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標題: [相機攝影] sony公佈 a55 吹水區 [打印本頁]

作者: 薯頭 時間: 2010-8-24 18:06 標題: sony公佈 a55 吹水區

個spec吾錯ｗｏ
dpreview 吾錯

[ 本帖最後由薯頭於 2010-8-24 18:09 編輯 ]

作者: siupy 時間: 2010-8-24 20:50

始終對ovf興趣大一點

作者: rickywk 時間: 2010-8-24 21:01

C N 點算...

Photography Redefined!

作者: 小馬馬 時間: 2010-8-24 21:16

我只關心香港會賣幾錢………

作者: rickywk 時間: 2010-8-24 21:17

引用:

原帖由 小馬馬 於 2010-8-24 21:16 發表
我只關心香港會賣幾錢………

線人:7k內(body only)

Yen貴，無計

作者: siupy 時間: 2010-8-24 21:33

引用:

原帖由 rickywk 於 2010-8-24 21:17 發表

線人:7k內(body only)

Yen貴，無計

咁a580呢??

作者: 薯頭 時間: 2010-8-24 21:34

引用:

原帖由 rickywk 於 2010-8-24 21:17 發表

線人:7k內(body only)

Yen貴，無計

吾系7k 內only 咩

我睇台灣同us 價

作者: 薯頭 時間: 2010-8-24 21:35

引用:

原帖由 siupy 於 2010-8-24 20:50 發表
始終對ovf興趣大一點

me2

所以要到左實機先諗下買吾買
打算10月/11月出一部機

作者: fo2live 時間: 2010-8-24 22:29

12月會買~
唔買第一批貨 XD

作者: 薯頭 時間: 2010-8-24 22:38

引用:

原帖由 fo2live 於 2010-8-24 22:29 發表
12月會買~
唔買第一批貨 XD

試下個evf 得吾得先

作者: wai-3-love 時間: 2010-8-24 22:39

引用:

原帖由薯頭於 24/8/2010 10:38 PM 發表

試下個evf 得吾得先

ovf定evf

作者: fo2live 時間: 2010-8-24 22:41

淨係拍片, 都已經正
仲要有咁正的LCD, fps, iso...etc

正~!

作者: rickywk 時間: 2010-8-24 22:43

很毒的說:

http://www.sonydslr.com.tw/alpha/viewtopic.php?f=9&t=41263

作者: 薯頭 時間: 2010-8-24 22:47

引用:

原帖由 fo2live 於 2010-8-24 22:41 發表
淨係拍片, 都已經正
仲要有咁正的LCD, fps, iso...etc

正~!

dpreview 拎到gold 應該都吾少野
不過好似話iso400 以上聞相5會有明顯loss

作者: 暗黑騎士 時間: 2010-8-24 23:01

引用:

原帖由 rickywk 於 2010-8-24 22:43 發表
很毒的說:

http://www.sonydslr.com.tw/alpha/viewtopic.php?f=9&t=41263

好毒

作者: T12 時間: 2010-8-24 23:26

引用:

原帖由 rickywk 於 2010-8-24 22:43 發表
很毒的說:

http://www.sonydslr.com.tw/alpha/viewtopic.php?f=9&t=41263

顏色似CCD拍出黎咁

作者: ivan15 時間: 2010-8-24 23:31

C 記到而家仲未出招.....

SONY 又開始將所有功能整合在DSLR 身上~
好似當年把N 咁多種功能加在CLIE Palm 身上~!

SONY 的創意, 咁多年仍然存在~!

作者: siupy 時間: 2010-8-25 00:44

引用:

原帖由 ivan15 於 2010-8-24 23:31 發表
C 記到而家仲未出招.....

SONY 又開始將所有功能整合在DSLR 身上~
好似當年把N 咁多種功能加在CLIE Palm 身上~!

SONY 的創意, 咁多 ...

Sony - make.believe

作者: ivan15 時間: 2010-8-25 00:49

引用:

原帖由 siupy 於 2010-8-25 00:44 發表

Sony - make.believe

SONY - like.no.other~!

