Exposure reading
Oct 30, 2017 21:57:08 #
My question is as follows if I'm shooting manual in app shutter and iso. When I adjust the exposure reading I do not notice any of the settings being changed what is exactly being changed in order to change the exposure of my photo.
Oct 30, 2017 22:04:01 #
dyximan wrote:
My question is as follows if I'm shooting manual in app shutter and iso. When I adjust the exposure reading I do not notice any of the settings being changed what is exactly being changed in order to change the exposure of my photo.
There is not enough information here. Please give all the details such as camera, app?! And and what exactly it is your are trying to do.
Oct 30, 2017 22:06:13 #
dyximan wrote:
My question is as follows if I'm shooting manual in app shutter and iso. When I adjust the exposure reading I do not notice any of the settings being changed what is exactly being changed in order to change the exposure of my photo.
If you are shooting in full manual exposure what changes is the shuter speed and/or the aperure and/or the ISO depending on what you adjust. The exposure readings displayed on the cameras, I use, will show the changes.
Oct 30, 2017 22:07:30 #
I'm not trying to do anything I'm just wondering if you put let's say any camera in manual mode and set the aperture the shutter in the iso. On the Fuji XT2 I was using you are also allowed to adjust the exposure and it would lighten or darken the photo and none of the other readings would change. I was wondering what the camera is doing to change the exposure if it doesn't adjust any of the three
Oct 30, 2017 22:11:32 #
RichardTaylor wrote:
If you are shooting in full manual exposure what changes is the shuuter speed and/or the aperure and/or the ISO depending on what you adjust. The exposure readings displayed on the cameras, I use, will show the changes.
On the XT two I can set each of the three manually and they do not change unless I do it myself , and there is an exposure plus or -3 which can also be adjusted by the dial and I was curious as to what it is adjusting if the other three are essentially Etched in stone at that moment in time.
Oct 30, 2017 22:11:52 #
dyximan wrote:
My question is as follows if I'm shooting manual in app shutter and iso. When I adjust the exposure reading I do not notice any of the settings being changed what is exactly being changed in order to change the exposure of my photo.
If you don't understand your camera just put it in the program mode...at least you will get something.
Oct 30, 2017 22:19:56 #
dyximan wrote:
On the XT two I can set each of the three manually and they do not change unless I do it myself , and there is an exposure plus or -3 which can also be adjusted by the dial and I was curious as to what it is adjusting if the other three are essentially Etched in stone at that moment in time.
That sounds like exposure compensation (I don't own an XT) it normally only works in one of the in one of the "auto" modes like shutter or aperture priority. It wiil change the aperture if you are in shutter priority and change the shutter speed if you are in aperture priority. In fulll manual exposure mode you should control everything.
Oct 30, 2017 22:23:53 #
You're changing the influence the light meter has on the sensor.
Oct 30, 2017 22:30:53 #
srherrmann wrote:
You're changing the influence the light meter has on the sensor.
OK that makes sense and that I understand
Oct 30, 2017 22:43:04 #
srherrmann wrote:
You're changing the influence the light meter has on the sensor.
if you have the time patience and could be so kind could you explain the difference between the light meter sensitivity and the iso sensitivity. Will it create a noise like iso ?
Oct 30, 2017 22:59:07 #
I think I understand your question. I believe you’re saying that you’re in full manual mode and you change the exposure compensation - is that correct? If so, when in full manual, you see a light meter scale in the finder, and the object (assuming you meter correctly) is to adjust shutter speed, aperture (f stop) and ISO so that the meter reads the center of the scale (0). When you change the EC, it changes the meter reading (only) by that amount. It doesn’t change shutter speed, aperture or ISO, just the reading. Then YOU must change one of those 3 parameters to re-center the meter for the new “correct (exposure compensated) exposure. Is that what you were asking, and does this make sense?
Oct 30, 2017 23:02:47 #
Changing exposure compensation is like when you are using a scale to weigh something and you put a weight on it then re-zero the scale. Iso would be more like the accuracy of the scale in terms of rounding the weight off, ie. to the nearest tenths, hundredths etc. No, there would be no increase in noise as that is a function of the sensitivity of the sensor itself.
Oct 30, 2017 23:15:27 #
TriX wrote:
I think I understand your question. I believe you’... (show quote)
Yes that makes sense but what I am asking is what is being affected with in the camera to change that reading if none of the initial three settings are changing. But I think sthherrmsnn answered it saying that the light meter sensitivity was being affected. My next question then was like iso when you change its sensitivity you increase noise, does the light meter sensitivity increase noise as well or if so in a different way or not at all. As I sometimes like under expose darkened my Photos. What I am saying is I know that I was over and/or under exposing the photos as I wanted. But I was curious as to the actual mechanics and/or software within the camera because this action to happen. With out the other three being manipulated or changed anyway.
Oct 30, 2017 23:43:42 #
dyximan wrote:
Yes that makes sense but what I am asking is what ... (show quote)
Changing the EC or “light meter sensitivity” has no affect on noise, ISO, aperture or shutter speed - it just changes the meter reading. It’s exactly the same as if you took a mechanical meter and moved the meter scale left or right. In that case, there is no change to the actual voltage to the meter, just the scale/reading. Now if you choose to change the ISO to re-center the meter after a change in EC, then the noise will change. And if you choose to instead change the aperture, then the depth of field changes, etc.
Oct 30, 2017 23:58:52 #
TriX wrote:
Changing the EC or “light meter sensitivity” has n... (show quote)
Understood thank you for your time and explanation
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