Camera optical lens

A camera optical lens comprising eight lenses, from an object side to an image side in sequence:

• a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens, a fifth lens, a sixth lens having a positive refractive power, a seventh lens, and an eighth lens having a negative refractive power;
• wherein the camera optical lens satisfies the following conditions:
• 0.95≤f/TTL;
• −4.00≤f2/f≤−1.80;
• 1.30≤d12/d13≤5.50;
• and
• −20.00≤(R9+R10)/(R9-R10)≤−2.50;
• where
• TTL denotes a total optical length from an object-side surface of the first lens to an image surface of the camera optical lens along an optical axis;
• f denotes a focal length of the camera optical lens;
• f2 denotes a focal length of the second lens;
• d12 denotes an on-axis distance from an image-side surface of the sixth lens to an object-side surface of the seventh lens;
• d13 denotes an on-axis thickness of the seventh lens;
• R9 denotes a central curvature radius of an object-side surface of the fifth lens;
• and
• R10 denotes a central curvature radius of an image-side surface of the fifth lens.