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Description
Dahua 8+4MP 25x TiOC Network Panoramic PTZ-camera (SDT4E425-8P-GB-A-PV1-SL)Productbeschrijving De Dahua SDT4E425 8P GB A PV1 SL is een hybride CCTV camera die een 4 MP 180 panoramisch beeld combineert met een 8 MP PTZ camera met 25x optische zoom. Uitgerust met TiOC (Three in One Camera) en WizSense technologien biedt hij intelligente detectie, adaptieve verlichting en actieve afschrikking. Ontworpen voor geavanceerde buitenbewaking, is hij ideaal voor locaties die een brede dekking en proactieve inbraakrespons vereisen.
Productbeschrijving
De Dahua SDT4E425-8P-GB-A-PV1-SL is een hybride CCTV-camera die een 4 MP 180° panoramisch beeld combineert met een 8 MP PTZ-camera met 25x optische zoom. Uitgerust met TiOC (Three-in-One Camera) en WizSense-technologieën biedt hij intelligente detectie, adaptieve verlichting en actieve afschrikking. Ontworpen voor geavanceerde buitenbewaking, is hij ideaal voor locaties die een brede dekking en proactieve inbraakrespons vereisen.
Specificaties
| Camera | |
| Beeldsensor | Overzichtskanaal: 1/2,7" CMOS; Detailkanaal: 1/2,8" CMOS |
| Pixel | Overzichtskanaal: 8 MP; Detailkanaal: 4 MP |
| Maximale resolutie | Overzichtskanaal: 4096 (H) × 1860 (V); Detailkanaal: 2560 (H) × 1440 (V) |
| ROM | Overzichtskanaal: 4 GB; Detailkanaal: 4 GB |
| RAM | Overzichtskanaal: 2 GB; Detailkanaal: 1 GB |
| Elektronische sluitertijd | 1 s–1/30.000 s |
| Scansysteem | Progressief |
| Minimale verlichting | Overzichtskanaal: 0,005 [email protected] (kleur, 30 IRE); 0,0005 [email protected] (zwart-wit, 30 IRE); 0 lux (illuminator aan) Detailkanaal: 0,005 [email protected] (kleur, 30 IRE); 0,0005 [email protected] (zwart-wit, 30 IRE); 0 lux (illuminator aan) |
| Verlichtingsafstand | Overzichtskanaal: 30 m (98,43 ft) (IR); 30 m (98,43 ft) (wit licht); Detailkanaal: 100 m (328,08 ft) (IR); 50 m (131,23 ft) (wit licht) |
| Aan/uit-regeling van de verlichting | Overzichtskanaal: Handmatig; Automatisch; Uit Detailkanaal: Zoom Prio; Handmatig; Automatisch; Uit |
| Illuminatornummer | Overzichtskanaal: 2 (IR-licht); 2 (Wit licht); Detailkanaal: 2 (IR-licht); 2 (Warm licht) |
| Lens | |
| Brandpuntsafstand | Overzichtskanaal: 2,8 mm; Detailkanaal: 5 mm–125 mm |
| Maximaal diafragma | Overzichtskanaal: F1.4; Detailkanaal: F1.6-F3.6 |
| Gezichtsveld | Overzichtskanaal: H: 180°; V: 86°; Detailkanaal: H: 51,9°–3,0°; V: 39,7°–2,2°; D: 63,1°–3,7° |
| Optische zoom | Overzichtskanaal: NA; Detailkanaal: 25× |
| Focusregeling | Automatisch; handmatig; semi-automatisch |
| Korte scherpstelafstand | Overzichtskanaal: 0,6 m (1,97 ft); Detailkanaal: 0,1 m–0,5 m (0,33"–1,64") |
| Irisbestrijding | Overzichtskanaal: N.v.t.; Detailkanaal: Automatisch; handmatig; irisprioriteit |
| PTZ | |
| Pan/Tilt-bereik | Pan: 0° tot 360° eindeloos Kantelen: –15° tot +90°, automatisch 180° omdraaien |
| Handmatige snelheidsregeling | Pan: 0,1°/s–180°/s; kanteling: 0,1°/s–90°/s |
| Vooraf ingestelde snelheid | Pan: 0,1°/s–180°/s; kanteling: 0,1°/s–90°/s |
| Vooraf ingesteld | 300 |
| Tour | 8 (tot 32 presets per tour) |
| Patroon | 5 |
| Scannen | 5 |
| Uitschakelgeheugen | Ja |
| Stationaire beweging | Voorinstelling; Patroon; Tour; Scan |
| Intelligentie | |
| IVS (Perimeterbeveiliging) | Struikeldraad; indringing; detectie van het passeren van een hek; detectie van rondhangen; achtergelaten/vermist object; snel bewegend; parkeerdetectie; mensen verzamelen; classificatie van menselijke alarmen; koppelingstracking |
| SMD | SMD 4.0 |
| Actieve afschrikking | |
| Lichte waarschuwing | Waarschuwing voor rood-blauw licht; Flitsduur: 5 s–30 s; Flitsfrequentie: hoog, gemiddeld, laag |
| Geluidswaarschuwing | Biedt 11 geluidsalarmen en 10 aangepaste geluidsalarmen die geïmporteerd kunnen worden. Het geluid kan ingesteld worden van 0% tot 100%. De afspeeltijden kunnen ingesteld worden van 1 tot 10. |
| Video | |
