Wdr (180)

Displaying 'WDR' tags 1 - 25 of 180 in total

Camera Course Winter 2017

Learn video surveillance and get certified. IPVM provides live online classes, recorded videos, personal help, cutting edge education and certification. Winter Camera Class. Register Now. We have just substantially rewritten the course and ...

By Brian Rhodes - 18 days ago

Surveillance Cameras 2017 Review

(PRO Only)

This report concisely explains the developments and most common options for surveillance cameras offered in 2017, including resolution, H.265, HD analog, image quality, video analytics and cost. Compared to surveillance camera developments in 201...

By John Honovich - 21 days ago

Calculating Video Surveillance Storage / Bandwidth

(PRO Only)

Calculating surveillance bandwidth is complex, and inexperienced users can easily underestimate bandwidth, leading to reduced storage durations and/or overloaded networks. The most common way technicians estimate storage is to use manufacturer or...

By IPVM Team - 25 days ago

The PPF / PPM Video Surveillance Guide

(PRO Only)

Pixels per foot / Pixels per meter is the most fundamental and valuable, though imperfect, metric for specifying video surveillance image quality. In a single number, this metric (e.g., 10ppf, 40ppf, 100ppf) conveys important information about wh...

By IPVM Team - about 1 month ago

WDR Tutorial 2017

(PRO Only)

Understanding wide dynamic range (WDR) is critical to capturing high quality images in demanding conditions. However, with no real standards, any manufacturer can claim WDR, and many do even if actual performance is weak, causing confusion for eve...

By IPVM Team - about 1 month ago

HD Analog vs IP Guide 2017

(PRO Only)

For years, HD resolution was IP camera's greatest advantage. However, starting in 2013, analog cameras with HD resolution started shipping and, now, just a few years later, HD analog has become a significant force in the video surveillance indust...

By IPVM Team - about 1 month ago

Video Surveillance Bandwidth Guide 2017

(PRO Only)

Bandwidth is one of the most fundamental, complex and overlooked aspects of video surveillance. Many simply assume it is a linear function of resolution and frame rate. Not only is that wrong, it misses a number of other critical elements and fai...

By Ethan Ace - about 1 month ago

Resolution Tutorial

(PRO Only)

Understanding video surveillance resolution can be surprisingly difficult and complex. While the word 'resolution' seems self-explanatory, its use in surveillance is far from it. In this tutorial, we will explain 5 critical elements: What resol...

By John Honovich - about 1 month ago

Longse vs Dahua and Hikvision Tested

(PRO Only)

For many, even $100 cameras are too expensive. That is where spam king Longse comes in with their relentless offer of ~$20 cameras. In our past tests, Longse was no match for Hikvision or Dahua, with numerous quality flaws. But with cameras advan...

By Ethan Ace - 2 months ago

Dahua 4MP HD Analog Tested

(PRO Only)

A few years ago, analog was SD only. In the past few years, HD analog, up to 1080p, has become commonplace. Now, HD analog is doubling its max resolution to 4MP. We bought and tested two of Dahua's new 4MP CVI 3.0 cameras, the A43AG23 turret/ey...

By Ethan Ace - 2 months ago

Samsung Wisenet Q 4MP Tested

(PRO Only)

The 4MP trend continues, now with Hanwha Techwin / Samsung in their latest Wisenet Q series. We bought one of these models, the QNV-7080R, to see how it stacks up against 4MP competitors from Axis and Hikvision in full light, low light (below), W...

By Ethan Ace - 3 months ago

Sony 35mm Super Low Light Camera Tested

(PRO Only)

Sony is making a big push for their SNCVB770 camera, touting its low light capabilities that they claim can deliver true color in pitch black darkness. While the 'super low' light market segment is definitely growing, Sony's SNCVB770 has a dramat...

By Ethan Ace - 3 months ago

Bosch First Starlight 1080p Camera Tested

(PRO Only)

Bosch has released their first 'Starlight' 1080p camera, the Flexidome IP starlight 7000 VR. We tested this new dome against competitive super low light models from Axis ('LightFinder') and Hikvision ('DarkFighter'), as well as Bosch's existing 1...

