Wednesday 27 July 2016
Understanding About ISO Sensitivity in simple ways
The ISO (International Standards Organization) determines the
sensitivity of the sensor in camera. ISO determine the exposure of a photo,
along with aperture and shutter speed.
 |
| Camera 3 main Features The iso rating typically rangs start from 25 ,50, 100 to continues to double from this point: : 100, 200, 400, 800, 1600, 3200, 64,000, etc.  |
ISO
Speed vs motion Blur
The lower ISO rating means ,this producing a smoother,
cleaner image.
The lower the ISO rating, the less sensitive the image
sensor is and therefore the smoother the image, because there is less digital
noise in the image.
The higher ISO rating means, thus producing “rougher” or
grainier images.
Iso sensitivity And images Noise
The
higher the ISO rating (more sensitive) the stronger the image sensor. which
thereby produces more digital noise.
The
lower the ISO rating (less sensitive), which thereby produces less digital
noise.
So
what is digital noise? It is any light signal that does not originate from the
subject, therefore it creates random color in an image.
Image Quality
Image
Quality is important to remember that the lower the ISO rating the better the
image quality.
Lower
ISO images will
be more color-accurate images and
smoother. ISO between 100 and 200 will
give you the best results, and depending on the image sensor 
Understanding About Shutter Speed in simple ways
Shutter speed is one of the three main features of camera
quality, the other two being ISO and Aperture.
ShutterSpeed is the unit of
measurement that determines the how long shutter remains open as the
picture is taken.shutter speeds are expressed in seconds or fraction of second.
If the shutter
speed is slow, the exposure time is long. And If the shutter speed
is fast, the exposure time is slow.
The shutter
speed and aperture both are control the total amount of light reaching the
sensor
standards of shutter speeds
Shutter speeds
are typically measured in fractions of a second, when they are under a second.
1s, 1/2s, 1/4s,
1/8s, 1/15s, 1/30s, 1/60s, 1/125s, 1/250s, 1/500s, 1/1000s, 1/2000s, 1/4000s,
1/8000s, 1/12000s, 1/16000s.
E=F.360degree\s
Where
E = shutter speed
F =
frames per second, S = shutter angle
Beginners Guide-Camera have 3 Main Adventures settings
1.Aperture
Understanding About Aperture in Simple
Steps
Aperture is the unit of measurement that describes the size of
the opening in the lens that can
be used to control the amount of
light reaching the digital sensor.
Size of Aperture – Large vs Small
Aperture
aperture
is a hole within a lens, light can pass through which to the camera body. aperture
is expressed in f-numbers (for example f/5.6). These f-numbers also known as “f-stops”.
("f" means focal ratio)
("f" means focal ratio)
They are 2 kinds of f-stops
1. Smaller f-stop
2.Larger the f-stop
Smaller f-stop
A smaller f-stop means a larger aperture, The
size of the circle represents the size of the lens aperture
For example, f/2.0 is Smaller than f/1.4.
minimum apertures (highest f-number)
Larger
the f-stop
A larger f-stop means a smaller aperture. maximum apertures (lowest f-number)
Typical ranges
of apertures
f-number is
square root of 2:
Thursday 16 June 2016
Nissan developing Fuel cell vehicle technology victimisation plant product
Technology would be prepared to be used in vehicles
in 2020, adding it might be wont to extend the vary of larger, electrical
vehicles like delivery vans. And Nissan said its technology would 1st be
created offered to companies and native governments, once capital of Japan
hosts the Games, before any wider industrial use.
Ethonal comes
from crops like sugarcane and corn. Fuel cells work by combining element
Associate in Nursingd chemical element in an chemical science reaction, that
produces electricity.
Nissan
aforesaid the system would be cheaper than rival offerings as a result of it
avoids the large price of putting in filling stations and wouldn't need large
element tanks to be keep on board.
The cost and energy needed to supply element is
terribly high, and it additionally needs vital investment in (fuelling and
storing) infrastructure. "Compared thereupon, plant product is extremely
straightforward to acquire, it's safer to store and lower price. These area unit
its deserves.
