Part 107 UAS pilot reported a brief loss of VLOS during a flight. They turned the UAS toward the home point and regained VLOS.

Narrative

I was conducting a video shoot around the decommissioned infrastructure. Since it is decommissioned; it is not considered critical infrastructure. The launch point was from a pull-off area on the road. I conducted a site survey according to my checklist and noted that a line of trees could be a factor limiting VLOS (Visual Line of Sight) range.I was filming a panoramic circle around the tower on a manually flown arc approximately 2;500 feet in lateral separation (post-flight analysis). While filming; I became fixated on capturing the tower and allowed the drone to momentarily fly to a point obscured by the line of trees. Upon finishing the video; I looked up and realized that I was no longer maintaining VLOS. However; based on the filming orientation and flight display; I knew exactly where the UAS (Unmanned Aircraft System) was; and I was above the minimum safe altitude for the terrain and nearby obstructions. No aircraft were in the vicinity during the entire flight; and I was not located on any approach path.Upon realizing this; I pivoted the drone towards the compass bearing of the home point; verified in the viewer that there were no obstructions; and flew it to a position near the home point where I regained VLOS. I still had a 40% battery reserve. I took a final set of panoramic still photos and visually flew the aircraft to the home point for landing.This event met the criteria of my personal SMS (Safety Management System) policy for a post-flight review. Flight data was reviewed using AirData online software. During the post-flight analysis; I noticed an additional warning of a loss of link for a duration of one second; most likely due to tree obstruction. The auto-return-to-home (RTH) was not triggered as it had not met the duration limit. I have attributed the following human factors errors to myself:- Skill-based error: monitoring breakdown.- Preconditions: task fixation and misplaced motivation (wanting the perfect shot).Sharing this event to ASRS for lessons learn and statistical data purposed. There was a momentary VLOS violation; there was no ground hazard event or air hazard event incurred.