o**s
发帖数: 3412 | 1 milky way and stars, 30s exposure or less, nice to have clean high iso
cameras and expensive big aperture lenses:)
star trails, better do many short exposures and stack (with software).
although 30min single exposure is not too bad.
what you need is called intervalometer, it is cheap and a lot of fun to have
, can use it for making time lapse movies.
check out "star circle academy", lots of tutorials. |
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z*c
发帖数: 4700 | 2 那哥们把参数说了，如下：
用LV，手动对焦，点测光。好像都是下午2-3点拍的，光线不是很好。后期就用LR加锐
，同时将背景做暗。具体参数如下
Exposure: 0.001 sec (1/1250)
Aperture: f/5.6
Focal Length: 100 mm
ISO Speed: 200
Exposure Bias: -1/3 EV
Flash: No Flash
Exposure Program: Aperture-priority AE
Date and Time (Original): 2010:03:14 14:58:04.60-07:00 |
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i*****e
发帖数: 5233 | 5 他并没有说 correct exposure 这个概念吧
曝光是一种手段而已
人家就想要肉眼看到的exposure，你非给提到摄影的correct exposure的境界。 |
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s**********s
发帖数: 4255 | 6 是隔着玻璃照的，光线多弱不好形容，看exif可能可以估计一下。
Exposure Time: 1/25 sec
F-Number: f/5.6
Exposure Program: Aperture Priority
ISO Speed Rating: 1600
Lens Aperture: f/5.7
Exposure Bias: 0 EV |
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v***a
发帖数: 23651 | 7 f1.8-2.5,可以升级s95/lx5了
Conclusion - Pros
* Fastest (brightest) zoom lens of any current compact
* Really useful 28-112mm lens range
* Lens impressively sharp with generally good corner sharpness at wide apertures
* Reliable exposure metering and great color response make it easy to get good images
* Good high ISO capability for a small-sensor camera (and rarely needed thanks to the bright lens)
* AF illuminator helps in low light
* Simple control system still gives hig... 阅读全帖 |
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R***a
发帖数: 41892 | 8 http://forum.xitek.com/showthread.php?threadid=884437
??pentaxforums???:
World's Smallest and Lightest Interchangeable Lens Digital Camera
The Q represents an evolution in interchangeable lens digital camera design,
featuring the world抯 smallest and lightest body. Experience the PENTAX Q.
The Camera. Evolved.
Q-Mount Lens System
The Q features the newly designed PENTAX Q-mount lens system for convenient
interchangeability with a variety of specialty Q lenses. Choose from a
selection of prime, zo... 阅读全帖 |
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a***a
发帖数: 40617 | 9 写raw文件时间爆长，中间还不能有任何操作。。。
Unfortunately, though, the X100's operational speed is rather spoiled by one
quite fundamental flaw. The camera locks-up all of its button-driven
operations while it's writing files to the memory card, and if you're
shooting RAW this can take up to 7 seconds, even with a reasonably fast SD
card. You can still autofocus or change the shutter speed, aperture, and
exposure compensation, but during this time you can't change the ISO, switch
between the OVF and EVF, focus man... 阅读全帖 |
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n**b
发帖数: 13203 | 10 原文。。。
New Nikon's Are Coming-FINALLY!
by Bryan Peterson on Wednesday, July 6, 2011 at 10:26am
First I am NOT on Nikon's payroll-never have been! I buy ALL of my Nikon
gear, just like most of you!
I do however have "friends" on the inside and although this news is coming
from my French "inside" friend, it is more reliable then all of the other
Nikon rumor's that have been swirling about for the past two years! Since I
have never jumped on the rumor bandwagon, UNTIL NOW, you just might be
tempted ... 阅读全帖 |
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s*****e
发帖数: 21415 | 11 ☆─────────────────────────────────────☆
Ranma (ranma 1/2) 于 (Wed Jun 22 15:45:19 2011, 美东) 提到:
http://forum.xitek.com/showthread.php?threadid=884234
1/2.3" 12M BSI
跟我估计的一样
1. Q是这个微型的NC-1是APS-C的，而不是以前说的。因为Q这个名字明显更加接近消费级
2. 感光器是1/2.3" BSI CMOS而不是1/2.33" CCD，因为1/2.33"这个规格是
松下的，P1从来没用过P2的感光器。另外CCD连拍忒慢，正确的选择是用CMOS
☆─────────────────────────────────────☆
mak007 (粉之深黑之切) 于 (Wed Jun 22 15:46:55 2011, 美东) 提到:
到底是apsc还是1/2.33？
☆─────────────────────────────────────☆
Ranma (ranma 1/2) 于 (Wed ... 阅读全帖 |
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z****6
发帖数: 10776 | 12 http://photo.net/medium-format-photography-forum/003fXv?start=2
Here is a comparison based on my 7 and 7II.