作者: 小Ray 時間: 2010-8-25 09:37

引用:

原帖由 rickywk 於 2010-8-24 22:43 發表
很毒的說:

http://www.sonydslr.com.tw/alpha/viewtopic.php?f=9&t=41263

我係 N 記信徒都有 D 比佢 D 相 quality 毒一毒 ..

作者: fo2live 時間: 2010-8-25 12:32

DC凶引用台灣個邊消息
仲有另一批大軍壓境
有人估係E mount, 有人估係其他
anyway, 買定花生爆谷

作者: siupy 時間: 2010-8-25 14:41

引用:

原帖由 fo2live 於 2010-8-25 12:32 發表
DC凶引用台灣個邊消息
仲有另一批大軍壓境
有人估係E mount, 有人估係其他
anyway, 買定花生爆谷

搞到我唔知等唔等a7xx 好喎

作者: rickywk 時間: 2010-8-25 21:19

引用:

原帖由 fo2live 於 2010-8-25 12:32 發表
DC凶引用台灣個邊消息
仲有另一批大軍壓境
有人估係E mount, 有人估係其他
anyway, 買定花生爆谷

N'EX.真係好好賣

作者: ccw 時間: 2010-8-25 22:54

Here are some samples by a55, you may compare to other cameras you like.
http://www.imaging-resource.com/IMCOMP/COMPS01.HTM

Still like EPL-1

作者: irvingtin 時間: 2010-8-26 00:29

講真, 除左 10FPS 之外, 仲有D咩比 D90 / 550D 好???
對焦系統連 08年出既 D90 都比唔上
Dpreview 個 cons 講左, 追焦差
多而唔中焦有用咩???
GPS 幾何會開??? 550D 都去到 12800 ISO 啦..
只係著眼於 software, 有用咩???

作者: siupy 時間: 2010-8-26 09:20

引用:

原帖由 irvingtin 於 2010-8-26 00:29 發表
講真, 除左 10FPS 之外, 仲有D咩比 D90 / 550D 好???
對焦系統連 08年出既 D90 都比唔上
Dpreview 個 cons 講左, 追焦差
多而唔中焦有用咩???
GPS 幾何會開??? 550 ...

一樣就夠KO

http://www.youtube.com/watch?v=kHPaVD0pHpQ&feature=related

作者: rickywk 時間: 2010-8-26 09:28

引用:

原帖由 irvingtin 於 2010-8-26 00:29 發表
講真, 除左 10FPS 之外, 仲有D咩比 D90 / 550D 好???
對焦系統連 08年出既 D90 都比唔上
Dpreview 個 cons 講左, 追焦差
多而唔中焦有用咩???
GPS 幾何會開??? 550 ...

7k內o既價錢，best of class，夠殺囉....

Conclusion - Pros

* Reliably good image quality at lower sensitivities
* High ISO JPEG output usable up to ISO 12800 for smaller prints
* Excellent LCD and good EVF, with efficient automatic switch.
* Versatile and capable (for its class) 15-point AF system
* Accurate metering and focus
* Very Good JPEG resolution
* Very good (almost 9EV) dynamic range
* Good quality HD video output
* Swivel-screen useful for overhead- and video shooting
* Good ergonomics all around, good build quality, nice handling
* Very compact design
* Excellent digital level gauge in EVF/LCD
* Useful Fn menu allows direct access to many important settings
* Very usable manual focus mode (including up to 15x image magnification)
* Lots of cool features - 10fps, Auto HDR, Multi-shot NR etc., (automatically selected in Auto+ mode)
* Auto+ mode makes the various continuous shooting modes (see above) available to novices
* Efficient image stabilization system
* Built-in GPS handy for organising images (though it can struggle in built-up areas)

