Sony A7S

評測報告

實拍照片

Extremely light weight design
Good for daily use and compact out shooting
Very good with old lenses
Extremely good picture qualities, you won't find it to complain with.
Good condition in low light area, an acceptable rate as high as ISO12800.

Expensive
Shortage in FE lenses
Low battery life
Buttons layout found it a bit off weird.

I have been using it for 3 months now, and I find this camera is extremely good in light weight. Good picture qualities with low light capture in details with high ISO support in an acceptable rate @ 12800.( personal opinion) I carried it with me when I'm on the trip to Korea last month and outcome was amazing. Especially, when it uses Contax G lenses the pictures were extremely sharp and all details were kept in a good form. I couldn't find any complains about it. I love it and I will keep on using until the next one comes out later this year. Cheers.

Extremely good at low light environment
High dynamic w/ slog-2 picture profile
Light weight (compare w/ D800)
Full-frame in small body

1.) Turn on the Camera is very slow (compare w/ D800)
2.) Not enough physical batton (compare w/ D800)
3.) Slog-2 work only ISO 3200 or above
4.) Lack of good lens(w/ auto focus)...35mm "2.8"....16-35"F4"...24-70"F4"...only one good fast lens 55 "1.8"...but all these mid range lens aren't cheap...
5.) 4k external recorder (Atomos) is almost expensive as A7 package

The camera itself is almost perfect. I would give it 90/100 mark...but Sony marketing is making me sick...if they make 35mm 1.4 sell $15,000 HKD, I would still consider to buy one. But it is not the case, they sell this mid rang lens w/ high end price..it is kind of stupid....
So, I am using my Nikon lens w/ adapter and film. It is very fun to film with. And It work extremely well in a totally dark environment like inside the Ocean Park aquarium and the slog-2 is the best part of A7s I would say.

Since I do not own any sony EF lens and 4k external recorder, so I can not comment any auto focusing and 4k stuff.

Overall, small camera can shot good quality film.(Maybe better than BMPCC)

超高 ISO
靜音拍攝
十分輕便
對光線極靈敏

像數只有 1200萬像（但可以接受）

我用開 A6000，曾經昇上去 A7II，但最後都賣左部 A7II 留番部 A6000。

講真果句，論畫質，APS－C 同 FF 相差很微。
而FF 機雖然 WIDE D 影深深D，但 APS－C 機邊緣 SHARP D 影得遠D（1.5 FACTOR），各有功用。

直至用了 A7S 有很大的不同，你可以 手持 用 1/60 秒影夜景，可以放心大膽地用到 ISO 12800，加上靜音快門，給予了不一樣很好的感受。

1220 萬像好像很少，但其實以一般用家來說 足夠有餘，而且影像 FILESIZE 也少很多。講真， 1220萬 比 2400萬 感覺上好像 差一倍像素，但實際上 影像 長、闊 各邊只是相差只有 40%，（1.4*1.4＝1.96），1220萬像其實已經足夠有餘。

最後講多句，部機 對光線極靈敏，有時 影完後 看相，才發現很多沒有 留意的光暗細節！

超級強勁ISO
保持無反輕便

像素給比下去 (但仍覺得夠用)

只買了數日, 配上原用的Sony SEL18200天涯鏡, 感到比原來Sony A6000在我的攝影生態上得到3級躍進.

我崇尚便捷, body+天涯鏡是我一直的選擇, 但天涯鏡缺點就是低光表現差, 故由單反到現在無反年代總有些盲點.

A7S特別令我印象深刻, 是我解決了我對震震手, 可以在極低光環境下, 自由自在地用支天涯鏡遠近自如, 無需腳架, 一樣影到漂亮影像.

遲些再用多了再補充.

1. 抗高ISO係一大賣點！影相因為像素不高，推到過萬都完全冇問題；
2. 輕巧兼外型討好；
3. 因為Full Frame，轉mount可配老鏡來玩，變成了玩A7系列的特式。

1. 手感不算很好，其實A7, A7R都一樣；
2. 影相像素低，要放相印海報就難啲了；
3. 拍片抗低光在超過ISO6400的情況開始有noise，但其實ISO一萬水平左右仍可接受，當然如果放上大mon就真係差啲了。

其實我係拍片用家，先買咗A7R冇耐，才發現A7S，之後隔咗大半年，當想買嘅時候，又出咗A7II，糾結咗好耐，考慮之前A7R拍片唔係低光情況下都係冇乜問題，A7II又五軸防，就又推遲買A7S，現在先入A7S其實真係遲咗，但因為真係抗低光暫時係業界最強，又發覺唔係下下都可以打到燈，兼且4K(要另外買recorder)，放咗A7R就入咗。講返正題，A7S抗低光拍片我可接受嘅範圍係ISO6400左右，再推高放上大mon開始見微粒，不過已經好勁！我配70-200/F4小白G鏡，本身枝鏡都有防震，夜晚拍流浪貓絕對冇難度！講真，低光用大光圈唔係唔好，但有時拍片個後景太散未必啱要求，而且大光圈嘅鏡都唔平，睇得耐都暈啦。

淨係高iso 呢下已經攞哂分

呢個像素係呢個年代的確比較底，不過對我嚟講仍然夠用

首先我係拍片用家，用左成年其實對 A7S 又愛又恨，恨既唔關 A7S 本身問題，係 sony FE 鏡群真係好少，基本上定焦我已經用哂，最好用既係 28 F2.8，耐可光圈細得可憐，手動鏡對影小朋友真係加添難度，最後新買既 35 F1.4 ZA 又太大枝，失去最初買 A7S 既優勢-----最細 FF 機。

但愛既係佢既高 iso，當每次去旅行只帶一機一鏡時，就算幾黑暗無光的環境，無閃、無腳架、無石膏手之下，手持一樣可以連人帶景影低屋企人既一刻，所有缺點都變得微不足道，係我心目中 A7S 每個 iso 都係可用，如果你已經半接受iphone 6S 既質素，A7S 一定令你笑哂咀，由其是係拍片既時候，frame rate 已經固定在 1/25s 之下，A7S仍然可以記錄低你想要既細節，想要幾光就有幾光，之前用 5DII+35L真係少少低光已經影唔到，又或者 noise 多到慘不忍睹，不過日光日白時拍片，我仍然覺得 5DII+35L 靚過 A7S+35 F1.4 ZA，而影相質素基本上好接近。

最後覺得 A7S 拍片既 option setting 太多太detail，令用家無甘user friendly，(可能好多專業人仕鐘意)，但對於唔鐘意後製加工既家庭用家----我，反而麻煩左，總括而然，用過 A7S 既低光包你一試難忘。