File:Greenhouse Vent Fan (2737319720).jpg
Original file (2,571 × 2,745 pixels, file size: 5.93 MB, MIME type: image/jpeg)
Captions
Summary
editDescriptionGreenhouse Vent Fan (2737319720).jpg |
The vent fan pulls hot air out of the greenhouse to keep it at a reasonable temperature. Ventilation is more important than heat in a greenhouse. I once closed the doors on my greenhouse and turned off the fan in February, outside temperature around 30 F. After a couple of sunny hours the thermometer inside the greenhouse was pinned at 135 F. The screen keeps stray fingers out of the fan. Also stray cats. |
Date | |
Source |
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Author | Dwight Sipler from Stow, MA, USA |
Licensing
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This image, originally posted to Flickr, was reviewed on 21 March 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:59, 21 March 2013 | 2,571 × 2,745 (5.93 MB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:Jacopo Werther |
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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 |
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Camera model | NIKON D3 |
Author | Dwight Sipler |
Copyright holder |
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Exposure time | 1/160 sec (0.00625) |
F-number | f/11 |
ISO speed rating | 800 |
Date and time of data generation | 14:42, 5 August 2008 |
Lens focal length | 38 mm |
User comments |
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Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Ver.2.00 |
File change date and time | 20:50, 5 August 2008 |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Date and time of digitizing | 14:42, 5 August 2008 |
APEX shutter speed | 7.321928 |
APEX aperture | 6.918863 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTimeOriginal subseconds | 66 |
DateTimeDigitized subseconds | 66 |
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 | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 38 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Width | 2,571 px |
Height | 2,745 px |
Lens used | 24.0-70.0 mm f/2.8 |
Keywords |
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IIM version | 2 |