File:9-Week Human Embryo from Ectopic Pregnancy.jpg
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Summary
[edit]Description9-Week Human Embryo from Ectopic Pregnancy.jpg |
English: 9-Week Human Embryo from Ectopic Pregnancy (7th week p.o.)
The size and anatomic features suggest development equivalent to a nine-week pregnancy (or seven weeks post ovulation).
In obstetrics, pregnancy is dated from the first day of the last menstrual period, which is about two weeks prior to the ovulation that resulted in the pregnancy. For the photo, I immersed the formalin-fixed specimen in absolute alcohol (which, because of its low specific gravity, allows the specimen to firmly sink to the bottom of the dish and not float around). I shot the picture with an expensive Nikon D2X, but I used an old, worn, cheap Nikkor f/4 manual-focus 105mm macro lens, courtesy of the eBay shopping experience. In this case, I added a Nikkor 1.4X tele-converter, which gave me just the right image size and working distance. The picture would have been fine without the tele-converter, requiring just a little mote cropping. Español: Embrión humano de 9 semanas del embarazo ectópico El tamaño y las características anatómicas sugieren un desarrollo equivalente a un embarazo de nueve semanas (o siete semanas después de la ovulación). En obstetricia, el embarazo está fechado desde el primer día del último período menstrual, que es aproximadamente dos semanas antes de la ovulación que resultó en el embarazo. Para la foto, se sumergió la muestra fijada con formalina en alcohol absoluto (que, debido a su baja gravedad específica, permite que la muestra se hunda firmemente en el fondo del plato y no flote). Se grabó la imagen con una costosa Nikon D2X, pero utilizando una lente macro de 105mm de foco manual Nikkor f/4, vieja y gastada y barata, cortesía de eBay por la compra. En esta situación, se agregó un teleconvertidor Nikkor 1.4X, que proporcionó el tamaño de imagen y la distancia de trabajo correctos. La imagen resultante quedó bien, requiriendo sólo un pequeño recorte. |
Date | |
Source | 9-Week Human Embryo from Ectopic Pregnancy |
Author | Ed Uthman from Houston, TX, USA |
Permission (Reusing this file) |
CC BY 2.0 |
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This image was originally posted to Flickr by euthman at https://www.flickr.com/photos/78147607@N00/548063929. It was reviewed on 17 June 2013 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
17 June 2013
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:10, 17 June 2013 | 2,054 × 3,081 (2.49 MB) | Jacopo Werther (talk | contribs) | Original High-resolution image with EXIF Data | |
20:31, 14 June 2007 | 683 × 1,024 (242 KB) | Patho (talk | contribs) | == Summary == {{Information |Description='''9-Week Human Embryo from Ectopic Pregnancy''' The size and anatomic features suggest development equivalent to a nine-week pregnancy (or seven weeks post ovulation). In obstetrics, pregnancy is dated from the f |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
---|---|
Camera model | NIKON D2X |
Exposure time | 1/4 sec (0.25) |
F-number | f/8 |
ISO speed rating | 100 |
Date and time of data generation | 09:23, 14 June 2007 |
Lens focal length | 105 mm |
Author | Picasa 2.6 |
Orientation | 0 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Ver.1.01 |
File change date and time | 09:23, 14 June 2007 |
Y and C positioning | Co-sited |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Date and time of digitizing | 09:23, 14 June 2007 |
Meaning of each component |
|
Image compression mode | 4 |
APEX exposure bias | 0.33333333333333 |
Maximum land aperture | 0 APEX (f/1) |
Metering mode | Center weighted average |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 26 |
DateTimeOriginal subseconds | 26 |
DateTimeDigitized subseconds | 26 |
Supported Flashpix version | 1 |
Color space | Uncalibrated |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 157 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Unique image ID | 2645344719b098ca4a554d4e2118830d |
GPS tag version | 0.0.2.2 |