Camera simulator, Exposure calcul

- Set Increm/Decrement Step : --- Pls choose Step: 1, 1/3, 1/6 --- 1/1 Ev Increment/Decrement Step 1/3 Ev Increment/Decrement Step 1/6 Ev Increment/Decrement Step
- Set Scene Light Value : --- Pls choose Scene Light Value to start with --- -6 Ev Guided EQMount Dso Astrophotography -4 Ev Guided EQMount DSO Astro Orion-full -2 Ev EQMount DSO Astro-Photo M42-core 00 Ev Very Dark areas at night 02 Ev Dark streets at night, Dark indoor 04 Ev Poorly lit areas at night, ditto indoor 06 Ev Normally lit night streets, ditto indoor 08 Ev Las Vegas at night, Grand Casino indoor 10 Ev Near Sunrise or Sunset scenes 12 Ev Overcast daylight or open shade 14 Ev Sunny Landscape under Blue sky 16 Ev Sand, Sea, Snow in Bright sunlight

  Set F/  +Aperture– CalcApe , SS +ShttrSpeed– CalcSS(re)calcul.

- Iris Aperture : f/   - Shutter Speed :  sec.

- Sensitivity : iso   - Scene Light Value :  ev.

 Set ISO –ISOSensi+ CalcISO , LV –LightValue+ CalcSLV(re)calcul.

Reset (in case) Step=1 Scene=10Ev - date: .
Left / right: decrease/increase Aperture, Shutter-Speed, ISO, SLV - Numbers.
– / +: Decrease / Increase - Amount of Light on sensor or Image Brightness.
Calc(ulate): Aperture, ShutterSpeed, ISO, SLV from the 3 other Values.
3 Ev Steps: 1, 1/3, 1/6 - 12 Scenes: Light Value –6 Ev to 16 Ev.
For 1/2 Ev increment, Set 3/6 Ev Equivalent increment.
From " Precise-Values " to " Nominal-Settings ".
= Numbers inside vs ones on the camera.

Short / Long-Exposure Computed examples

Samsung NX-mini has Class-Leading specs for Astro- or IR-photography.
4 minutes Exposure at f/5 works perfectly at a Noiseless ISO 400 setting.
Resolution of 20+ Mega-Pixel + Green Peak Quantum Efficiency of 84%.
Its Price is $100euro or even less and its IR-cut Filter is Easy to Remove.
Dxo=85 (CanG7x+SonyRx10²)/2 +2/3Ev w/o IRcut =135 rounded to 141.

M-42, M-43 nebulae, Orion Warrior -- this with my Selfie Camera
Astrophotography D.S.O. with the Samsung NX mini

Nikon D600, D610, D750 are very Good Tools for Astro-Photography too,
their imx128 Sony Exmor sensor is at its Best from ISO 100 up to ISO 400.

Clusters, M-42, M-43, NGC-1977 Running Man -- Sensor Comparison, Ranking

Orion examples Settings: 1 digital min. value's often 64 sec, Dxo ISO #s used.

the Pentax K-5 works in a totally opposite way than the Eos 20d and Eos 5d.
Long Exposures at base ISO-80 are 100% NoiseFree. Not even Amp-Glow.

Clusters, M-42, M-43 and the nebulae around
Clusters, M-42, M-43, nebulae around
Pentax K-5 Galaxies, Nebulae
M-42, M-43, nebulae around : Orion, 1500 Light-Years away
Pentax K-5 Astrophotography -- The ISO-80 Marvel

tests said my 2004 Eos 20d is ~1/3Ev less than 1600 sensitive: ISO-1270.
my 2006 Eos-5d is same ~1/3Ev below 1600, so I kept this real ISO-1270.

Canon Eos-20d, Eos-5d Astrophotography, Tests ISO-100 vs 1600
Clusters, M-42, M-43, the most parts of NGC-1977
Clusters, M-43, M-42, Running Man - NGC-1977
Clusters, M-42, M-43, some parts of Ngc-1977

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