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08/03/2005 05:24:47 PM · #1 |
There's something in my D70 that has been bothering me for a wile. It's the EV compensation.
I was used to my Fuji S5000, and I understood it quite well, at least it seemed that way. But know sometimes when I put it to compensate for example +1 or 2 steeps it does nothing. I did some recento photos for some bands and my lenses are not very fast, so what I usually do is set them in shutter priority, shutter speed acordingly to focal lengh because I prefer to get a slight dark photo than a photo with camera shake apearing. So regarding this I sometimes compensate it in the EV compensation. I do I photo to check light out and compensate, but the image stays the same. What is happening? Is it because I've reached the maxximum apperture and the camera doesen't have how to compensate? I gess it's this because when I change it to "P" mode, and I compensate what happens is that in this low light sittuations the camera compensates by elevating the exposure time. I thought this was an internal process but if this is confirmed it's all about the camera and lens performance after all. The only big difference is with the flash. I can really see the EV compensation working there!
Any thoughts?
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08/03/2005 05:28:19 PM · #2 |
What is the aperture on the images in question? If it is the smallest (largest opening) for the lens at the focal length you are shooting then you have your answer.
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08/03/2005 05:37:27 PM · #3 |
Yes, the apperture is the wider at the photos in question. So my thoughts are correrct?
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08/03/2005 06:05:42 PM · #4 |
The camera will only go as far as it physically can. If you need more light sensitivity, try adjusting the ISO.
Message edited by author 2005-08-03 18:05:55.
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08/03/2005 06:24:50 PM · #5 |
Originally posted by cpanaioti:
The camera will only go as far as it physically can. If you need more light sensitivity, try adjusting the ISO. |
exactly! it sounds like you've reached the limits of your AV and you'd need to change either the ISO or the SS to increase exposure.
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08/04/2005 06:26:41 AM · #6 |
First, to see if there is any actual difference in exposure between the different shots, look at the exif data on each to see what the aperture, shutter speed, ISO and EV compensation were set at. There is no need to guess at what has happened, just open the files and look. :p
Second, EV compensation is not an exposure setting -- there are only three of those; Aperture, Shutter speed and ISO. EV compensation is a meter setting that adusts how the meter reads the light on the scene. I wrote an article on EV compensation for the Exposure mentor group -- perhaps you will find it of use as well. The PDF is available here: Exposure Values.
David
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