For a thin lens, the distances S1 and S2 are calculated from the item and impression to the situation from the lens, as explained previously mentioned. In the event the thickness of the lens is just not much smaller sized than S1 and S2 or you'll find several lens aspects https://damientrqo161616.qowap.com/66032949/how-much-you-need-to-expect-you-ll-pay-for-a-good-lenses