Vista QP04 series Instrukcja Użytkownika Pobierz pdf (Strona 8)

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8

Does size really matter?

T

here was a time when most CCTV

manufacturers offered some kind of

miniaturised camera. These units were

often billed as covert, and were essentially a

miniature camera with a pinhole lens, shoe-

horned into an everyday object like a clock or a

box file. They created interest, made for an

amusing anecdote or two at exhibitions, and

sold in moderate numbers. They partially fell

from grace as the privacy debate tagged such

devices as ‘spy cameras’, and

there’s nothing like that

term to raise the hackles

of the general public.

In reality, a bigger

constraint to high

volumes of sales was

down to the fact that

the image quality

wasn’t the best! In

order to make the

units so small,

compromises had

to be made. As

general CCTV

quality was

enhanced, so

the gulf between

the so-called

miniaturised cameras and

mainstream cameras became significant.

Few could justify the difference, and the

miniature camera slipped from the serious

security sector to the ‘gimmick’ market-place.

Trends in modern security have changed,

and the need for miniaturised devices is once

more obvious. One area where there is an

increased demand for diminutive devices is for

ATM security. It is this market that Samsung

has targeted with the SCB-3020, but it could

also be considered for a range of applications

where a discreet solution is called for.

Specification

The SCB-3020 is billed as an ATM camera, and

indeed the marketing materials do headline it

as: ‘the camera only for ATMs’. We actually

think that many installers will see other uses

for the camera, if it delivers the specified

performance!

The camera uses the manufacturer’s A1

chipset, which is also widely used in a range of

standard cameras. It lacks some of the high

level flexibility of the top-of-the-range SV5

processing engine, but tests on A1 cameras in

the past have seen them deliver an impressive

level of performance for devices that are

seriously cost-effective.

The camera makes use of a 1/3 inch double

scan CCD; a 1/3 inch Super HAD version is also

available. Resolution is quoted as 600 TV lines,

and sensitivity is claimed as 0.45 lux for a

50IRE image with Sens-Up set to 2x. Signal to

noise ratio is 52dB.

If there is one part of this camera that makes

you nervous, it has to be the lens. Just looking

at its size gives you the impression that the

video quality is going to be strangled. The lens

has a focal length of 3.7mm and an aperture of

F2.0.

As you read down the list of features and

functions you realise that most of the usual

suspects are there. The camera supports

automatic day/night switching, backlight

compensation, wide dynamic range, noise

reduction, image stabilisation, motion

detection, privacy masking, sens up, gain

control, virtual progressive scan, an alarm

output and even intelligent video functionality.

This camera might be miniature in physical

Samsung - SCB-3020P

When most installers think

about ‘pinhole’ cameras, they

tend to imagine units with

compromised quality to

achieve miniaturisation. It is

felt that you can’t have a

discreet unit that delivers high

performance. Samsung offers

the diminutive SCB-3020;

Benchmark considered its

performance capabilities.

BENCHMARK

RATINGS

Product Design: 80%

Features and Functions: 82%

Ease of Installation: 78%

Video Quality: 80%

Performance: 80%

80%

Samsung_pp08-09_000_Benchmark_nov10 13/04/2012 11:15 Page 2

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