The 7II has the following improvements over the 7:
1) A relocated cable release socket (The 7's is by the button release, the
7II is on the lower side of the left hand grip.).
2) An improved darkslide curtain winder. The 7II has a flip down winder, the
7 has a recessed knob. I have to remove the 7 from the tripod to engage the
curtain and change a lens. I use the RRS tripod plate and it co... 阅读全帖 |
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g*****n
发帖数: 21539 | 13 非诚勿扰女嘉宾啊， 居然是个S9500， 那什么， 茶大师呢
Camera Maker: FUJIFILM
Camera Model: FinePix S9500
Image Date: 2011-09-25 12:02:10 (no TZ)
Focal Length: 6.8mm
Aperture: f/2.9
Exposure Time: 0.025 s (1/40)
ISO equiv: 400
Exposure Bias: none
Metering Mode: Matrix
Exposure: program (Auto)
White Balance: Auto
Flash Fired: No (enforced)
Orientation: Normal
Color Space: sRGB
GPS Coordinate: undefined, undefined
Copyright:
Software: Microsoft Windows Photo Viewer 6.1.7600.16385 |
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m*z
发帖数: 3102 | 14
Camera Maker: Canon
Camera Model: Canon EOS REBEL T2i
Lens: Canon EF 50mm f/1.8 II
Image Date: 2011-11-01 00:14:26 (no TZ)
Focal Length: 50mm
Aperture: f/2.8
Exposure Time: 0.067 s (1/15)
ISO equiv: 3200
Exposure Bias: +0.33 EV
Metering Mode: Matrix
Exposure: aperture priority (semi-auto)
White Balance: Manual
Flash Fired: No (enforced)
Orientation: Normal
Color Space: sRGB
GPS Coordinate: undefined, undefined
Software: QuickTime 7.6.6
厉害~~(1/15) 60下很易糊的~~ |
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n**b
发帖数: 13203 | 15 好消息，从Poll来看，发生的概率只有40%，还不到一半！
Some X100's have a factory fault which causes their aperture blades to stick
. Has your camera been so cursed?
1. No, my camera is quite new (under 500 exposures) and all seems well at
present (70 votes [16.83%])
2. No, my camera has some mileage on it (over 500 but under 5,000
exposures) and all is still well (141 votes [33.89%])
3. No, my camera is a work horse with more than 5,000 exposures and still
work perfectly (35 votes [8.41%])
4. Yes, the apert... 阅读全帖 |
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a*********a
发帖数: 3656 | 16 dude, I don't think you understand that figure. it has nothing to do with
correctness of exposure. any exposure will have highlighs and shadows, unless it is an exposure of just a grey card. each of those curve spans the whole dynamic range of the image.
the horizontal is the brightness, the vertical is S/N. what it says is that
even at high ISO, highlights are still shot noise limited. but shadows are
read noise limited. while at low ISO, almost the entire dynamic range of the
image is shot noi... 阅读全帖 |
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d******n
发帖数: 3014 | 17 Photo Rumors
Photography news, before it happens
Home
eBay Finds
Reviews
Rebates
Nikon Rumors
Leica Rumors
Send Tips
Sony RX1 full press release
By PR admin | Published: September 11, 2012
Here is the full press release for the Sony RX1 full frame compact camera:
Sony Introduces the World’s First Full-Frame Compact Digital Camera
New Compact Cyber-shot? RX1 Camera features 35mm full-frame image sensor and
wide aperture f/2 lens
SAN DIEGO, Sept 12, 2012 – For the first time, all the benefits of f... 阅读全帖 |
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g******z
发帖数: 5809 | 18 The new Leica M is the most innovative and versatile M-Camera that the
modern M-System has ever created.
