I need to know the "Minimum focus limit" of the 'm50 ptz camera'.

[kuroda-torch]

I would like to know the minimum focal length on the design of the m50 ptz camera.
Unfortunately I do not currently have a camera.

My application is to take a picture of an object at about 50 cm.
I have tried to find the minimum focal length in the web catalog, the data sheet and the installation guide, but I could not find it.

Does anyone know where this information is written?

My English is poor and I apologize if I have missed something. Please let me know where it is located.

Thanks in advance.

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[vivekatoffice]

Hi @kuroda-torch ,
Hope you have checked the following:
227
569

[kuroda-torch]

Hi @vivekatoffice
Thank you for your reply.

I must apologize for not using the proper terminology.

I wrote minimum focal length, but minimum focusing distance is correct.
So what I want to know is, if an object placed 50cm in front of the camera will be in focus.

I understood that the focal length that I asked for and that you explained is the distance between the lens and the photographic element.
However, it is not possible for me to calculate whether the camera will be in focus from this number.

I found that the number I seek is displayed in the attached screen.
(Japanese. I am sorry. I think in English it would be "Minimum focus limit")

Unfortunately, I don't have a camera, so I can't know the value of this setting right now.
Is this setting value listed in the spec sheet?

[vivekatoffice]

Hi @kuroda-torch ,
I have one camera using the AXIS Virtual Loan Tool. Looks like it is using the following APIs:
Method: GET
URL:

http://195.60.68.14/axis-cgi/com/ptz.cgi?query=attributes&camera=1&format=json

Response:

{
    "Camera 1": {
        "panSpeed": "100",
        "tiltSpeed": "100",
        "speeds": [
            {
                "value": "1",
                "speed": "1.8"
            },
            {
                "value": "28",
                "speed": "5"
            },
            {
                "value": "40",
                "speed": "11"
            },
            {
                "value": "44",
                "speed": "14"
            },
            {
                "value": "62",
                "speed": "37"
            },
            {
                "value": "66",
                "speed": "44"
            },
            {
                "value": "73",
                "speed": "59"
            },
            {
                "value": "79",
                "speed": "75"
            },
            {
                "value": "84",
                "speed": "90"
            },
            {
                "value": "88",
                "speed": "103"
            },
            {
                "value": "93",
                "speed": "121"
            },
            {
                "value": "97",
                "speed": "137"
            },
            {
                "value": "100",
                "speed": "150"
            }
        ],
        "focusSpeed": "20",
        "minFocus": [
            {
                "value": "931",
                "distance": "150"
            },
            {
                "value": "4418",
                "distance": "300"
            },
            {
                "value": "5813",
                "distance": "500"
            },
            {
                "value": "6860",
                "distance": "1000"
            }
        ],
        "queryInterval": "300",
        "maxOpticalZoomMag": "10",
        "maxDigitalZoomMag": "12",
        "zoomSpeed": "100",
        "zoomSteps": [
            {
                "value": "1",
                "zoom": "1"
            },
            {
                "value": "1111",
                "zoom": "2"
            },
            {
                "value": "2222",
                "zoom": "3"
            },
            {
                "value": "3333",
                "zoom": "4"
            },
            {
                "value": "4444",
                "zoom": "5"
            },
            {
                "value": "5555",
                "zoom": "6"
            },
            {
                "value": "6666",
                "zoom": "7"
            },
            {
                "value": "7777",
                "zoom": "8"
            },
            {
                "value": "8888",
                "zoom": "9"
            },
            {
                "value": "9999",
                "zoom": "10"
            },
            {
                "value": "10909",
                "zoom": "20"
            },
            {
                "value": "12727",
                "zoom": "40"
            },
            {
                "value": "14545",
                "zoom": "60"
            },
            {
                "value": "16363",
                "zoom": "80"
            },
            {
                "value": "18181",
                "zoom": "100"
            },
            {
                "value": "19999",
                "zoom": "120"
            }
        ]
    }
}

If you consider the Min Focus value:

{
"minFocus": [
            {
                "value": "931",
                "distance": "150" //1.5 m
            },
            {
                "value": "4418",
                "distance": "300" //3 m
            },
            {
                "value": "5813",
                "distance": "500" // 5 m
            },
            {
                "value": "6860",
                "distance": "1000" // 10 m
            }
        ]
}

Then you can use the focus value using this VAPIX API:

http://195.60.68.14/axis-cgi/com/ptz.cgi?focus=931&camera=1

Reference

[kuroda-torch]

Hi @vivekatoffice

I greatly appreciate your prompt and accurate response.

Thank you also for introducing me to VLTool. I have never heard of this before. It is very useful and I intend to make use of it.

I mark this question as resolved.
Let me express my thanks once again.