Hi there! Thank you for sharing your detailed review! We really appreciate your insights as a long-time Panasonic/Lumix user. It’s great to hear that you’re finding the lens suitable for your needs, especially with its performance during daylight and star photography. We understand your concerns about focusing at the long end in low light, and we’ll certainly take note of that for our future updates. As for the firmware update, we’re always working to improve performance, so we’ll keep an eye on that. We value your feedback and are glad to have you as part of the Panasonic family.