It unites decades of experience in rangefinder technology with
groundbreaking digital technologies: It features a completely newly
developed high-resolution full-format CMOS sensor that, in combination with
its high-performance processor and the legendary M-Lenses, delivers
outstanding imaging results. With Live View, video, and new additional
focusing methods, it is also the M for photograph... 阅读全帖 |
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z****6
发帖数: 10776 | 19 http://us.leica-camera.com/assets/file/download.php?filename=fi
Technical data LEICA M-E
(Last revised September 2012 / We reserve the right to make technical
changes)
Product
Unique Product
Name: Leica M-E (Typ 220), anthracite grey paint
Camera type: Compact digital view and rangefinder
system still camera
Lens mount: Leica M bayonet with additional sensor for 6-bit coding
Lens system: Leica M lenses
Top Cover: Milled brass top cover with classic Leica M design
Material: All-metal case made of... 阅读全帖 |
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M**X
发帖数: 3014 | 20
这是用D600拍的
Equipment Make NIKON CORPORATION
Camera Model NIKON D600
Copyright
.
Creation Software ACD Systems 数码成像
Color Representation sRGB
Flash Mode
Focal Length 85 mm
F-Number F/4.5
Exposure Time 1/160 sec.
Metering Mode Pattern
Light Source Unknown
Exposure Program ... 阅读全帖 |
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r*******d
发帖数: 958 | 21 一铁丝朋友，业余选手，nikon的相机镜头除了大炮基本摸遍了，
最近卖了他D700,D7000,D300s，入了D800,D600。
下面是他邮件中回复我D600怎么样。 分享一下，觉得有用的赏个包子
Generally, I like the D600 the best of all I have tried: D90,D300, D300s,
D700,D7000, even D800 (and of course, D3200)
What’s good:
Lighter and smaller (sort of) than D700,D800
Has same autofocus as D800, (but has fewer points and they are crammed more
in the center)
Makes great JPEGS, auto white balance and auto iso work really well
$1000 less than a D800
Has the user defined U1 U2 buttons if th... 阅读全帖 |
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f**s
发帖数: 968 | 22 链接在此：
http://www.kenrockwell.com/tech/8mm-f35.htm
8mm f/3.5 Fisheye
Pro-Optic, Samyang, Rokinon, Bower &c. (2009-)
© 2010 KenRockwell.com. All rights reserved.
Intro Specs Performance Compared Recommendations
8mm f/3.5 Fisheye, Pro-Optic Nikon AI-s version. enlarge. ($290, Korean, no
filters, 13.8 oz./391g). This one came from this link to it at Adorama (also
specifically in Nikon, Canon EOS, Pentax/Samsung and Minolta Maxxum/Sony
mounts). It also comes branded as Bower, also specif... 阅读全帖 |
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e**n
发帖数: 5876 | 23 恩. 8倍好算一点. 正好3当
这个就要引用我在rx100很美一贴里提到的概念, 总通光量:
The total light is the total amount of light that falls on the sensor during
the exposure (Total Light = Exposure · Effective Sensor Area) and is
measured in units of photons, or, equivalently, lumen·seconds.
sensor A 的面积是sensor B的8倍. (Total Light = Exposure · Effective Sensor
Area) Effective Sensor Area是8倍大, 总通光量也是sensor A是B的8倍. 在sensor
efficiency一样的前提下(同样sensor技术), 自然高感好3档 |
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b****1
发帖数: 3685 | 24 Camera Maker: Panasonic
Camera Model: DMC-GH2
Lens: LUMIX G VARIO 100-300/F4.0-5.6
Image Date: 2012-08-12
Focal Length: 162.0mm (35mm equivalent: 324mm)
Aperture: f/6.3
Exposure Time: 0.0008 s (1/1250)
ISO equiv: 160
Exposure Bias: none
Metering Mode: Spot
Exposure: aperture priority (semi-auto)
White Balance: Auto
Flash Fired: No (enforced)
GPS Coordinate: undefined, undefined
Software: Adobe Photoshop Lightroom 4.1 (Windows) |
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w****e
发帖数: 2210 | 25 Take a look at the list of ALL 51 improvements the X20 has over the X10,
1. 2/3-inch X-Trans CMOS II sensor without optical low pass filters improves
resolution to as much as a 4/3″ sensor.
