Differences

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--- doc:appunti:hardware:olympus-e-m10-mark-ii [2019/12/15 18:42] – [Comparison with a Compact Camera] niccolo
+++ doc:appunti:hardware:olympus-e-m10-mark-ii [2020/06/16 18:54] – [Scene Mode] niccolo
@@ Line 109: / Line 109: @@
 ^ Portrait    | According to manual, it **//produces beautiful skin tones//**.  |
 ^ e-Portrait  | The manual says about this mode that it **//produces smooth skin textures//**.  |
+===== F-Stop Values =====
+Traditionally the **f-stop scale** is composed of values which distantiate each other by halving the light that is allowed to come in. A value of **f 1.0** means that the lens aperture (the hole diameter) is equal to the focal lenght. Each following stop value is obtained by multiplying the previous one by **the square root of 2**. So the value **f 1.4** means that the aperture is obtained by dividing the focal lenght by 1.4, and so on with **2.0**, **2.8**, **4.0**, **5.7**, ... The minimum aperture is usually **f 16** or f **22**.
+The Olympus E-M10 have aprture stops at 1/3 of each full stop values:
+|  1,0 |
+|  1,4 |
+|  2,0 |
+|  2,8 |
+|      |
+|      |  3,5
+|  4,0 |  4,0
+|      |  4,5
+|      |  5,0
+|  5,7	5,6
+|  	6,3
+|  	7,1
+|  8,0	8,0
+|  	9,0
+|  	10,0
+|  11,3	11,0
+|  	13,0
+|  	14,0
+|  16,0	16,0
+|  	18,0
+|  	20,0
+|  22,6	22,0
 ===== OLYMPUS Image Share =====