SLRs.
Due to the combination of big physical size but a small sensor, many of these cameras have very highly specified lenses with large zoom range and fast aperture, partially compensating for the inability to change lenses. On some, the lens qualifies as superzoom. To compensate for the lesser sensitivity of their small sensors, these cameras almost always include an image stabilization system to enable longer handheld exposures.
These cameras are sometimes marketed as and confused with digital SLR cameras since the appearance is similar. Bridge cameras lack the reflex viewing system of DSLRs, are usually fitted with fixed (non-interchangeable) lenses (although some have a lens thread to attach accessory wide-angle or telephoto converters), and can usually take movies with sound. The scene is composed by viewing either the liquid crystal display or the electronic viewfinder (EVF). Most have a longer shutter lag than a true dSLR, but they are capable of good image quality (with sufficient light) while being more compact and lighter than DSLRs. High-end models of this type have comparable resolutions to low and mid-range DSLRs. Many of these cameras can store images in a Raw image format, or processed and JPEG compressed, or both. The majority have a built-in flash similar to those found in DSLRs.
In bright sun, the quality difference between a good compact camera and a digital SLR is minimal but bridgecams are more portable, cost less and have a similar zoom ability to dSLR. Thus a Bridge camera may better suit outdoor daytime activities, except when seeking professional-quality photos.[5]
In low light conditions and/or at ISO equivalents above 800, most bridge cameras (or megazooms) lack in image quality when compared to even entry level DSLRs. However, they do have one major advantage: their much larger depth of field due to the small sensor as compared to a DSLR, allowing larger apertures with shorter exposure times.
A 3D Photo Mode was introduced in 2011, whereby the camera automatically takes a second image from a slightly different perspective and provides a standard .MPO file for stereo display. [6]
[edit]Mirrorless interchangeable-lens camera
Main article: Mirrorless interchangeable-lens camera
In late 2008, a new type of camera emerged, combining the larger sensors and interchangeable lenses of DSLRs with the live-preview viewing system of compact cameras, either through an electronic viewfinder or on the rear LCD. These are simpler and more compact than DSLRs due to the removal of the mirror box, and typically emulate the handling and ergonomics of either DSLRs or compacts. The system is used by Micro Four Thirds, borrowing components from the Four Thirds DSLR system.
[edit]Digital single lens reflex cameras
Cutaway of an Olympus E-30 DSLR
Main article: Digital single-lens reflex camera
Digital single-lens reflex cameras (DSLRs) are digital cameras based on film single-lens reflex cameras (SLRs). They take their name from their unique viewing system, in which a mirror reflects light from the lens through a separate optical viewfinder. At the moment of exposure the mirror flips out of the way, making a distinctive "clack" sound and allowing light to fall on the imager.
Since no light reaches the imager during framing, autofocus is accomplished using specialized sensors in the mirror box itself. Most 21st century DSLRs also have a "live view" mode that emulates the live preview system of compact cameras, when selected.
These cameras have much larger sensors than the other types, typically 18 mm to 36 mm on the diagonal (crop factor 2, 1.6, or 1). This gives them superior low-light performance, less depth of field at a given aperture, and a larger size.
They make use of interchangeable lenses; each major DSLR manufacturer also sells a line of lenses specifically intended to be used on their cameras. This allows the user to select a lens designed for the application at hand: wide-angle, telephoto, low-light, etc. So each lens does not require its own shutter, DSLRs use a focal-plane shutter in front of the imager, behind the mirror.
Main article: Rangefinder camera#Digital rangefinder
A rangefinder is a user-operated optical mechanism to measure subject distance once widely used on film cameras. Most digital cameras measure subject distance automatically using electro-optical techniques, but it is not customary to say that they have a rangefinder.