Friday 8 April 2016
Specifications of Samsung Galaxy S7 Edge
|
GENERAL
|
|
|
Form factor
|
Touchscreen
|
|
Dimensions (mm)
|
150.90 x 72.60 x 7.70
|
|
Weight (g)
|
157
|
|
Battery capacity (mAh)
|
3600
|
|
Removable battery
|
No
|
|
SAR value
|
NA
|
|
DISPLAY
|
|
|
Screen size (inches)
|
5.5
|
|
Touchscreen
|
Yes
|
|
Resolution
|
1440x2560 pixels
|
|
Pixels per inch (PPI)
|
534
|
|
HARDWARE
|
|
|
Processor
|
1.6GHz octa-core
|
|
RAM
|
4GB
|
|
Internal storage
|
32GB
|
|
Expandable storage
|
Yes
|
|
Expandable storage
type
|
microSD
|
|
Expandable storage up
to (GB)
|
200
|
|
CAMERA
|
|
|
Rear camera
|
12-megapixel
|
|
Flash
|
Yes
|
|
Front camera
|
5-megapixel
|
|
SOFTWARE
|
|
|
Operating System
|
Android 6.0
|
|
CONNECTIVITY
|
|
|
Wi-Fi
|
Yes
|
|
Wi-Fi standards
supported
|
802.11 a/ b/ g/ n/ ac
|
|
GPS
|
Yes
|
|
Bluetooth
|
Yes, v 4.20
|
|
NFC
|
Yes
|
|
Infrared
|
No
|
|
USB OTG
|
No
|
|
Headphones
|
3.5mm
|
|
FM
|
No
|
|
Number of SIMs
|
2
|
|
SIM 1
|
|
|
GSM/ CDMA
|
GSM
|
|
3G
|
Yes
|
|
4G/ LTE
|
Yes
|
|
Supports 4G in India
(Band 40)
|
Yes
|
|
SIM 2
|
|
|
GSM/ CDMA
|
GSM
|
|
3G
|
Yes
|
|
4G/ LTE
|
Yes
|
|
Supports 4G in India
(Band 40)
|
Yes
|
|
SENSORS
|
|
|
Compass/ Magnetometer
|
Yes
|
|
Proximity sensor
|
Yes
|
|
Accelerometer
|
Yes
|
|
Ambient light sensor
|
Yes
|
|
Gyroscope
|
Yes
|
|
Barometer
|
Yes
|
|
Temperature sensor
|
No
|
Thursday 7 April 2016
how the S bike mode works on Samsung Galaxy J3
Samsung launched
its Galaxy J3
(2016) smartphone in India. It comes with an unique S bike mode.The S bike mode is essentially a
refined version of the Do Not Disturb mode on Android.
To begin with you need to scroll down the Settings menu from
the home screen. Tap on the bike mode. You can also do so via a NFC tag, which
comes bundled with the smartphone, and can be stuck on your bike as well. Once activated at the beginning of a
ride, any caller trying to reach the Samsung Galaxy J3 user will be notified
through an automated answering machine that the smartphone will automatically
inform the caller that the user is currently riding a bike and is unable to
take the call.
The mode will also prompt the caller to proceed with the call
if it is important. The
caller may choose to press 1 to express urgency to talk with the biker for which the biker will have to
bring his bike to a halt in order to take the call.
While
you will receive only urgent calls, the app comes with auto motion lock enabled
that bars you from receiving call when riding the bike. The motion lock will be
disabled once you have parked your bike.
Other key features include a Smart Reply for sending
automatic text responses when you are riding a bike. The app also a
notification panel that shows all
the missed calls when you had been
riding. The mode comes with pre-recorded messages in 14 languages
including Marathi, Gujarati, Nepali and Hindi among others.
Samsung Galaxy J3(2016) comes with 'S bike mode' in india
Samsung launched its Galaxy J3 (2016) smartphone
in India. previous smartphones in its J series, the latest J3 is
targeted at youth, and comes with an unique S bike mode. The smartphone is priced at Rs
8,999. Samsung Galaxy J3 doesn’t really go big on specification with the J3. It has a 5-inch Super AMOLED HD
display. Connectivity options include NFC (that also powers the S bike
mode), and 4G LTE with a data saving mode.
Wednesday 6 April 2016
Samsung Galaxy J3(2016) Specifications
Specification of Samsung
Galaxy J3
General | |
Brand |
Samsung |
Model |
Galaxy J3 (2016) SM-J320F |
Form |
Touch |
SIMs |
Dual-SIM |
SIM Size |
Micro-SIM |
Colour |
Gold, Black and White |
Other Features |
Micro- USB 2.0,USB OTJ |
Call Features |
Loudspeaker |
Display |
|
Type |
Super AMOLED capacitive touchscreen, 16M colors |
Sreen Size |
5 inches |
Display Resolution |
720 x 1280pixels |
Pixel Density |
294 ppi |
Multitouch |
Yes, Capacitive Touch |
Platform |
|
OS Version |
Android OS,v5.1.1 (Lollipop) |
Chipset |
Spreadtrum SC8830 |
CPU |
Quad-core 1.2GHz cortex-A7 |
GPU |
Mali-400 |
Preinstalled Apps |
Yes |
Multi-languages Supported |
Yes |
Camera |
|
Primary Camera |
8 MP |
Features |
Auto focus, LED Flash, Geo-tagging, Touch focus, |
Face detection, HDR, Face Detection, Digital |
|
Zooming, IOS setting, White balance setting, |
|
Self timer, Scene mode |
|
Secondary Camera |
2MP |
Network |
|
Technology |
GSM/CDMA/HSPA/UMTS/EDGE/GPRS/HSPA+ |
Memory & Storage |
|
RAM |
1.5GB |
ROM |
8 GB |
Memory Card Slot |
Micro SD, up to 128GB(Dedicated Slot) |
Sensors |
|
Accelerometer |
Yes |
Compass |
- |
Proximity |
Yes |
Gyro-sensor |
Yes |
Multimedia |
|
SAR US |
1.17W/kg |
SAR EU |
o.48W/kg |
FM Radio |
Yes |
Battery & Power |
|
Battery Capacity |
2600mAh |
Battery Type |
Li-Ion(Removable) |
3G Talk Time |
~13h(hours) |
~0.5days |
|
3GStandby Time |
~340h(hours) |
~14.2days |
|
2G Talk Time |
~18h(hours) |
~0.8days |
|
2GStandby Time |
~340h(hours) |
~14.2days |
|
Dimension |
|
HxWxD (mm) |
~142.3 x 71x 7.9 mm |
Weight (g) |
171g |
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