
der Blickwinkel
perspective
A particular way of looking at and judging a situation or topic; a perspective or point of view.
Aus meinem Blickwinkel sieht die Sache ganz anders aus.
From my perspective, the matter looks completely different.
perspective / angle
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perspective
A particular way of looking at and judging a situation or topic; a perspective or point of view.
Aus meinem Blickwinkel sieht die Sache ganz anders aus.
From my perspective, the matter looks completely different.

angle
The actual, physical angle from which you look at something.
Der Fotograf wählte einen tiefen Blickwinkel, um das Gebäude größer erscheinen zu lassen.
The photographer chose a low angle to make the building appear larger.
The word is made up of 'Blick' (look / gaze) and 'Winkel' (angle). So it literally describes the 'Winkel des Blicks' (angle of view), which fits both the physical meaning and the figurative meaning as 'Standpunkt' (point of view).
Lass uns den Blickwinkel ändern, um eine Lösung zu finden.
Let's change the perspective in order to find a solution.
In the figurative sense, 'Blickwinkel' is often used with the preposition 'aus' (from). Fixed phrases include 'den Blickwinkel wechseln' (to change perspective) or something 'aus einem anderen Blickwinkel betrachten' (to look at something from another perspective).
Aus dem Blickwinkel der Mitarbeiter ist die Entscheidung nicht nachvollziehbar.
From the employees' perspective, the decision is not understandable.
You can recognize the physical meaning from the context. When it is about photography, art, or actual seeing, the visual angle is meant. In discussions about problems or opinions, it means the point of view.
Die Kamera hat einen sehr weiten Blickwinkel.
The camera has a very wide angle of view.
perspective / prospects
Perspektive and Blickwinkel can both refer to a particular way of looking at something. Perspektive can mean the broader framework of a role, situation, or experience. Blickwinkel tends to highlight a particular direction or a single aspect of the way something is viewed.

Aus finanziellem Blickwinkel erhöht die Verzögerung vor allem die Kosten des Projekts.
From a financial perspective, the delay mainly increases the project’s costs.
Aus der Perspektive der Beschäftigten gefährdet die Verzögerung das ganze Projekt.
From the employees’ perspective, the delay puts the entire project at risk.