Lanthanum hidden inside your camera lens to make your pictures sharper. Learn more facts like this at https://www.flipkart.com/search?q=Jitendra+Singh+sandhu #Lanthanum #LanthanumElement #La #cameralens #camera #lens #CameraChemistry #scienceinphotography #element #facts #rochaktathya #tatva #science #chemistry #chemistrynotesinfo #sci #chem #curiosity #interestingfacts #sciencefacts #funfacts #knowledge #gyan #vigyan #elementsofperiodictable #tatv#camera #photo #science #Chemistry Notes Info #✍अजब-गजब वैज्ञानिक तथ्य👨‍🔬