2. S/N ratio improved to level similar to Full frame sensors.
3. Phase detection AF allows for AF speeds as low as 0.04secs (compared to
X10 0.16secs).
4. 1080p HD video @ 60fps (X10 1080p HD video @ 30fps).
5. Phase detection Autofocus also works during movie recording.
6. Face detection works during movie r... 阅读全帖 |
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b*****t
发帖数: 3928 | 26
Exif data
Camera Nikon D300
Exposure 0.002 sec (1/640)
Aperture f/7.1
Focal Length 11 mm
ISO Speed 200
Exposure Bias +2/3 EV
Software ViewNX 2.7 W
Exposure Program Aperture-priority AE |
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l*****s
发帖数: 1754 | 27 I don't have the originals with me.
Here is a list of things I do to every photo.
1.Pick out the worth editing photos.
I am using a machine gun approach to shooting. I will be shooting on average
5 photos a minute once I start shooting. So in 30 minutes, I could end up
with 150 photos. I will export small photos and send to client and ask them
to pick 5, and then I pick 3 out of the 5 to retouch. I quickly look through
and rate 1 star for all possible picks, then do a second pass, and rate 2
sta... 阅读全帖 |
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k**o
发帖数: 3006 | 28 ☆─────────────────────────────────────☆
poise (偶买糕的(oh my god)) 于 (Mon Mar 25 15:39:51 2013, 美东) 提到:
发现中间点测衣服容易过曝，评价测光under-exposure
加闪光灯评价测光，ettl下闪光灯减少到最少，还是过曝，很郁闷
☆─────────────────────────────────────☆
Judsonzhao (Judsonzhao) 于 (Mon Mar 25 15:45:57 2013, 美东) 提到:
不要直接轰啊, 或者调到广角端
相机上曝光补偿降1个stop
最好还是买个小soft box/ diffuser
☆─────────────────────────────────────☆
poise (偶买糕的(oh my god)) 于 (Mon Mar 25 15:46:33 2013, 美东) 提到:
yes, I use softbox
☆─────────────────────────────────────☆
... 阅读全帖 |
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w**7
发帖数: 5258 | 29 • 24 effective mega-pixels in an APS-C sized CMOS sensor
Designed for the demanding photographer, the K-3 features 24 effective
megapixels in an APS-C sized CMOS sensor for outstanding high resolution
imagery. By coupling this sensor with a newly developed PRIME III imaging
engine with high-efficiency noise and image processing capacities and an
anti-aliasing filter-less design, the K-3 delivers high-resolution, fine-
gradation images.
• Selectable Anti-Aliasing Filter
Enjoy the w... 阅读全帖 |
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o**s
发帖数: 3412 | 30 both.
trust me it is not easy.
拍摄 needs a lot of planning and waiting. a lot of places are hard to get to
, have to hike in dark (for sunrise AND after sunset), especially if you
want something unique. And you have to get lucky. Sometimes a cloudy day
gives you nothing sometimes everything.
I am just a beginner but already know how much it takes. and trust me, for
every photo he publish, he has taken 1000 that are not published. He might
have visited the same place again and again.
as for post p... 阅读全帖 |
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o**s
发帖数: 3412 | 31 Yes, #3, and 2nd to last one are single exposures, rest are all some kind of
hand blending with two exposures (from a single raw file). I am very
conservative though so the two
exposures are not too different. |
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L*****W
发帖数: 59 | 32 我现在有nex5 (最早的型号，不带字母的），配了一个35mm f1.8的镜头。现在觉得拍
娃主要有三个个问题。
第一个问题是对焦，nex5经常out of focus。读过评测，a6000这方面应该没问题吧？
第二个问题是exposure不是很准确。经常under exposed,而且连拍的时候exposure也不
一样（没锁exposure)。
第三个问题是觉得jpeg的颜色一般，white balance也不是很准确。自己也不想花时间
处理raw的照片。
请问a6000第二个和第三个问题是不是解决的很好？ |
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t******k
发帖数: 5617 | 33 PDATE:
Please see the changes to the “Identification Procedure” section below
regarding criteria for affected serial numbers. The identification method
has been enhanced to include the first digit in the identification procedure
in order to more precisely identify affected products.
