slr1文法

單反：單鏡頭反光 (SLR: Single Lens Reflex)

SLR is an abbreviation of Single Lens Reflex. It is used in high standard cameras. SLR makes use of an automatic moving mirror arrangement that makes it possible for photographers to perceive precisely the same, captured by the film or digital imaging system. Mirror and prism system is used by single-lens reflex to perceive precisely what will be captured.

SLR是Single Lens Reflex的縮寫 。 它用于高標準相機。 單反相機利用自動移動鏡裝置，使攝影師可以感知由膠片或數字成像系統拍攝的圖像。 單鏡頭反光使用反光鏡和棱鏡系統來精確感知要捕獲的內容。

It is generally called the DSLR (Digital Single Lens Reflex) camera.

通常稱為DSLR(數碼單鏡反光)相機 。

Two optical light paths are contained by all the cameras with viewfinders before the development of SLR, which are,

在開發(fā)SLR之前，所有帶取景器的相機都包含兩個光學路徑，分別是：

To the film through the lens, and

通過鏡頭到膠片，以及

Located above, which is TLR or twin-lens reflex or to the side, which is rangefinder.

位于TLR或雙鏡頭反射鏡的上方，或位于測距儀的側面。

The viewing lens is expected to traverse with the film lens at a fixed point someplace in front of the camera because the viewfinder and the film lens cannot share a similar optical path. The majority of SLR cameras allow upright and laterally correct viewing by the utilization of a roof Pentaprism positioned in the optical path between the reflex mirror and viewfinder.

由于取景器和膠片透鏡無法共享相似的光路，因此，預計觀察鏡將與膠片透鏡一起在相機前方某個位置移動。 大多數單反相機通過利用位于反射鏡和取景器之間的光路中的屋頂五棱鏡來實現直立和橫向正確的觀看。

Till the 1990s, SLR was the most highly developed photographic preview system existing, but the current development and enhancement of digital imaging technology with an on-camera live LCD preview screen has overshadowed recognition of SLR's.

直到1990年代，SLR才是最先進的照片預覽系統，但是當前通過相機實時LCD預覽屏幕進行的數字成像技術的開發(fā)和增強已經使對SLR的認可蒙上了陰影。

The Italian Rectaflex A.1000 is the first commercially created SLR that engaged a roof Pentaprism.

意大利Rectaflex A.1000是第一款商業(yè)化的單反相機，與屋頂五棱鏡相連。

In 1952, Asahi created the Asahiflex and in 1954, the Asahiflex IIB. In 1957, the Asahi Pentax joint the fixed Pentaprism and the right-hand thumb wind lever. In 1959, Nikon, Canon, and Yashica launched their first SLRs.

1952年，旭創(chuàng)建了Asahiflex，1954年創(chuàng)建了Asahiflex IIB。 1957年，Asahi Pentax將固定的Pentaprism和右手拇指擋風桿連接在一起。 1959年，尼康，佳能和Yashica推出了第一批單反相機。

Image source: http://hyperphysics.phy-astr.gsu.edu/hbase/geoopt/slr.html

圖片來源：http://hyperphysics.phy-astr.gsu.edu/hbase/geoopt/slr.html

優(yōu)點 (Advantage)

The key benefit of SLR cameras in comparison to other cameras is that the lenses can be changed to get the preferred images.

與其他相機相比，SLR相機的主要優(yōu)勢在于可以更換鏡頭以獲得首選圖像。

• The image stabilizing function is effective.

  圖像穩(wěn)定功能有效。

• The zoom capturing function is longer.

  變焦拍攝功能更長。

• The sensor size is large.

  傳感器尺寸大。

• Flash intensity control.

  閃光強度控制。

• Control of photography is significant.

  攝影的控制很重要。

• Print quality is effective.

  打印質量有效。

• Underwater photography is satisfactory.

  水下攝影是令人滿意的。

壞處 (Disadvantage)

The key drawback of SLR cameras in comparison to other cameras is that it is heavier and costlier. It costs nearly higher than the point-and-shoot camera.

與其他相機相比，SLR相機的主要缺點是它更重且更昂貴。 它的成本幾乎比傻瓜相機高。

• The photo quality is not good.

  照片質量不好。

• The viewfinder is either exceptionally minute or in a few cases not even present.

  取景器非常微小，或者在某些情況下甚至不存在。

• It has diminutive controls.

  它具有較小的控件。

• It has a touch screen, which wouldn’t be as stable during the capturing of an image.

  它具有觸摸屏，在捕獲圖像時不會那么穩(wěn)定。

• Its flexibility is constrained.

  它的靈活性受到限制。

翻譯自: https://www.includehelp.com/dictionary/slr-full-form.aspx

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