| Videocompressie | Slimme H.265+;H.265;Smart H.264+;H.264B;H.264M;H.264H;MJPEG(Substroom 1) |
| Streaming-mogelijkheid | 3 streams |
| Resolution | Overzichtkanaal: 8M (4096 × 1860); 2M (2048 × 928); 1080p (1920 × 1080); 720p (1280 × 720); 1024 × 448; D1 (704 × 576/704 × 480); VGA (640 × 480); CIF (352 × 288/352 × 240); Detailkanaal: 4M (2560 × 1440); 3M (2304 × 1296); 1080p (1920 × 1080); 1,3M (1280 × 960); 720p (1280 × 720); D1 (704 × 576/704 × 480); VGA (640 × 480); CIF (352 × 288/352 × 240) |
| Videoframesnelheid | Overzichtkanaal: Hoofdstream: 4096 × 1860 @(1–25/30 fps) Substream 1: 1024 × 448/D1/VGA/CIF @(1–25/30 fps) Substream 2: 2048 × 928/1080p/1,3M/720p @(1–25/30 fps); Detailkanaal: Hoofdstream: 4M/3M/1080p/1,3M/720p @(1–25/30 fps) Substream 1: D1/VGA/CIF @(1–25/30 fps) Substream 2: 1080p/1,3M/720p/ @(1–25/30 fps) |
| Bitsnelheidsregeling | CBR/VBR |
| Videobitsnelheid | Overzichtskanaal: H264: 128 kbps–16.384 kbps H265: 51 kbps–13.312 kbps; Detailkanaal: H264: 96 kbps–16.384 kbps H265: 38 kbps–10.240 kbps |
| Dag/Nacht | Overzichtskanaal: Auto; Kleur; Zwart-wit; Elektronisch Detailkanaal: Auto; Kleur; Zwart-wit; Elektronisch |
| BLC | Ja |
| WDR | Overzichtskanaal: DWDR; Detailkanaal: 120 dB |
| HLC | Ja |
| Witbalans | Overzicht kanaal: Auto; binnen; buiten; tracking; handmatig; natriumlamp; natuurlijk licht; straatlantaarn Detail kanaal: Auto; binnen; buiten; tracking; handmatig; natriumlamp; natuurlijk licht; straatlantaarn |
| Krijg controle | Overzicht kanaal: Auto; handmatig; versterkingsprioriteit Detail kanaal: Auto; handmatig; versterkingsprioriteit |
| Noise Reduction | Overview channel: 2D NR; 3D NR Detail channel: Auto: 2D NR; 3D NR |
| Motion Detection | Yes |
| Region of Interest (RoI) | Yes |
| Image Stabilization | Overview channel: NA Detail channel: Electronic Image Stabilization (EIS) |
| Defog | Overview channel: Electronic Detail channel: Electronic |
| Digital Zoom | Overview channel: NA; Detail channel: 16× |
| Image Rotation | Overview channel: NA Detail channel: 180 |
| S/N Ratio | Overview channel: ≥55 dB Detail channel: ≥55 dB |
| Audio | |
| Audio Compression | PCM, G.711A, G.711Mu, G.726, MPEG2-Layer2, G.722.1, G.729 |
| Network | |
| Network Port | RJ-45 (100/1,000 Base-T) |
| Network Protocol | HTTP; HTTPS; TCP/IP; IPv4; RTSP; UDP; SMTP; NTP; DHCP; DNS; DDNS; IPv6; 802.1x; SSL; QoS; FTP; UPnP; ICMP; SNMP; IGMP; ARP; RTCP; RTP; PPPoE; RTMP; Bonjour; NFS |
| Interoperability | ONVIF (Profile S & Profile G & Profile T);CGI;SDK;P2P |
| Streaming Method | Unicast/Multicast |
| User/Host | 20 (total bandwidth: 64 M) |
| Storage | Micro SD card (512 GB); FTP/SFTP; NAS |
| Browser | web5.0: IE 9 and later versions; Chrome 41 and later versions; Firefox 52 and later versions; Safari 10 and later versions |
| Management Software | DMSS; DSS Pro |
| Mobile Client | iOS; Android |
| Management Software | DMSS; DSS Pro |
| Mobile Client | iOS; Android |
| Certification | |
| Certifications | CE: EN 50130-4 EN 55032 EN 55035 EN 61000-3-3 EN IEC 61000-3-2 EN 62368-1 NEMA 4X |
| Port | |
| Audio Input | 1 channel (LINE IN, bare wire) |
| Audio Output | 1 channel (LINE OUT,bare wire;built-in speaker (mutually exclusive)) |
| Alarm Input | 2 (on-off value input: 0–5 VDC) |
| Alarm Output | 1 channel |
| Alarm Linkage | Capture; recording; send email; preset; tour; pattern; alarm digital output; audio; warning light |
| Alarm Event | Motion/tampering detection; network disconnection detection; IP conflict detection; memory card state detection; memory space detection |
| Alarm Event | Motion/tampering detection; audio detection; network disconnection detection; IP conflict detection; memory card state detection; memory space detection |
| Power | |
| Power Supply | 12 VDC, 3 A ± 10%;PoE (802.3at) |
| Power Consumption | Basic: 14 W; Max: 25 W (illuminator + heating glass + Siren and Light Active Deterrence + ICR + PTZ) |
| Power Adapter | Optional |