Thank you for using Canon products.
Concerning the EOS 5D Mark III digital SLR camera, when the LCD panel
illuminates in extremely dark environments, the displayed exposure value may
change. Canon has concluded the i... 阅读全帖 |
|
y*b
发帖数: 3190 | 34 "The X-T10 will be announced on May 10 and those are the 100% bulletproof
leaked specs:
– 16.3MP APS-C X-Trans CMOS II sensor
– Ultrasonic sensor cleaning mechanism
– Continuous shooting 8 frames / sec in the AF tracking
– Upper limit of the ISO sensitivity 51200
– Automatic scene recognition auto mode
– Intelligent hybrid AF of AF 0.08 seconds. AF point is 49 points
– EVF is 2.36 million dots. 100% field of view, magnification 0.62 times.
Time lag is 0.005 seconds
– Start-up time of 0.5 seconds... 阅读全帖 |
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m*******n
发帖数: 519 | 35 和全幅比，DR还是差很多啊。下面这个链接说的有点意思，曝光不足的片子，push 5
stop起来，D800还是领先啊。
http://www.dpreview.com/forums/thread/3995131
“Did a quick test on DR at ISO100. The left side has correct exposure (
ISO100, 1/200s, f/2.8), right side is under exposure for about 5 stops (
ISO100, 1/6400s, f/2.8), and +5 stop in exposure in Photoshop. DR at ISO100
is roughly as D800 > D500 >=D4 > D5 according to my observation.” |
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G*******g
发帖数: 3729 | 36 你试试，据说关了也不行。
UPDATE: June 8, 2017: Sony has released a new firmware update (4.00 for the
a7RII and 3.00 for the a7SII) that purportedly provides a fix for the Star
Eater Issue. The firmware update notes mention the change “Improves image
quality when Long Exposure NR setting is OFF.” The change presumably allows
users to now disable the Star Eater algorithm as long as the Long Exposure
NR setting is set to OFF. Previously, the Star Eater spatial filtering was
enabled even if the Long Exposure NR... 阅读全帖 |
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l*****o
发帖数: 19653 | 37 尼玛，真的啊。。。
http://en.wikipedia.org/wiki/Digit_ratio
The digit ratio is the ratio of the lengths of different digits or fingers
typically measured from the midpoint of bottom crease where the finger joins
the hand to the tip of the finger.[1] It has been suggested by some
scientists that the ratio of two digits in particular, the 2nd (index finger
) and 4th (ring finger), is affected by exposure to androgens e.g.
testosterone while in the uterus and that this 2D:4D ratio can be considered
a crude ... 阅读全帖 |
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b*s
发帖数: 82482 | 38 够呛：
Painful exposures to capsaicin-containing peppers are among the most common
plant-related exposures presented to poison centers.[citation needed] They
cause burning or stinging pain to the skin and, if ingested in large amounts
by adults or small amounts by children, can produce nausea, vomiting,
abdominal pain, and burning diarrhea. Eye exposure produces intense tearing,
pain, conjunctivitis, and blepharospasm.[46]
When used for weight loss in capsules, there has been a report of heart
atta... 阅读全帖 |
|
y****i
发帖数: 12114 | 39 https://en.wikipedia.org/wiki/Nitrous_oxide#Health_hazards
Safety[edit]
The major safety hazards of nitrous oxide come from the fact that it is a
compressed liquefied gas, an asphyxiation risk, and a dissociative
anaesthetic.
Health hazards[edit]
While relatively non-toxic, nitrous oxide has a number of recognized ill
effects on human health, whether through breathing it in or by contact of
the liquid with skin or eyes.
Nitrous oxide is a significant occupational hazard for surgeons, dentists,
a... 阅读全帖 |
|
r*s
发帖数: 2555 | 40 Sperm counts of men in North America, Europe, Australia and New Zealand are
plunging, according to a new analysis published Tuesday.