[edit]Line-scan camera systems
A line-scan camera is a camera device containing a line-scan image sensor chip, and a focusing mechanism. These cameras are almost solely used in industrial settings to capture an image of a constant stream of moving material. Unlike video cameras, line-scan cameras use a single row of pixel sensors, instead of a matrix of them. Data coming from the line-scan camera has a frequency, where the camera scans a line, waits, and repeats. The data coming from the line-scan camera is commonly processed by a computer, to collect the one-dimensional line data and to create a two-dimensional image. The collected two-dimensional image data is then processed by image-processing methods for industrial purposes.
Further information: Rotating line camera
Many devices include digital cameras built into or integrated into them. For example, mobile phones often include digital cameras; those that do are known as camera phones. Other small electronic devices (especially those used for communication) such as PDAs, laptops and BlackBerry devices often contain an integral digital camera, and most 21st century camcorders can also make still pictures.
Due to the limited storage capacity and general emphasis on convenience rather than image quality, almost all these integrated or converged devices store images in the lossy but compact JPEG file format.
Mobile phones incorporating digital cameras were introduced in Japan in 2001 by J-Phone. In 2003 camera phones outsold stand-alone digital cameras, and in 2006 they outsold all film-based cameras and digital cameras combined. These camera phones reached a billion devices sold in only five years, and by 2007 more than half of the installed base of all mobile phones were camera phones. Sales of separate cameras peaked in 2008. [7]
Integrated cameras tend to be at the very lowest end of the scale of digital cameras in technical specifications, such as resolution, optical quality, and ability to use accessories. With rapid development, however, the gap between mainstream compact digital cameras and camera phones is closing, and high-end camera phones are competitive with low-end stand-alone digital cameras of the same generation.
A Canon WP-1 waterproof 35 mm film camera
Waterproof digital cameras are digital cameras that can make pictures underwater. Waterproof housings have long been made but they cost almost as the cameras. Many waterproof digital cameras are shockproof and resistant to low temperatures; one of them is Canon PowerShot D10, one of the first underwater digital cameras.
These cameras become very popular during the holiday season, because many people want to save the best moments from their holidays at the seaside. Waterproof watches and mobile phones were produced earlier. Most makers of digital cameras also produce waterproof ones and every year they launch at least one new model, for example Sony, Olympus, Canon, Fuji.
Healthways Mako Shark, an early waterproof camera,[8] was launched in 1958 and cost around 25 dollars. It was a huge camera and pictures were black and white.
