iPhone knowledge app
Night view shooting ISO sensitivity noise Ver 1.0.4 iScene Support Page
Released: October 27, 2015 free version (with ads)

□ contents of the app
Mirrorless SLR rather than shooting in smartphone, it is an ordinary camera description of ISO sensitivity and noise of the relationship that is not essential for night view taken with the premise, such as a digital single-lens reflex.

I have published a Simulation based on the night view live-action shooting of respect now, "SONY α7S" high sensitivity ISO sensitivity of the topic (the highest ISO sensitivity 409600).
It is a high-sensitivity shooting is possible camera that can not be experienced in a conventional camera.
The sight of the city at night view M (exposure priority mode), aperture F1.8, shutter speed 1/800 seconds, in the captured relationship of sensitivity and noise generation up to a total of 40 stages up by one stage the ISO sensitivity of the fixed a I am caught.

[The ISO]
Caution when shooting a night scene is this ISO sensitivity. The ISO sensitivity in the film by means of the sensor sensitivity of the imaging element will be the same the same meaning as the ASA sensitivity.
Is the same as the imaging sensitivity of the film, the number the higher the larger the more sensitivity, you will be able to cut a faster shutter also at the same brightness of the subject.
And ISO 100,200,400,800 specifically, the number is (squeeze one stage or stop) the shutter speed to be faster one stage each time is doubled, it is possible.
Because the film camera was decided sensitivity for each film to be used, to change the sensitivity had to replace the film.
The current digital cameras, can be set at any time during the shooting sensitivity, it can also be taken in a different ISO sensitivity for each one.
It is those same as particles and increase the sensitivity and the film becomes more rough this is referred to as noise.
Although no choice but to raise the ISO sensitivity when it comes to handheld shooting it will become to photograph noise swings will also hand out to (you can check if enlarge) By way.
ISO sensitivity (128000 till) above there is no noise and would be able to shoot in almost hand-held even if the state is in low, but the ISO sensitivity to be set was required until now "SONY α7S" as much as possible in the case of obtaining the clean image quality It is.
This is What a surprise, it is proposed that it be Negaere reference because it me for a photo that was photographed at the following on that point.

● Table of Contents

[ISO Noise Confirmation / ISO high sensitivity noise confirmed live-action shooting display description]
○ ISO sensitivity setting number 40 against M (exposure priority mode) aperture F1.8, fixed shooting shutter speed 1/800 sec
○ shooting time PM20: 01~20: 04 3 minutes
○ shutter speed, we have guidelines in noise situations, such as environmental conditions at the time of shooting illustration picture.

[ISO photographed image larger image]
○ expanding confirmation display at three times magnification is possible.
○ the noise occurrence of each ISO sample photos in a pinch expand the sample image (enlargement / reduction in the double tap) 2tap we discuss noise.
○ You can compare the 40 images that were expanded by three times magnification at the slider.

[Comparison with the older machine]
○ Comparison of the noise emissions of the other manufacturers older machine and "SONY α7S".

[Α7S Photos handheld shooting]
○ Tokyo Landmark Tower
 I have tried it without a tripod.
○ Shitennoji Osaka
 I have tried it without a tripod.
○ Kobe Kobe Tower
 I was shooting forget tripod.
○ Nara Todai-ji Temple
 I have tried it without a tripod.

Introduction of the author
□ luke (Luke) Uncle
Posted to (move) action for photography method had summarizes for easy built-in understanding of the function at the Brogue (himself to manufacture this app).
There is still insufficient explanation, but I would appreciate your favor, so we do intend going to further understand easy app to version up.