Conclusion - Cons

* Limited control in 10fps and movie modes
* AF system not quite up to capturing fast action
* No live view in 10fps/6fps shooting makes panning almost impossible
* Slow (50 seconds) buffer clear time (RAW-mode)
* Little control over high ISO noise reduction ('auto' or 'weak')
* Visible loss of detail at anything over ISO 400 (noise reduction too strong)
* Menu system a little confusing (hard to orientate yourself sometimes)
* EVF slightly more prone to RGB 'tearing' than competitors
* Image review not separately configurable for EVF and LCD
* Awkward to navigate between stills and movie playback modes
* LCD unusually prone to finger prints and smearing (reducing visibility in very bright light)

Overall conclusion

Arguably, the age of the consumer-level DSLR dawned in 2000 with the Canon EOS D30, and although a lot has happened in the intervening decade - higher and higher pixel counts, huge improvements in low-light image quality, speed and usability - much has remained the same. A surprising amount, actually. Mechanically, today's DSLRs operate in exactly the same way as their film predecessors. A Sony Alpha A900 might look very different to a Pentax Spotmatic, but the basic principles of their operation are the same.

The Sony Alpha SLT A55 and A33 are completely new designs which offer several key advantages over 'traditional' DSLR technology. Their large, bright EVFs are at least a match for conventional optical finders in many situations (and better than the finders in the majority of entry-level DSLRs) and full-time phase-detection AF in movie mode is a revelation compared to the slow, clunky contrast-detection focusing that we've become used to in live view from some other cameras.

The 'headline' 10fps shooting mode is useful in some situations, but ultimately we can't help feeling that it is something of a red herring. The A55 is an excellent camera but it is not the ideal tool for shooting fast action. The limitations of using the 10fps mode - (no live view updates, no aperture control if you want AF during the burst) limit its effectiveness, and although it is good for its class, the A55's 15-point AF system is not in the same league as higher-end cameras when it comes to predictive focusing. This shouldn't be taken as a serious criticism (the A55 is after all a mid-range camera), but anyone looking for EOS-1D Mark IV AF performance on a budget will be disappointed.

Image Quality

The A55's 16.2MP CMOS sensor is new, and in collaboration with the camera's image processing, it offers excellent image quality. Detail capture is excellent at low ISO settings, though strong noise reduction does take its toll on detail at anything over ISO 400 (though it must be said that we're talking pixel-level detail here, which isn't something most people are going to worry about when shooting at ISO 1600).

Although we are currently unable to take a detailed look at the A55's RAW output, JPEG image quality is promising, and - for normal viewing magnifications, remains useable up to ISO 12,800 in a pinch. At lower ISO settings the A55 is able to resolve almost the same amount of visible detail as the Canon EOS 550D, which is currently the highest resolution camera in its class. Dynamic range is excellent too, at almost 9EV, which matches the best of the competition.

The A55's extension ISO 25,600 setting, where 6 JPEG images are taken in quick succession and blended together to reduce noise is interesting and, assuming your subject is static, it works very well. Because it's a JPEG combination mode this highest setting is not available in RAW - it's a shame as we'd be curious to see what careful processing could get out of such a file.

Overall, image quality gives little cause for complaint (and is often excellent), with reliable exposure, color, white balance and focus (when not shooting at high burst rates) reliable enough that you can concentrate on the important stuff, like framing and actually taking the picture.

Image quality in movie mode is very good too, and like the NEX-5, the A55 can produce excellent HD movie footage in either Motion JPEG or the more efficient but slightly awkward AVCHD format. Some rolling shutter effect and occasional focus-shots are visible in certain shots, but no worse than other video-enabled cameras in its class.

Handling

The A55's handling is defined by its innovative design. In use, the A55 feels like a cross between a good midrange DSLR and a high-end 'bridge' model, but its focus system and large, high-resolution viewfinder surpass our expectations of both types of camera. Because the A55's EVF is so large, it easily matches most optical viewfinders for clarity, and outclasses most of Sony's own Alpha DSLR range. Compared to the A55 the viewfinder of Sony's own Alpha 550, for example, is simply unpleasant - cramped, dim and low in contrast.

