Wiiroro wrote:
老爸出錢！？那當然選...(恕刪)
大大....既然老爸出錢,那當然就要能凹盡量凹.....
當然是從下面幾台去挑.....
1Ds-mk3 , D3 , A900 ( 未上市,要等一等...不過應該不會太久 )
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有一筆預算鏡頭當然是要凹好料的
好的鏡頭比較保值
而且看情形現在不凹鏡皇以後自己不知買不買的下手..........
現在買比較不會遺憾
至於機身中階即可
第一機身不保值
所以更高階的機身不考慮
什麼D3大小兔甚至5D跟D300年後跌幅都很嚇人
APSC現在技術成熟成相都很優了
另外要買很多好鏡湊齊焦段似乎也不像初學者會作的~除非預算無上限
先買一顆通用的先
小弟個人建議總額應都在6萬左右(水)鏡頭各有特色
1.A700+16-80蔡司
買SONY當然是要試試蔡司的威力,5倍的變焦適用性廣,一機一鏡的好組合
買24-70太奢侈~且廣角端不是很夠
2.40D+17-55/2.8IS
17-55這顆畫質比美L鏡的APSC鏡皇 大光圈還有防手振比起N家超值許多
3.FUJI S5PRO+18-200VR(16-85VR)
D300單機身就要5萬似乎貴了一點,改買這台機身等級類似,JPEG直出優良,人像也很優
至於鏡頭買N家旅遊鏡皇好了~這顆焦段最廣旅遊相當方便,別家也沒有原廠可玩
不推薦17-55只是因為貴1萬多~比起C家差了一點(買D80+N17-55不如買2)
4.O家E520+餅乾鏡+12-60SWD
(當然E420+餅乾鏡+萊卡14-150也很優~只是萊卡不太好買可能要去日本才有)
新推出的這款平時配餅乾鏡有隨身機的輕小方便~要專業出動12-60這顆畫質焦段也令人滿意
L10賣現在這個價格又太貴了,未降價前不太推薦
5.P家K20D+16-50/2.8
老實說買這個小弟認為不如買2,畢竟電子性能有差一點,擴充性我認為暫時還不用考慮那麼多
何況C家又沒比較少反而選擇更多........
以上是小弟一點淺見
不討論手感發色等比較個人偏好方面的價值
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轉貼：
德國 FOTO Magazine 5月 AF center point 公布測試
Source: fotoMAGAZIN (Germany) (fotoMagazin), Nr. 5/2008, p30ff.
We have a winner, Sony A700
http://www.pentaxforums.com/forums/pentax-news-rumors/25521-magazine-review-k20d-sdm-af-c-performance-vs-8-competitors-good-info.html
Magazine Review: K20D/SDM AF.C performance vs. 8 competitors (Good Info!)
Hi everybody.
As a servive to the forum, I will cite from a magazine review. Don't know if it has been published elsewhere already. I will limit this initial post to the pure facts.
(c) This is my own wrap-up and must not be copy-pasted to another forum/blog.
Summary:
- Good/near scientific test with credible results
- Good choice of gear
(e.g.: K20D with DA* 50-135mm f/2.8 SDM lens -- first K20D/SDM AF test ever!)
- K20D came in last but still close enough to the rest of the pack, i.e., still good.
Source: fotoMAGAZIN (Germany) (fotoMagazin), Nr. 5/2008, p30ff.
