The aperture of a lens, quite simply, is the opening through which light passes into the camera. The wider the opening, the more light can reach the camera sensor, which in turn affects the exposure of the image.

Just as the pupil in the human eye contracts in bright conditions and expands in low-light environments, the aperture needs to decrease or increase to achieve correct exposure – that is, a clear image that’s not too dark or too washed-out – in different lighting conditions. This narrowing and expanding is done by an array of aperture blades in the lens that move synchronously to adjust the size of the aperture, up to the maximum that the lens is mechanically capable of attaining.**

Jesus the Light of the World

John 8:1-12(NKJV)

But Jesus went to the Mount of Olives.2 Now early in the morning He came again into the temple, and all the people came to Him; and He sat down and taught them. 3 Then the scribes and Pharisees brought to Him a woman caught in adultery. And when they had set her in the midst, 4 they said to Him, “Teacher, this woman was caught in adultery, in the very act. 5 Now Moses, in the law, commanded us that such should be stoned. But what do You say?” 6 This they said, testing Him, that they might have something of which to accuse Him. But Jesus stooped down and wrote on the ground with His finger, as though He did not hear. 7 So when they continued asking Him, He raised Himself up and said to them, “He who is without sin among you, let him throw a stone at her first.” 8 And again He stooped down and wrote on the ground. 9 Then those who heard it, being convicted by their conscience, went out one by one, beginning with the oldest even to the last. And Jesus was left alone, and the woman standing in the midst. 10 When Jesus had raised Himself up and saw no one but the woman, He said to her, “Woman, where are those accusers of yours? Has no one condemned you?” 11 She said, “No one, Lord.” And Jesus said to her, “Neither do I condemn you; go and sin no more.” 12 Then Jesus spoke to them again, saying, “I am the light of the world. He who follows Me shall not walk in darkness, but have the light of life.”

The Light Shine is the Darkness

1 John 1:4-10(NKJV)

4 In Him was life, and the life was the light of men. 5 And the light shines in the darkness, and the darkness did not comprehend it.
5 This is the message which we have heard from Him and declare to you, that God is light and in Him is no darkness at all. 6 If we say that we have fellowship with Him, and walk in darkness, we lie and do not practice the truth. 7 But if we walk in the light as He is in the light, we have fellowship with one another, and the blood of Jesus Christ His Son cleanses us from all sin. 8 If we say that we have no sin, we deceive ourselves, and the truth is not in us. 9 If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness. 10 If we say that we have not sinned, we make Him a liar, and His word is not in us.

Thy Word is a Lamp

Psalm 18:28(NKJV)

28 For You will light my lamp; The Lord my God will enlighten my darkness.

Psalm 119:105 (NKJV)

105 Your word is a lamp to my feet, And a light to my path.

Psalm 119:130(NIV)

130 The unfolding of your words gives light; it gives understanding to the simple.

Become Sons of Light

John 12:34-36(NKJV)

34 The people answered Him, “We have heard from the law that the Christ remains forever; and how can You say, ‘The Son of Man must be lifted up’? Who is this Son of Man?” 35 Then Jesus said to them, “A little while longer the light is with you. Walk while you have the light, lest darkness overtake you; he who walks in darkness does not know where he is going. 36 While you have the light, believe in the light, that you may become sons of light.” These things Jesus spoke, and departed, and was hidden from them.

The Lamp of the Body

Luke 11:33-36(NKJV)

33 “No one, when he has lit a lamp, puts it in a secret place or under a basket, but on a lampstand, that those who come in may see the light. 34 The lamp of the body is the eye. Therefore, when your eye is good, your whole body also is full of light. But when your eye is bad, your body also is full of darkness.35 Therefore take heed that the light which is in you is not darkness. 36 If then your whole body is full of light, having no part dark, the whole body will be full of light, as when the bright shining of a lamp gives you light.”