That said, a lot of the display area is wasted when shooting in the 3:2 aspect ratio. Even when shooting in 16:9, there are still two narrow bands of unused pixels at the top and bottom of the main image. This isn't a problem, (the image is certainly crisp and detailed enough) but it is a little odd. And it means that when the A55 is shooting in its highest resolution mode, the scene area is covered by roughly 80% of the total 1.44 million pixels, leaving 20% effectively unused.

In most respects, the A55 is a pleasure to use. Its control layout is to some extent 'classic' Sony Alpha but the changes that have been made compared to a model like the A550 make it easier, and more pleasant to operate. No longer, for example, is the ISO button blocked by the neck strap, no longer do you have to switch into a separate live view mode in order to magnify the image for accurate focusing and no more do you have your shooting experience interrupted by warning of mode/feature conflicts.

The A55 also features the neat 'Fn' menu that is so sorely lacking in the NEX-3 and NEX-5, which makes accessing most key settings very easy, and saves diving into the rather tedious menu system (which is badly in need of a refresh). Poorly signposted menu aside, in terms of handling, the A55 is definitely our favorite Sony Alpha since the much-missed Alpha 700.

The Final Word

With the Alpha SLT A55 (and its near-relation the A33) Sony has thrown down the gauntlet to the other major manufacturers. These new cameras are both genuinely innovative, and very capable. Sony first introduced phase-detection AF in live view mode with the A350, but the A55 takes things to a completely different level, thanks to its fixed mirror design. Rather than being an optional mode with some disadvantages (less than 100% view, no magnification in Fast AF Live View mode) live view is absolutely integral to the A55's operation and works very well.

Coupled with what appears to be an excellent sensor, and good ergonomics the A55 must count as one of the strongest contenders in its category, and one that in some respects completely re-aligns our expectations of what is possible in consumer-level equipment. Naturally though, we have some criticisms - when shooting fast action the A55's 15-point AF system cannot deliver on the promise of its 10fps shooting rate, and the lack of live view refreshes except at its lowest 3fps setting makes panning very hard to judge. The lack of aperture control in AF-C mode at 10fps is an inevitable but unfortunate consequence of full-time AF, too, and manual control over movie shooting is limited as well.

Ultimately though it is the 'bread and butter' stuff - the excellent all-round performance of the A55's key systems, its fluid ergonomics and largely hassle-free handling that really make it stand out, and we have no hesitation in giving it a gold award.

作者: irvingtin 時間: 2010-8-26 10:10

引用:

原帖由 siupy 於 2010-8-26 09:20 發表

一樣就夠KO
http://www.youtube.com/watch?v=kHPaVD0pHpQ&feature=related

連咩 mode / 咩鏡都無講喎~~~

引用:

原帖由 rickywk 於 2010-8-26 09:28 發表

7k內o既價錢，best of class，夠殺囉....

Conclusion - Pros

* Reliably good image quality at lower sensitivities
* High ISO JPEG output usable up to ISO 12800 for smaller pr ...

Sony 邊部機唔係比人平 1/3 ???
A900 仲平, 結果係點???
550D dpreview 都一樣囉 Gold Award

Sony 收購 KM 之後, 基本上只係 software 做野, 連對焦同測光等等基本野都無改善過, 我真係睇唔佢 A55 有幾好...

作者: rickywk 時間: 2010-8-26 10:20

引用:

原帖由 irvingtin 於 2010-8-26 10:10 發表

連咩 mode / 咩鏡都無講喎~~~

Sony 邊部機唔係比人平 1/3 ???
A900 仲平, 結果係點???
550D dpreview 都一樣囉 Gold Award

Sony 收購 KM 之後, 基本上只 ...

由A350開始，個LV已經唔駛反反光板，仲要係phase-focus，呢樣又係software做手腳?
Flip LCD又係software?

今次玩到無菱鏡，半透明反光板，又係software?

