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    Zoom equivalent on different sensors?

    Yes, that is the way I am looking at it As a rule of thumb, it appears that the mm on the 1/2.8 sensor is roughly half that of the 1/1.2 sensor mm for the equivalent FOV. So the 177mm (on 1/2.8) zoom would approximate the 360mm zoom ( on 1/1.2). And the 300mm zoom on the (1/1.8) would actually...
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    Zoom equivalent on different sensors?

    Yes, I thought there might be an issue with EIS and tracking. I would like to use a tree as a mounting point. A very sturdy tree and it won't be too high up, but it is still a tree. So I think I may need the gyroscopic OIS.
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    Zoom equivalent on different sensors?

    Those are my thoughts as well. I think it should outdo the other two with its 1.97° FOV. But it probably isn't the whole story without OIS for a superzoom (optical image stabilisation). I think electronic image stabilization (EIS) may cause blurring when auto-tracking. And there will always...
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    Zoom equivalent on different sensors?

    From my DSLR days, the stated mm of a zoom lens had to be understood regarding its sensor size. In other words, the 35 - 100mm Zoom on a 4/3rds sensor gave approximately the same FOV as a 70 -200mm on a full-frame sensor. How does it work with IP cameras? For example: The SD6CE245XA-HNR is 3.95...
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    Cliff Notes query?

    Yep, I am going to be considering those cameras as well. And yes, the thermal cam's optical lens is a bonus; I actually want the reach of the thermal lens. Regarding evading PTZs, I think hoodies and masks will be used rather than understanding how these cameras can be foiled. I think, in some...
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    Cliff Notes query?

    Yes, you are correct. This will be my approach to match the camera to a specific purpose. I will have a combination of wide-coverage spotters and long-range spotters like that thermal cam. It won't identify at 200m out, but it can spot for a PTZ. I have been working in Ireland for the past 20...
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    Cliff Notes query?

    I am in touch with Andy about a PTZ with the auto-tracking FW. Auto-tracking is a must-have. The 5442 range also impresses me, but my situation is such that I need long focal lengths. The direction of approach of intruders could be from any direction, so there isn't a specific entrance access...
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    Cliff Notes query?

    I have spent a good few hours reading posts on the forum and looking at video capture quality. I have also taken to heart the wisdom of having spotting cameras coupled with PTZs. Considering multiple 49225s plus maybe a 45x 2mp big boy. Cameras that appeal to me as spotters are...
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    Cliff Notes query?

    I have a DSLR background, so I know that balancing pixel size, sensor size, and lens aperture must be done. If one aspect is lacking, the whole suffers. F1.0 + 1/1.2 sensors+ 4K seems to be the best tech at the moment. I am not trying to save money; I really want the best I can afford.
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    Cliff Notes query?

    OK, it appears for the time being that an NVR 5208 should be pretty capable with eight 4K cameras at 15 FPS. (Speak up if someone disagrees). A WD purple HDD seems capable as well. So onto an external switch supplying POE, what is the POE requirement? POE, POE+ or POE++. I can't see some of...
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    Cliff Notes query?

    Thanks, I understand about lowering FPS; Presumably, halving the FPS halves the bandwidth requirement. I just wanted to add an arbitrary constant FPS to compare apples with apples. We can call it 15FPS if that's the norm.
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    Cliff Notes query?

    Sorry, @jarrow I see you answered my bandwidth question. Is there any rule of thumb as to how many 4K cameras a 320Mbps NVR can continuously record at say 30fps?
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    Cliff Notes query?

    Thank you both for that. That seems simple enough. Any idea about the 4k camera bandwidth question?
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    Cliff Notes query?

    In my case, it will be convenient to use fibre between outbuildings with multiple cameras on them. So an NVR without POE could be an option, However, I do not want to sacrifice internet access by using the WAN/LAN port or are they equipped with more than one? (I refer to DHI-NVR5208-4KS2E...
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    Cliff Notes query?

    Thank you for your reply. Another question, if I may. Do I have to use an NVR port per camera? If I had a multi-channel POE capable switch that fed eight cameras, could I use only one ethernet capable between the switch and a single NVR port? Would I still use all eight channels on the NVR?
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    Cliff Notes query?

    Cliff Notes quotation below: "They also offer NVR’s without PoE power that require a separate PoE switch to power the cameras. While more expensive, this allows greater flexibility, and makes it easier to directly access cameras." I am a Noob, but I would've thought that a POE-capable NVR would...
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    Hello, just joined.

    Hi everyone, I just joined the forum. I will be retiring to a rural setting in South Africa (from Ireland) within the next 18 months and figure I better get my domestic security ducks in a row. I have had a couple of bicycles pinched in Ireland over the years. Everything else in the country can...
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