File:Microwave Apparatus - Jagadish Chandra Bose Museum - Bose Institute - Kolkata 2011-07-26 4051.JPG : Soft.lk - A Premium Software Developers - Meet one of the most powerful and intuitive POS systems for retail in Sri Lanka

Galena point-contact detector inside horn antenna

File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	04:51, 9 March 2012		4,288 × 2,848 (5.76 MB)	Gangulybiswarup

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Camera manufacturer	NIKON CORPORATION
Camera model	NIKON D90
Exposure time	1/60 sec (0.016666666666667)
F-number	f/4.2
ISO speed rating	800
Date and time of data generation	16:06, 26 July 2011
Lens focal length	28 mm
User comments	Biswarup Ganguly
Orientation	Normal
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	ViewNX 2.2 W
File change date and time	12:39, 7 March 2012
Y and C positioning	Centered
Pair of black and white reference values	0 255 0 255 0 255
Exposure Program	Not defined
Exif version	2.3
Date and time of digitizing	16:06, 26 July 2011
Meaning of each component	Y Cb Cr does not exist
Exposure bias	0
Maximum land aperture	4.1 APEX (f/4.14)
Metering mode	Pattern
Light source	Unknown
Flash	Flash fired, strobe return light detected, compulsory flash firing
DateTime subseconds	00
DateTimeOriginal subseconds	00
DateTimeDigitized subseconds	00
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	Auto white balance
Digital zoom ratio	1
Focal length in 35 mm film	42 mm
Scene capture type	Standard
Scene control	Low gain up
Contrast	Normal
Saturation	Normal
Sharpness	Normal
Subject distance range	Unknown
GPS tag version	0.0.2.2