Results
Gear:
40D: Canon 40D + EF 70-200 f/2.8 L IS USM (3230,- € German list price)
1D: Canon 1D-mkIII + EF 70-200 f/2.8 L IS USM (6390,- € German list price)
1Ds: Canon 1Ds-mkIII + EF 70-200 f/2.8 L IS USM (10290,- € German list price)
D80: Nikon D80 + Nikkor 70-200 f/2.8 VR G IF-ED (3260,- € German list price)
D300: Nikon D300 + Nikkor 70-200 f/2.8 VR G IF-ED (4120,- € German list price)
D3: Nikon D3 + Nikkor 70-200 f/2.8 VR G IF-ED (7140,- € German list price)
E3: Olympus E3 + Zuiko 50-200 f/2.8-3.5 ED SWD (3100,- € German list price)
K20: Pentax K20D + DA* 50-135mm f/2.8 ED IF SDM (2180,- € German list price)
A700: Sony Alpha 700 + 70-200 f/2.8 G SSM (3800,- € German list price)
(Order and prices as chosen by original print, K20 has best price in the field due to affordable DA* lens.)
Result (Test #4 -- Relative ratio of out-of-focus shots, central AF):
A700: 2.1 %
40D: 6.4 %
D3: 9.2 %
D300: 10.0 %
1D: 11.7 %
1Ds: 14.3 %
E3: 17.8 %
D80: 23.2 % (but 10.7 % with multi-field AF)
K20: 25.6 % (and 43.6 % with multi AF)
Result (Test #3 -- Absolute number of in-focus shots, central AF):
1D: 30.2 images
D3: 21.6 images
40D: 20.6 images
A700: 15.3 images
1Ds: 15.0 images
D300: 13.5 images
D80: 8.6 images (10.7 with multi AF)
E3: 7.4 images
K20: 5.8 images
3.7 images (with multi-field AF, other multi-field AF results ommitted here)
Method:
Continous shots (burst, continous AF aka AF.C) of an approaching red Chrysler PT cruiser, tripod mounted and panned centering onto radiator grill. Photograph besides road. Road straight. Test done on a closed military airport.
Controlled speed: 100 km/h (62 mph).
Starting photo burst at 100m distance (109 yards, 328 ft). Stopping when passing by.
Time to drive through 100m: 3.6s.
Focal length: 35mm equivalent of 200mm (135mm for K20).
Aperture: f/2.8 or widest (Olympus).
Shutter: 1/320 or shorter.
Light: Daylight overcast with grayness. Constant conditions.
Storage: JPEGs onto Sandisk Extreme III.
Statistics: 6 series, averaged.
Short verdict (mine):
While the K20 comes out last, it did do its job surprisingly well after reading all the complaints around. We all don't position the K20 as the sport photographer's machine gun and rightly so with only 20% of the available peak performance on the market (1D).
However, it is more than sufficient for everyday photography with ~75% of images in focus.
If I may make my personal scale:
Outstanding: 95-100% (relative ratio of in-focus shots)
Excellent: 85-95%
Good: 75-85%
Average: 25-75%
Poor: 0-25%
Then I get:
Outstanding: A700
Excellent: 40D, D3, D300, 1D, 1Ds
Good: E3, D80, K20
Nothing to complain about. Of course, this is a representative test for AF.C performance (probably the best been published to date). It is nowhere indicative for low light AF.S performance.
Note: If you found this reading worth your time, you may also like our forum friend's lol101 post here:
K20D AF tracking: a non scientific test.
He found a 96% in-focus rate for K20 vs. only 25% for K10.
The article contains more information. So if the discussion needs it, it may provide some more info (e.g., the D300 results were said to have shown large variations).
Enjoy.
So the a700, on paper, has the best single focus point in the market of any DSLR, the center point. It's a dual cross with an f2.8 strip, however the peripheral sensors are only line sensors (worst!).
In comparison, Canon 40D has single cross for all points and an f2.8 strip in the center. D300 just has a bunch of single cross in the center regions, lines in the peripheral (though 51 total). Olympus E-3 has dual cross everywhere, but no f2.8 strip.
The A700 AF tested faster than than the 40D and the D300 down to 3EV which is lighted streetscenes ..
That says a lot about Sony's work on the A700
Look at the AF speed stats on the last page of review and compare the numbers..
Unless UI read it wrong
Above EV 3
A700 beats 40D and D300
Below EV 3 A700 is the #3 and D300 is #1
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