全影像大小可產生APS-C大小影像的鏡頭只屬數碼屬性,它們不可使用於比APS-C 格式更大的影像接收器,也不適用於菲林相機。 無超聲波自動對焦一般來說,超聲波對焦鏡頭比傳統對焦鏡頭靜和快。 不穩定影像穩定器能減低手震時產生的模糊影像,特別在長焦距或陰暗情況下。根據倒數的定律,影像穩定化比無影像穩定鏡頭能有1到3個光圈優點。 |
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| 可用的接環 | Sony / Minolta A |
| 應用 | 人像, 近攝, 風景, 建築物 |
| 類目 | 標準平鏡, 微距 |
| 倍增器 | 1× |
| 穩定器 | 否 |
| 焦距 | 50 mm (平) |
| 鏡片組 | 6 群組含有7 元素 |
| 視角 |
35毫米: 47° 數碼: 32° |
| 葉片數目 | 7 |
| 最大光圈 | f/2.8 |
| 最小光圈 | f/32 |
| 最短焦距 | 20 cm |
| 放大 | 1× |
| 濾鏡大小 | 55 mm |
| 大小 | ∅ 71 × 60 mm |
| 重量 | 295 g |
| 記錄 |
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| 自動對焦速度 | 不適用 |
| 自動對焦聲音 | |
| 內置對焦 | 不適用 |
| 內置變焦 | 不適用 |
| 固定前鏡頭 | 不適用 |
| 接駁類型 | 不適用 |
| 天氣密封 | 不適用 |
| 插入濾鏡 | 不適用 |
| 超聲波自動對焦 | 否 |
| APS-C大小的圈 | 否 |
| 低散光度鏡頭元素 | 不適用 |
| 硬機殼 | 不適用 |
| 軟機殼 | 不適用 |
| 遮光罩 | 不適用 |
| 三腳架接合器 | 不適用 |
14 December 2007
Rather than "reviewing" this lens, I will instead point out features which I feel will be important to a potential buyer.
* Lens made in Japan - not Chinese junk.
* Razor sharp images.
* Very crisp and bright for an F2.8 lens - it "feels" like an F1.4 lens.
* Absolutely no vignetting in the corners - full coverage.
* Focus range limiter - either infinity to close, or close to macro. Can be turned on or off. The focus range limiter is a very important feature - it prevents the camera from needlessly swinging the lens all the way from infinity to macro when it re-focuses.
* Uses 55 mm filter rings.
* Macro focus works a LOT closer than advertised. You can photograph a flea on a fly if you want.
* On-lens focus hold button - temporarily turns off auto focus if you need to. This is very useful for getting the *exact* spot in focus that you want (especially in macro mode).
* The Focus Hold button can be programmed in the camera to do focus hold OR depth of field preview.
* Iris leaves are nice and symmetrical - another sign of quality.
* Iris has 7 leafs - and they are slightly curved so that the aperture is almost a perfect circle at any F-stop.
* Lens is smooth and tight - nothing rattles like "cheap" lenses do.
If you buy this lens, you will not be disappointed.
30 March 2007
I just purchased the lens and don't regret it one bit- you get what you pay for and you are definitely getting a high quality lens here- the pictures are incredible- what are you waiting for?
24 March 2007
This is, like other Sony products, very high quality. I've enjoyed a lot with this purchase.
10 April 2008
If you want to shoot macros, you have to buy this lens. I used it with A700 and got very sharp images that I cannot get using other lenses.
4 April 2008
Sony 50mm f/2.8 Macro Lens for Sony Alpha Digital SLR Camera
This little lens is BIG on performance. I took a photo of a blue vase my son brought back from Korea and the blues are rich, deep and very sharp. Sony makes quality lenses and this one is no exception!