Tue May 25, 2021 9:25 pm
FYI:
On my Pocket 4K (purchased Jan. 2019), with the Panasonic Lumix 25mm f1.7 model H-H025 lens (latest firmware 1.1) I can reproduce the following issue ...
With camera firmware 7.3 installed, I created the following 2 Presets (new from scratch):
Preset 1: Set lens f-stop to f1.7. BRAW Constant Quality 8:1 HD 1920x1080, 23.98 fps, HFR [On], Off-speed frame rate 120 fps. Save Preset.
Preset 2: Set lens f-stop to f2.8. BRAW Constant Quality 8:1 UHD 3840x2160, 23.98 fps, HFR [Off]. Save Preset.
When I switch between these 2 Presets, either:
- The lens' iris begins "clattering" (rapid clicking noise) continuously, and the camera must be powered-off to stop it.
- Or, the Iris status text at the top of the monitor is blank (no aperture value is displayed).
In either case, after I power cycle the camera, the Iris status text is displayed correctly. Other than this specific issue, my Lumix 25mm f1.7 lens works fine with firmware 7.3.
Under firmware 6.9.6, Presets created new from scratch as described above don't have any issues with this lens.
Also, my other 2 lenses (Olympus 12-40mm f2.8, and Lumix 45-175mm f4.0-5.6) don't have any issues under firmware 6.9.6 or 7.3, and these 2 test Presets also work fine with these lenses. Of course, neither of these other 2 lenses can open their aperture as wide as f1.7.