Optical photographing lens assembly, image capturing device and electronic device

An optical photographing lens assembly comprising five lens elements, the five lens elements being, in order from an object side to an image side:

• a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element;
• wherein each of the five lens elements has an object-side surface facing towards the object side and an image-side surface facing towards the image side;
• wherein at least one of the five lens elements has at least one of the object-side surface and the image-side surface being aspheric;
• wherein the first lens element has positive refractive power, the image-side surface of the fourth lens element is concave in a paraxial region thereof and comprises at least one convex shape in an off-axis region thereof;
• wherein an Abbe number of the first lens element is V1, an Abbe number of the second lens element is V2, an Abbe number of the third lens element is V3, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, a curvature radius of the object-side surface of the first lens element is R1, a curvature radius of the image-side surface of the first lens element is R2, and the following conditions are satisfied:
• 0.40<(V2+V3+V5)/(V1+V4)<0.80;
• and
• R1<R2.

An optical photographing lens assembly comprising five lens elements, the five lens elements being, in order from an object side to an image side:

• a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element;
• wherein each of the five lens elements has an object-side surface facing towards the object side and an image-side surface facing towards the image side;
• wherein the first lens element has positive refractive power, the image-side surface of the fourth lens element is concave in a paraxial region thereof, and the image-side surface of the fifth lens element is convex in a paraxial region thereof;
• wherein the optical photographing lens assembly further comprises an aperture stop, there is no lens element located between the aperture stop and the first lens element, a focal length of the optical photographing lens assembly is f, a central thickness of the fourth lens element is CT4, a curvature radius of the object-side surface of the first lens element is R1, a curvature radius of the image-side surface of the first lens element is R2, an axial distance between the first lens element and the second lens element is T12, an axial distance between the second lens element and the third lens element is T23, an axial distance between the third lens element and the fourth lens element is T34, and the following conditions are satisfied:
• f/CT4<25;
• R1<R2;
• and
• T12<T23<T34.