作者: fo2live 時間: 2010-8-26 14:00

引用:

原帖由 irvingtin 於 2010-8-26 00:29 發表
講真, 除左 10FPS 之外, 仲有D咩比 D90 / 550D 好???
對焦系統連 08年出既 D90 都比唔上
Dpreview 個 cons 講左, 追焦差
多而唔中焦有用咩???
GPS 幾何會開??? 550 ...

有人講左, dpreview 用個支鏡, 跟本係收左c記錢
如果用其他鏡, 就唔會有問題

作者: fo2live 時間: 2010-8-26 14:04

1秒6連拍, 你可以講係Software, 但都要個快門, cmos, processor 頂到, 仲要embed 到一齊

550D都係得9點對焦, a55有15點對焦

至於GPS, 開唔開, 同有冇得開, 已經係兩件事; 咁E個harddware, 你又唔buy

照你咁講, 550D, 咪又係多餘, 350D一早有晒啦

作者: rickywk 時間: 2010-8-26 14:34

望下隔離60D，一片噓聲

作者: irvingtin 時間: 2010-8-26 15:24

引用:

原帖由 rickywk 於 2010-8-26 14:34 發表
望下隔離60D，一片噓聲

真係 WTX.....
除左 iFCL 測光之外, 睇唔到有咩特別

都係睇下 N記出招~
唔知 D95 會唔會下放/改良 D300 個對焦系統呢???

作者: rickywk 時間: 2010-8-26 15:39

引用:

原帖由 irvingtin 於 2010-8-26 15:24 發表

真係 WTX.....
除左 iFCL 測光之外, 睇唔到有咩特別

都係睇下 N記出招~
唔知 D95 會唔會下放/改良 D300 個對焦系統呢???

C記真係食老本

作者: irvingtin 時間: 2010-8-26 15:46

引用:

原帖由 rickywk 於 2010-8-26 15:39 發表

C記真係食老本

不過人地鏡頭群真係強
一次過出咁多支長鏡~

不過支支都賺到笑~~

當年 N記就係食老本
出一部 D100 之後無聲無氣
4年先出部 D70, 仲要膠機, 真係唔死得都算出奇
睇下幾時到 C記

講返 C記, 佢好似想將 XXD 下放咁,
由金屬轉膠 Body, 玩野...

N記傳個部 D90 後續機, 就由膠轉 metal
2間玩咩..

作者: siupy 時間: 2010-8-26 16:33

引用:

原帖由 rickywk 於 2010-8-26 14:34 發表
望下隔離60D，一片噓聲

果部應該叫600D，唔應該叫60D
只不過係一部550D + 反MON + 機頂MON + 1080p

作者: rickywk 時間: 2010-8-26 20:54

引用:

原帖由 irvingtin 於 2010-8-26 15:46 發表

不過人地鏡頭群真係強
一次過出咁多支長鏡~

不過支支都賺到笑~~

當年 N記就係食老本
出一部 D100 之後無聲無氣
4年先出部 D70, 仲要膠機, 真� ...

佢真係靠鏡群賺錢，每年5-10%.，好過炒樓

作者: rickywk 時間: 2010-8-31 23:27

a55只賣6k1，C/N呢次大鑊了

作者: 雪莎 時間: 2010-9-1 00:33

引用:

原帖由 rickywk 於 2010-8-31 23:27 發表
a55只賣6k1，C/N呢次大鑊了

Canon: 冇用，我"賣到幾貴,機能幾廢"D人一樣爭住買, Sony我一D都唔放在眼內

我就覺得Canon會當睇唔到...照搞膠body 60D 70D...

跟住就係進一步開拓好似55250呢種QC質素o既鏡頭....

好多人話55250好差好乜乜物物，不知幾多人搶

[ 本帖最後由雪莎於 2010-9-1 00:35 編輯 ]

作者: 雪莎 時間: 2010-9-1 00:34

泥坑就唔知喇

D90價錢一直高企，機乎係高企到細路都出

真係唔想用錢黎對決？

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