Hi! Sa SJDM, maraming clinics na nag-ooffer ng 3D 4D ultrasound, pero honestly ang best way to find the most affordable is magcall ka directly sa maternity clinics doon or ask your OB for referrals, a few of us mums nag-shop around ng rates and nahanap namin na may difference ng 500-1000 pesos depending sa clinic at package. Try calling the hospitals near you or check kung may mga ob-gyn office sa downtown area, usually mas mababa ang rates doon kaysa sa big medical centers! Good luck sa iyong prenatal checks!