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CAMERAS. The dark cloth covering the photographer and the box body of the camera blocks out undesirable light, which might otherwise interfere with the.

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Presentasi berjudul: "CAMERAS. The dark cloth covering the photographer and the box body of the camera blocks out undesirable light, which might otherwise interfere with the."— Transcript presentasi:

1 CAMERAS

2 The dark cloth covering the photographer and the box body of the camera blocks out undesirable light, which might otherwise interfere with the picture

3

4 PINHOLE

5 A simple camera can be built by making a pinhole in a box. Light passes through the hole and forms an inverted, backwards image of the subject on the back of the box. The image will be somewhat dim, but the detail sharp enough that properly placed film will produce a good photograph. However, this kind of photography only works if the film receives absolutely no other light.

6

7 A parts of Cameras Lens The lens is the eye of the camera. Its function is to bring light from the subject into focus on the film Film Aperture The lens diaphragm controls the size of the aperture, or lens opening, and thus the amount of light that passes through the lens.

8 Bagan kamera Film Gerak lensa x x x Lensa diafragma Apertur

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10 The photographer, or an automatic mechanism in some cameras, must adjust the distance between the lens and the film so that the plane of focus falls exactly where the film lies, making the resulting image appear in focus.

11 EYE

12

13 Bandingkan dengan bagan mata Retina x xx

14 Persamaan antara mata dan kamera Mata Lensa mata Iris Pupil Retina Sifat bayangan Kamera Lensa Diafragma Aperture Film Sifat bayangan

15 Perbedaan Kacamata dan Kamera mata Jarak bayangan tetap Untuk menempatkan bayangan agar jatuh di retina dilakukan dengan mengubah jarak fokus lensa Kamera Jarak bayangan berubah Untuk menempatkan bayangan agar jatuh di film dilakukan dengan menggeser lensa

16 lup

17 Bagaimana Lup digunakan Alat untuk memperbesar bayangan Bayangan yang terbentuk adalah maya Benda diletakkan di ruang 1 Ada dua cara pengamatan dengan lup –Mata berakomodasi –Mata tidak berakomodasi

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19 microscope

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21 Bagaimana Mikroskop bekerja Terdiri dari susunan dua buah lensa positif Lensa obyektif memiliki fokus lebih kecil dibanding lensa okuler Prinsip kerja mikroskop adalah membentuk bayangan nyata yang selalu diperbesar Benda harus diletakkan di ruang 2 lensa obyektif

22 Pembentukan bayangan X xxxx xx xx Fob O Fob Fok O Fok

23 Pembentukan bayangan X xxxxxx xx Fob O Fob Fok O Fok

24 Bagian-bagian mikroskop

25 Pembentukan bayangan pada mikroskop Ada dua cara pengamatan dengan mikroskop : –1. dengan mata tak berakomodasi –2. dengan mata berakomodasi

26 MIKROSKOP DENGAN MATA TAK BERAKOMODASII ooooo oo o 2FFF2F

27 MATA BERAKOMODASI oooooooo 2FFF2F

28 TELESKOP (TEROPONG) Teropong bintang xxxxx F.Ob F.ok/F.obF.ok

29 Kegiatan Pengamatan dengan Teropong

30 Teropong Bintang

31 Teropong Binokuler

32 PERISKOP (TEROPONG KAPAL SELAM)

33 TELESKOP (TEROPONG) Teropong bumi (Yojana) xxx x x x x x x Pembalik Ok Ob


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