Control Z1 HDR, NR and ISO with USB API?

[drewgardner1]

Hello there, I have installed a Z1 one which is running quite happily on a Pi4b.

I am now refining the image quality and I am wondering if it is possible to control ISO, NR or enable the HDR remotely via GPhoto2 or PTP ?

Many thanks

Drew

[craig]

API specification

theta-api-specs/theta-usb-api at main · ricohapi/theta-api-specs · GitHub

HDR, Noise Reduction, DR

Adjust filter settings.

theta-api-specs/filter.md at main · ricohapi/theta-api-specs · GitHub

ISO

ISO step 1 - exposure program

first set exposure program mode to manual or ISO priority.

theta-api-specs/exposure_program_mode.md at main · ricohapi/theta-api-specs · GitHub

ISO step 2 - exposure index

then set the exposure index

theta-api-specs/exposure_index.md at main · ricohapi/theta-api-specs · GitHub

examples

this article has several examples:

NVIDIA Jetson and USB API for RICOH THETA

[image] NVIDIA Jetson with Jetpack 4.6 using USB API with THETA Z1 fw 2.10.3 on Oppkey robot In the .guide community, there are two primary ways to use the USB API with NVIDIA Jetson models: project library app pros cons oppkey opinion libptp2 ptpcam works with all USB API commands that .guide tested. No known problems. In wide use in .guide community code has not been updated in over a decade. Project appears to have no active maintainer. Code base and library may be difficult to us…

It was written for a Jetson, but the examples are the same on RPi. Current recommendation is to use gphoto2 as it is newer with more recent updates compared to ptpcam.

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Other

I remember that you were having problems with keeping the THETA charged. I’ve recently learned that the THETA X requires Power Delivery at 18w, not the BC 1.2 specification for the Z1.

[drewgardner1]

Is there a way to enable HDR permanently on USB API on a Theta Z1? As in, to make it capture any subsequent image taken over USB in HDR mode even after sleeping.