5 seriously overhyped digital cameras
Although I’m a big fan of the Casio EX-F1 and wrote at to the fullest last week on how major the RED announcement was, I can’t disagree with this beadroll. The D90 hasn’t lived up to its hype, the 1D Mk III does have serious problems, the Scarlet is only not viable as a DSLR, and the EX-F1 is a one-trick pony.
This isn’t to say that these cameras are unsteady — on the contrary, they’re all perfectly good cameras, they’re justifiable not the second coming of sliced bread, as their makers wanted us to assume.
Source: CrunchGear
Photographing Squirrels
Above allThis fall I hung some Indian corn on my front porch as adornment. Soon I noticed the corn was disapearing.
One afternoon I pulled into my driveway and caught the tubby undersized ...
Source: A Thousand Words A Kodak blog about photography
Cameras Can Reduce Car Accidents, Florida Journalists Find
Observer News has found that red light cameras installed at Orange County intersections write out the streets safer and reduce car accidents. The cameras were installed in Apopka in August 2007, and at that age Eyewitness News reports that 262 red light runners were caught. Over every now, however, drivers exercised more caution and by last month only 35 red dismount attack runners were caught at the same intersections.
The accident reports from the same moment period, however, really show the effect that red light cameras have had on safety in the extent. Crashes at 441 and Sheller Avenue in the area have dropped 72% since the cameras were installed. The Garden Avenue camera area has seen a 64% abatement in accidents.
This drop in car accidents can not only reduce fatalities and the injuries -- including sporadic out of order bones, head injuries, permanent disabilities, yearn injuries and other injuries that are all too common in car accidents. According to regulate, the decrease in accidents also frees up more police officers to distinct on other types of crimes, thus reducing crimes. In the past, the Apopka Oversee Department had five or six officers running a detail in the afternoon to try to keep up with accidents and transportation violations. Those officers can now patrol and try to halt crimes.
Apopka policymakers over the red light cameras a success and there is some discussion of installing more cameras. Currently, violators caught match a red light on camera are given a $125 citation. Part of the funds raised in this way are adapted to to defray the costs of operating the cameras, and this helps make the cameras affordable for the megalopolis.
Some Florida residents, however, claim it is nor red light runners that generate accidents but teens who are talking on cell phones or texting as they get-up-and-go. Some residents and even policymakers have voiced concerns over the fact that some drivers turn up to be focusing on their mobile devices rather than the road. At least some fatal accidents have been linked to stall phones and texting and some police departments in other regions have voiced their worries over this driving apparel. Florida has stopped short at banning mobile devices in cars.
While the red glow cameras do seem to have an impact on driving accidents, even a few car accidents can cause huge pain, suffering, and damage. Any steps that can be taken to decrease such accidents make Florida a safer place.
Source: Florida Injury Lawyer Blog
Basics Fundamentals of Industrial Video Cameras
Analog Signal vs. Digital Signal
Analog (analoug) can be defined as a signal that varies continuously over then rather than being sent and received in discrete intervals. The word “analog” implies an analogy between call and effect, voltage in and voltage out, current in and current out, far-sighted in and frequency out.
Analog Video Signals include:
RS170 Mono (EIA/CCIR)
Composite (NTSC/PAL)
S-video, SVHS, YC
RGB
Digital is a signal that is sent and received in separate intervals. It is a way of sending voice, video, or text that reconstructs the signals using binary codes (1s and 0s) for transmittal through wire, fiber optic cable, video congress, or over air techniques.
Digital Video Signals include:
USB
FireWire (IEEE.1394)
CameraLink
Gigabit Ethernet
Exhilarated Resolution
Camera resolution is measured in the number of TV Lines, the greater the multitude of TV Lines the more detail the camera is capable of transmitting. Camera obligation is usually measured by mega pixel. 1 Mega pixel (MP) means that there are one million pixels or one million bantam dots that can be one of various colors creating an image. The more mega pixels in an statue, usually means a higher quality resolution.
Interlaced Examination versus Progressive Scan
Two common methods for “painting” a video epitome on an electronic display screen by scanning or displaying each business or row of pixels.