Among these men there has been a 52% decline in sperm concentration and a 59
% decline in total sperm count over a nearly 40-year period ending in 2011,
the analysis, published in the journal Human Reproduction Update, said.
Researchers led by Dr. Hagai Levine of Hebrew University of Jerusalem
examined thousands of studies and then conducted a meta-analysis o... 阅读全帖 |
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r*s
发帖数: 2555 | 41 尼玛87篇参考文献就不能加一篇施教授或能教授的CNS？
References
1. Ruska, E., Nobel Lectures, Physics 1981-1990, Tore Frängsmyr and
Gösta Ekspong, Eds. (1993) World Scientific Publishing, Singapore
2. Marton, L. (1934) Electron microscopy of biological objects. Nature
133, 911-911
3. Althoff, T., Mills, D. J., Popot, J. L., and Kühlbrandt, W. (2011)
Arrangement of electron transport chain components in bovine mitochondrial
supercomplex I1III2IV1. The EMBO Journal 30, 4652-4664
4. Letts, J. A., Fied... 阅读全帖 |
|
o**s
发帖数: 3412 | 42 Shoot in raw, then post process to adjust white balance.
Or adjust the white balance by going to menu, decrease yellow increase blue
or vice versa for each pre-set.
For exposure, sometimes the light meter is not very smart and under exposure
photo. If you use Av mode, for example, can adjust the light meter, move to
the right for 1/3 - 1 stop. What is the exposure time? keep it faster than
1/30 with IS function on, otherwise will blur.
I find if use an external flash, bounce against the wall, i ... 阅读全帖 |
|
x********u
发帖数: 15396 | 43 just be safe bah
http://www.cdc.gov/rabies/exposure/type.html
"Any penetration of the skin by teeth constitutes a bite exposure."
"The contamination of open wounds, abrasions, mucous membranes, or
theoretically, scratches (potentially contaminated with infectious material
from a rabid animal) constitutes a nonbite exposure." |
|
j***k
发帖数: 2719 | 44 just one more thing to consider about MS.. that is fund manager's mentality.
.
when a fund manager needs some exposure to the financial sector, there are
basically just 2 options, GS or MS... not only they are the benchmark for
the financial sector, right now, they are only 2 pure investment banks (teir
1) left.. in the past few years, if a manager wants to seek short exposure,
they would normally pick MS instead of GS, as GS has been doing way better.
.. Now since the entire financial sector ha... 阅读全帖 |
|
m***t
发帖数: 4509 | 45 靠，我傻x了，2011是征文啊。
我就不参加征文了，不过我2011年是胜利的一年，愉快的一年啊！
新年第一天结束后我就结束了6周无薪产假去上班，本来还想在原来公司看看能不能换
到一个比较能学东西的组去，结果这边的头儿不让去，整天让我干垃圾活（头儿们有内
部小斗争），所以我就准备5月开始面试换工作，结果还没找呢，在猎头们刚开始联络
我的时候，经友人推荐，找到了现在这个工作。现在办公室在我老公公司过一条街的地
方，可以每天走路上下班，感到太爽了。
辞职的时候，正好该发bonus，我原来公司的同事都跟我说老板一定会想办法赖掉bonus
（我们原来老板人很小气，恶名在外），让我一定等到奖金发完再走，但我当时想奖金
如果已经评完，该给他就会给的，当时bonus的确已经评完了，按日子走的那天应该就
可以拿。其实没有多少钱，但我同事们纷纷对我说：不要便宜了老板，你的bonus是你
该拿的，去问他要！所以走的时候我问老板去要拿bonus，我想反正没几个钱，要不到
就算了。结果要得很是dramatic啊。哈哈。摘抄我自己开心网的日记：
我去CEO的办公室，问: Hello, XXX, HR said y... 阅读全帖 |
|
j******6
发帖数: 121 | 46 Managing Actuary
The Actuarial Department at Blue Cross Blue Shield of North Carolina (BCBSNC
) is looking for motivated actuaries interested in transforming the
healthcare delivery system to join our talented team on our Durham, North
Carolina campus. Actuaries desiring the opportunity to collaborate with
providers, health systems and other industry stakeholders to ensure better
quality and more affordable care for our members will be a great fit for
this role. This role will be highly visible ... 阅读全帖 |
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