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ページ下のリンクより「翻訳サイト／オンライン辞書 Translation / Online Dictionary」へ
http://anond.hatelabo.jp/20081020045037
早速お返事有難う御座います！id:hiroyukiegamiです！
なるほど！前回
$Hamachiya2 = htmlspecialchars($_GET["data"], ENT_QUOTES); //←ここを追加$params = array('api_key' => 'フリッカーのAPIキー',
'method' => 'flickr.photos.search',
'text' => $Hamachiya2,
と$_GET のところ(入力)で何かしようとしてたけど
”レスポンスのコーナーのところ、htmlに変数埋め込んで echo してるとこ。”
が大事なんですね！勉強になります！
先生からの説明で
その際に注意すべきは、htmlの属性内(alt=ナントカとか、src=ナントカとか)に変数を埋め込んでいる場合は、ちゃんとクオートの類もエスケープする感じ？
とあって、うーんどういう意味だろうとグーグル先生に聞いてみたよ！
クオート（正確にはクォーロみたいですね！） ・・・ クォートとは、文字が通常有する特別な意味を奪うことである。
つまり”とか’の事ですね！勉強になります。
今回echoで実際に書き出している部分は
$query = $_GET["data"];echo "$query";
でした！
じゃぁ、ここをこうすればいいのかな？？
$query = $_GET["data"];echo nl2br(htmlspecialchars($query, ENT_QUOTES));
http://php.benscom.com/manual/ja/function.nl2br.php
nl2br ・・・ nl2br()関数は、改行文字（\n、\r、\n\rなど）を
タグに置き換えます。
うーん、、、ではid:zapa氏の荒らしURLをみてみよう・・・。
http://flickr2.in/fli.html?data=%3Cscript%3Ejavascript%3Aalert(%27xss%27)%3B%3C%2Fscript%3E
id:Hamachiya2先生！全然解決されないよ（涙）
今回nl2brタグで改行を回避したけど・・・これじゃダメみたいですね・・・！
<scripｔ>javascript%3Aalert('xss')%3B<%2Fscript>
・・・！！！
先生！僕は大きな間違いをしていたようです！
htmlspecialcharsとかnl2brタグも大事だけど、、、これじゃ解決できないみたい！！！！
これって、どうしたらいいんですか！？ヘルプミー！！！
なんとか直さないと・・・。
どうにか解決方法はありますかね？？
エガミくんの脆弱性のやつ
http://anond.hatelabo.jp/20081020032812
id:Hamachiya2さん！id:hiroyukiegamiです。
お返事有難う御座います！
おぉ、確かにおっしゃるとおりです。
丸投げしてしまい申し訳御座いません。
分からない点を投げさせてもらいますね。
http://flickr2.in/fli.html?data=%3Cscript%3Ejavascript%3Aalert(%27xss%27)%3B%3C%2Fscript%3E
なので$_get[data]の箇所のjsタグを無効化すればいいのでしょうかね？
$params = array('api_key' => 'フリッカーのAPIキー',
'method' => 'flickr.photos.search',
'text' => $_GET["data"],
'per_page' => '50',
'page' => '1',
'extras' => 'owner_name',
'format' => 'php_serial',);
$encoded_params = array();
となっておりますので。
$Hamachiya2 = htmlspecialchars($_GET["data"], ENT_QUOTES); //←ここを追加
$params = array('api_key' => 'フリッカーのAPIキー',
'method' => 'flickr.photos.search',
'text' => $Hamachiya2,
'per_page' => '50',
'page' => '1',
'extras' => 'owner_name',
'format' => 'php_serial',);
$encoded_params = array();
http://flickr2.in/fli.html?data=%3Cscript%3Ejavascript%3Aalert(%27xss%27)%3B%3C%2Fscript%3E
うーん、、、やっぱりアラートが出ちゃいますね…。
なぜでしょうか。。。
XSS対策で有名と言われるタグ、『htmlspecialchars』を使って
* '&' (アンパサンド) は '&' になります。* ENT_NOQUOTES が設定されていない場合、 '"' (ダブルクォート) は '"'になります。
* ENT_QUOTES が設定されている場合のみ、 ''' (シングルクオート) は '''になります。
* '<' (小なり) は '<' になります。
* '>' (大なり) は '>' になります。
を変換したのに、、、なんでエラーが出るんだろー（涙）
htmlspecialcharsってどういう効果があるんですかね？？
教えてid:Hamachiya2先生ー！
PHP: htmlspecialchars - Manual
http://jp.php.net/htmlspecialchars
string htmlspecialchars ( string $string [, int $quote_style [, string $charset [, bool $double_encode ]]] )文字の中には HTML において特殊な意味を持つものがあり、 それらの本来の値を表示したければ HTML の表現形式に変換してやらなければなりません。 この関数は、これらの変換を行った結果の文字列を返します。 これは、日常的な Web プログラミングにおいて最も有用な変換を行います。 全ての HTML 文字エンティティを変換する必要がある場合には、代わりに htmlentities() を使用してください。
今度よかったら話し聞いてください。
色々と取捨選択して今のところ残っているブログです。
一番のお気に入り。ソフトウェアやウェブサービスの紹介。更新頻度がかなり高い。
torrentに限らず、P2P全般のニュースを取り上げるブログ。
文章を書く人に役立つtipsを紹介するブログ。
生活全般。
自由な生き方の追求について。
上と似たような感じ。
これは知ってる人も多いはず。いわゆるライフハック。
色々なもののHowtoを紹介。ブログではないが、面白いから紹介。
Googleの公式ブログは単なるサービスの告知だけではなくて、ネット関連のニュースも紹介されていたりして、読む価値がある。