<a href=showthread.php?s=&postid=10300816#post10300816 target=_blank>Originally posted</a> by brianbigoats
How can i fix the dark Pics would ISO 400 be better
Canon Digital Professional should have come with your camera kit. You can make many types of adjustments with that program. Read through the Help in the program and learn about histograms. When shooting with your camera often you will find that once you leave the program modes (sports and such) and go to the “Creative Modes†such as Av you will have a lot of control of the way your camera takes pictures. If you are in Macro mode, you are actually limiting yourself a lot. Learn how to use Av mode â€"œ shoot in RAW or RAW+Large Jpeg for ultimate control. Some time ago I picked up a book called “Canon EOS Digital Rebel XT†by Thomson Press and it really helped me get to know my camera.
Histogram for each photo can be viewed by pressing the Info button after hitting the preview. It will bring up this little graph looking thing split into 5 pieces. Each piece represents a stop (read the book
). If it goes off the graph on the left that means you lost picture data on the black (dark) side and cannot recover it easily or ever. The same if it goes off the right side, but those are whites or light colors. You can change your EV +/- to compensate â€"œ retake the photo and adjust again and so on. Lost data in the photo will blink. The more that is blinking the more your pictures will look washed out.
How does this happen? Well, there may be areas in your photo that are really black or that are really lit up â€"œ you'll have to compromise sometimes between the two. Also, it depends on what metering mode you are in which dictates where within the frame the camera is taking its light readings and how much it should compensate. Lets say you have a really bright area in your frame, you are in Av mode and then you press the little * button in that spot. The bright spot will look well exposed while the rest of the photo will look really black (like yours above). Your camera took the reflection of light from that coral and left the rest of the picture really dark. A compromise would be to find an area (it doesn't even have to be near the coral!!! remember that) that is medium lit and hit the * button then recompose and shoot the coral. A good rule of thumb is to under expose just a tad (EV) so you can fix it in post processing.
Sound confusing? Well, if someone showed you what exactly this all means you'd pick it up in less than 5 minutes. Its a whole lot easier than keeping that tank as pretty as you have it