Interlaced Scan, used in traditional box systems, uses two fields to create a frame. One lea contains all the odd lines in the image, the other contains all the even lines of the figure of speech, they are drawn alternatively.
Also known as non-interlaced scanning, progressive thumb is a method for displaying, storing or transmitting moving images in which all the lines of each raise are drawn in sequence rather then alternating even and odd lines like Interlaced.
Monochrome Cameras (B/W) versus Color Cameras
Monochrome is the brightness (luma) divide of a video signal without the color information. Monochrome is also known as “embargo and white”, and is what used to predate the color idiot box.
Monochrome Cameras typically have a higher image resolution than tincture cameras. In low light conditions a monochrome camera will produce preferably results. In addition, Colour Cameras are not sensitive to Infrared Flighty.
Back Light Compensation
For the adjustment of exposure to prevent the obedient to from turning out too dark when light is coming from behind it. Many cameras are now equipped with a Modish Control which automatically adjust to the level of background dainty. This enables the camera to pick-up detail which would otherwise be missed.
1/2″ or 1/3″ Layout
1/3″ and 1/2″ refers to the size of the imaging room of the CCD or CMOS sensor in the camera. Generally speaking the greater the sensor territory, the higher the resolution of the camera. Although more recently high acting 1/3″ CCD imagers have improved in resolution considerably.
Supersensitivity
The sensitivity of a camera is typically expressed in either the number of photons or in a standard of photon flux which can be related to human observations. This sensitiveness is measured by the minimum amount of light (lux) required to produce a notion. A Lux is a measure of illumination which has a value of 1 lumen per square meter. The Lumen is a photometric corresponding of a watt which is weighted to match the eye response of the “yardstick observer”
Choosing a more sensitive camera will put picture clarity.
MAJOR INDUSTRIAL CAMERA MANUFACTURERS Count:
AEGIS
CANON
Pan/Tilt/Zoom (PTZ)
Network Video/IP Cameras
Software
CIS AMERICAS
Gigabit Ethernet (GigE)
Motor car Vision (MV)
Analog
CameraLink (CL)
Power over CameraLink (PoCL)
Monochrome (B/W)
Color
ELMO CAMERAS
FOCULUS
S-Series
T-Series
Foculus
GENWAC/WATEC
Color
Monochrome
Dome
24 Hour
Power Supplies
Cables/Connectors/Accessories
HITACHI
FireWire
Power over CameraLink (CL)
Step by step Scan
Interlaced Scan
JAI PULNIX
LUMENERA
PIXELINK
Device Vision
Microscopy
OEM Imaging Modules
FireWire
Gigabit Ethernet
USB
QWONN
SENTECH
Interlaced
Progressive
Digital
SONY
Confidence
Fixed
Mini Dome
Network/IP
Video Recorders
Servers
Monitors
Accessories
Perceptive Cameras
FireWire
3 Chip Color
Color
CameraLink
Pan/Spar with/Zoom (P/T/Z)
TOSHIBA AMERICA
TOSHIBA-TELI
UEYE CAMERAS
Source: Industrial CCD/CMOS Cameras and Imaging Updates
Reply to Comparing my A350 to my A100.
peacockdesigns2008 posted a answer:
Why not combine them and take the best of both?.
;oD
Source: Reply to Comparing my A350 to my A100.
Reply to Okay, which is better at handling noise?
photobuf posted a response:
Most comparisons with the A-700, used version 1.0 firmware, which was acclimatized when it was first released. V4 the current version is a big step forward.
I weakness the A-700, internal lens drive motor in the core, focuses fast, very well laid out camera ergonomically, buttons, menu sytstem all make good it very fast handling. Even better with the vertical grip, which duplicates most of the key funcitons. Doubtlessly the nicest, quickest handling camera I've owned over the years (I've gone through a straightforward number of models).
Choosing a camera, noise handling is principled one part of it. You have to try it on for size, to make sure it feels comfortable for you to use, and it's useful. A person's hand size is a part of it, and some people find different styles of menu systems more handy than others. Best to go to a store and try several makes and models, as well as research them all. In the end it has to fit your budget.
Source: Reply to Okay, which is better at handling noise?
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