| Environment | |
| Operating Temperature | –40 °C to +65 °C (–40 °F to +149 °F) |
| Operating Humidity | ≤95% |
| Protection | IP66; TVS 6000 V lightning proof; surge protection; voltage transient protection |
| Structure | |
| Product Dimensions | 194.2 mm × 160 mm × 311 mm (7.65" × 6.30" × 12.24") (L × W × H) |
| Net Weight | 3.1 kg (6.83 lb) |
| Gross Weight | 4.6 kg (10.14 lb) |
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4.6 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
A Seasoned Developer's Fresh Perspective on Game Development
Format: Paperback
Finally, a game dev book that respects your existing programming knowledge
As someone who's spent two decades architecting enterprise web applications in C# and ASP.NET, I approached game development with what I thought was a solid foundation. I was wrong—not about C#, but about how differently it's applied in game engines. After five frustrating years of trying to bridge that gap through scattered tutorials and documentation, Harrison Ferrone's eighth edition finally gave me the structured path I needed.
What This Book Gets Right for Experienced Developers:
The pacing is deceptive. Yes, it starts with programming fundamentals, but don't skip ahead. Ferrone's approach to OOP in the context of Unity's component architecture was revelatory. In web dev, I'd been writing services, repositories, and dependency injection for years. Here, the MonoBehaviour lifecycle and component-based thinking required a genuine mental shift that the book handles exceptionally well in chapters 5-6.
Chapter 10's revisit of types and methods isn't redundant—it's strategic. By this point, you've written enough Unity scripts to appreciate why game code patterns differ from traditional enterprise patterns. The discussion of value types vs reference types hits differently when you're optimizing frame rates instead of HTTP response times.
The Unity 6 Update Matters:
Having struggled with outdated Unity tutorials for years, the Unity 6-specific content is invaluable. The screenshots are comprehensive (full-screen mode can make text small, but the GitHub repo and graphics bundle solve this). More importantly, the code samples reflect current Unity APIs and best practices, not deprecated approaches that still litter Stack Overflow.
Where It Shines for Career Transitioners:
Chapters 11-13 are worth the price alone. LINQ in Unity isn't just about querying collections—it's about performance considerations I never had to think about in web apps. The coverage of generics, delegates, and events finally connected how Unity's event system relates to patterns I already knew, but in a real-time context where every allocation matters.
The serialization chapter (12) bridged my understanding of data persistence from databases and JSON APIs to Unity's PlayerPrefs and ScriptableObjects. This practical grounding is what most tutorials skip.
Minor Quibbles:
The FPS prototype is solid for learning, but I wish there was more discussion of common anti-patterns experienced developers bring from other domains. I still catch myself over-engineering solutions when Unity's component system offers simpler approaches.
Also, while the book touches on performance, those coming from async/await-heavy web development will need supplementary resources on Unity's coroutines and the Job System for more complex scenarios.
Bottom Line:
If you're a professional developer trying to break into game development, stop collecting random Udemy courses. This book provides the structured progression and context-appropriate examples that respects your intelligence while teaching you to think like a game developer. The C# you know is necessary but not sufficient—Ferrone bridges that gap methodically.
After years of false starts, I finally have a working game prototype and, more importantly, the mental models to keep building. That's worth significantly more than the cover price.
