Theta SC2 exposureCompensation not set using API

[Vivek_B]

I am trying to set Exposure Compensation using API 2.1 device is Theta SC2.

Same code work or Theta V but not on SC2.

Setting exposureCompensation with WiFi API v2.1

Several people have asked about exposureCompensation. I’m started to run tests to see if there is anything odd I could notice. Right now, everything looks fine. Set Option for exposureCompensation [image] [image] Get Option for exposureCompensation [image] [image] Test After Camera Turned Off Interestingly enough, when I power cycle the camera, the option is set back to 0.0 [image] [image] Is this the expected behavior or do people expect the exposureCompensation value to be saved b…

In SC2 photo image meta data also showing 0 Set in Exposure.

[craig]

Exposure compensation is set properly in the metadata. However, the getMetadata API does not work.

See this.

RICOH THETA SC2: Extracting Image Metadata and Checking Camera State

The video above many much more information is available here:

RICOH THETA SC2 Developer Information

Problems with SC2

Unfortunately, _getMetadata does not work correctly on the SC2 as of July 10, 2020. You should Run the test yourself for each property you want to use to make sure that the camera is providing your app with the correct data.

Request

Response

Community Tests

exposure values with SC2

Key takeaways:

• The RICOH API for the SC2 has a few issues. The getMetadata call does not return the correct image exposure data.
• Correct exposure is saved to the file metadata and can be checked with ExifTool
• The RICOH API for the THETA V works fine. The getMetadata call returns the correct image exposure data

Using a THETA SC2 (Firmware Version: 01.31), I adjusted the exposure to -0.3EV from the mobile app and took a picture.

Ran getMetadata using the camera API.

Code snippet is below.

var url ='http://192.168.1.1/osc/commands/execute';

Map data = {
    'name': 'camera.setOptions',
    'parameters': {
      'options': {
        "exposureCompensation": 2.0,
      }
    }
  };

The API returned an ExposureBialsValue of NULL . Also note that the Model and Software values are missing.

Using ExifTool I was able to look at the metadata from the raw image file

I found that the raw image contained the correct exposure metadata of -0.3.

The takeaway is that the SC2 API has some issues. It does not return the correct image exposure metadata information. However, the correct metadata is stored in the image file.

exposure values with THETA V

Firmware Version: 3.30.1, getMetadata

Initially, the ExposureBiasValue is set to zero.

I adjusted the Exposure value to 1.3 from the official mobile app.

I used the API to make sure that the value was consistent. Success!

Using the API, I changed the ExposureBiasValue with the API to 2.

I looked at the metadata with the API. ExposureBiasValue = 2. Success!

SC2 Developer Information