By Ethan Ace - 3 months ago

Samsung 'Q' Low-Cost 1080p Dome Tested

(PRO Only)

The most competitive part of the market is for low-cost cameras. Hanwha Techwin / Samsung has released its new low-cost Q series to go after this segment. We bought two of these new Wisenet Q models and tested them against competitive domes from...

By John Scanlan - 4 months ago

Axis 4MP Camera Tested (M3046-V)

(PRO Only)

Axis has brought 4MP to its camera line in the new M3046-V, the highest resolution model in their revamped M30 series. We bought and tested this new camera against 4MP models from Dahua and Hikvision to see how low light, full light, and WDR perfo...

By Ethan Ace - 4 months ago

History of Video Surveillance

This is a concise history of video surveillance covering the past decade.  The goal is to help professionals newer to the industry understand the important business and technology shifts that impact the market today. It is not intended to cover...

By John Honovich - 4 months ago

Panoramic Camera (Fisheye / Multi-Imager) Guide

(PRO Only)

Panoramic cameras, including fisheyes and multi-imagers, have become increasingly widespread, with most manufacturers offering fisheyes and an increasing number offering multi-imagers. However, with many options, it can be confusing to understand...

By Ethan Ace - 5 months ago

Pelco Optera 180° Camera Tested

(PRO Only)

In our initial testing of Pelco's Optera multi-imager, the main issue was their ONVIF 'bowtie' video streaming which undermined third party integration.  Now, Pelco has released new firmware that they say fixes this problem with what they call 't...

By Ethan Ace - 6 months ago

Imaging Developer Claims Massive Low-Light Improvements

(PRO Only)

In the early days of megapixel, binning was a crutch used to compensate for poor low-light performance.  Low-light sensitivity improvements have mostly eliminated the need for binning, but one company has an interesting argument for bringing it ba...

By Brian Karas - 6 months ago

Axis Chinese Competitor Companion Dome V Tested

(PRO Only)

A $169 1080p dome from Axis? The Companion Dome V is, by far, Axis' lowest cost 1080p dome, a full $100 less than even their new M3045-V. Every manufacturer has been hit by rapid Chinese expansion over the last few years. Axis is clearly trying ...

By Ethan Ace - 7 months ago

Hikvision vs Dahua High-End 4MP Cameras Test

(PRO Only)

4MP models hit with a splash last year, offering increased resolution and true WDR at past 1080p prices. However, these models have been limited to the low end, with fixed lenses and limited options.  Now, Dahua and Hikvision have released new do...

By Ethan Ace - 7 months ago

"World's Smallest Recessed Mount Camera" Tested (Vivotek)

(PRO Only)

Vivotek claims their FD816C-HF2 is the "World's Smallest Recessed Mount Camera", only 2.5" wide, shown here installed in a ceiling tile: We bought one and tested it out since a number of members have asked about it. Inside we look at its size, ...

By John Scanlan - 7 months ago

Axis Lowest Cost 1080p Camera (M3045-V) Tested

(PRO Only)

We bought the new 1080p Axis M3045-V and tested it against Hikvision and Samsung to see how it compared. This is the second in our series (starting with the Axis M3044-V Test and concluding with the M3046 4MP test). Below is a preview of the com...

By IPVM Team - 7 months ago

Axis New Lowest Cost Dome M3044-V Tested

(PRO Only)

It has been 4 long years since Axis launched new low cost domes. In that time, the industry has changed massively, with massive price drops driven by Chinese manufacturers. Now, Axis' new dome release claims better low light, true WDR, and Zipst...

By IPVM Team - 8 months ago

Arecont HD WDR G5 Camera Tested

(PRO Only)

This concludes our testing of Arecont's G5 series, including our previous Arecont 10MP G5 Test and the Arecont Stellar Camera Test  We bought 3 Arecont cameras Inside, we see how the G5 WDR camera stacks up against competitive models from Axis...

By Ethan Ace - 8 months ago

Displaying 'WDR' tags 1 - 25 of 180 in total