Disclosure: I received an advance review copy from Packt Publishing. This honest review reflects my genuine experience as a career-changing developer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2025
★★★★★ 5
A Worthy Touchstone for Anyone Who Wants to Master Unity
Format: Paperback
Harrison Ferrone’s Learning C# by Developing Games with Unity 6 is one of the strongest beginner-to-intermediate Unity guides I’ve read: carefully structured, patient in its explanations, and quietly packed with insight about how Unity 6 and C# truly work together. I read the physical edition while sitting in front of a blank Unity project, and the experience felt like having a seasoned sailor point out the currents of a river I’ve been navigating for years. You see the familiar terrain differently.
The book’s early decision to spend real time on C# fundamentals is a welcome choice. Most Unity books skip past the language; Harrison slows down, defines concepts, and gives you enough clarity that when you finally enter Unity, you understand why things behave the way they do. Those chapters are dense in the best way: they prep beginners to stand on solid ground and give experienced users a clean, refreshed mental model of the language under the engine.
Ferrone’s real strength is his voice. He strikes a balance I rarely see in technical writing: conversational introductions that explain what you’re about to learn and why it matters, followed by crisp, accessible technical walkthroughs. The pacing (explanation → example → implementation) is excellent. And the inclusion of ready-to-use assets removes one of the biggest barriers for new developers who want to understand systems without getting lost creating placeholder art.
The book doesn’t talk down to anyone. It makes Unity feel more accessible without flattening its complexity. Beginners will come away with genuine competence; advanced users will appreciate the clear framing of new Unity 6 tools and the subtle recognition of how AI-assisted coding is shaping modern workflows. It’s a guide you can read once for understanding, then keep at your desk as a reference.
If you’re a serious hobbyist, a technically inclined beginner, or someone who’s ready to work through your first real project, this is the Unity book I’d hand you first. It bridges concept and execution with clarity and confidence, and it does so with a tone that feels patient, practical, and quietly encouraging. In a space crowded with copy-paste tutorials, Harrison Ferrone has written a Unity 6 guide with real staying power.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
★★★★★ 4
Pretty good beginner book, very user friendly covers Development and Design
Format: Paperback, Format: Paperback
I enjoy learning Game Dev, but I research books because many authors promise a lot and deliver half or not at all and I have to put the book down. This book was pretty good. I appreciate the author explaining things, and remember he's writing a book for beginners. There's also a good amount of pics in the book, and I dislike a book with no pics. Also, he breaks it down very simply and explains that you're not going to learn the entire Unity ecosystem, but rather a beginner-level understanding to get a person started. I enjoyed this book and will definitely go over particular info again. They have a Discord group and a newsletter with tips and it also goes over Game Design. I was surprised to see this, and maybe it's new to me, and I like the analogy of explaining complex terms. A con of the book is that as it progresses, it starts to come off as advanced in scripting, and I turned to AI for additional explanations. Still, the author did explain in advance that it's about to get more advanced, but that's me going deeper into the meaning and explanations. Other than that, it's a good read that you will go to more than once and has practical info to help you on your Unity journey.
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Reviewed in the United States on December 1, 2025
★★★★★ 5
This is a game changer in Unity!
Format: Paperback
The amazing part about this book is how it begins. It tells you which Unity, VS (Visual Studios), and which C# versions you should use for best results. This in my thoughts are the most important part when programming, know which ones to use to make your experience the best it can be.
There are exclusives in this as well. This book has some major pics to show those who are visual learners and that is a great asset as most people need to see it and use it in order to understand what they are doing. Books sometimes leaves this important thing and some get lost in the reading and put those types of books down and never pick them up again.
I read through this book and found things that intrigue me and make me want to literally just get into it until I'm done reading and using the pics to guide me through.
This book also works with MacOS as well. I'm not much into that operating system but I know many who prefer that and that is awesome that this teaches this way as well.
This even has pop quizzes for you to do to enhance the effects of learning and I am sure this would be a book that would be used in schools if it were offered as a preferred reading/teaching structuring the class for success.
I have said it before in my reviews that this is again another great book to add to your collection. Each book of this type is something that should be purchased or gifted to someone to make their lives easier when it comes to programming and the way this book does it's teaching style it makes programming that much easier and more fun.
So many things in this book I don't have enough room or a way of putting it into words. Best tog eab this book and enjoy every part of it and I promise it won't be a waste of money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2025
★★★★★ 5
Great for getting into Unity and mastering it
Format: Paperback
Sometimes I mentor students who are just getting started in Unity. This is a great resource I can use to help them along.
The book has a great start by covering topics like what is a variable, how to call a function, classes, and OOP. There is even some tricks on how to debug your code which a lot of people struggle with. For statements this books covers all of them, if, else, for, switches, etc. Other books don't explain OOP well enough but with book goes over it very well and explains what the difference between a value and reference type is. Towards the end there are a bunch of project examples like making a player, shooting projectiles, and creating a user interface. This book is very up to date and uses Unity 6.
If you just started learning Unity then this is a must have book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 13, 2025
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