shown with a sign asterisk after the surface number i fig2 shows a spherical aberration mm an astigmatism mm and a distortion of the image pickup lens according to embodiment 1 the spherical aberration diagram illustrates the amount of aberration with respect to the respective wavelengths of f ray 486 nm d ray 588 nm and c ray 656 nm further the astigmatism diagram illustrates the respective amounts of aberration on a sagittal image surface s and a tangential image surface t the same applies to fig4 6 8 10 and 12 as shown in fig2 it can be seen that the respective aberrations are satisfactorily corrected further the total track length ttl is as short as 4 56 mm and the ratio thereof to the maximum image height ih ttl 2ih is 0 82 so that downsizing is realized even in a five lens configuration moreover the f value is as bright as 2 52 and the half angle of field is approximately 35 8 u00b0 so that a relatively wide angle of field is realized fig4 shows a spherical aberration mm an astigmatism mm and a distortion of the image pickup lens according to embodiment 2 as shown in fig4 it can be seen that the respective aberrations are satisfactorily corrected further the total track length ttl is as short as 4 48 mm and the ratio thereof to the maximum image height ih ttl 2ih is 0 80 so that downsizing is realized even in a five lens configuration moreover the f value is as bright as 2 38 and the half.