Now I'm cooking with gas!
- Thread starter Dingo
- Start date
Lookin' great! Since you asked, a little more front-focused on #2 would have made a great pic that much better. Remember, DOF is 1/3 in front, 2/3 behind your focus point. So if something is coming right at you, focus closer to the front than the middle. Takes some practice but it's easy and really works to get the whole thing in focus.
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reefrunner
Contributing Member
What camera are you using?
reefrunner
Contributing Member
I believe EV stands for exposure value, there are a couple of things that are measured in EVs, flash being one and exposure compensation is another. Not sure what else might be measured in EVs.
Dingo
Member
Thanks, Dickie and Mattie.
I'm using a Sony DSC-F707. The camera is a couple of years old. It's a 5 megapixel digicam with a 5X optical zoom. The camera has a great Carl Zeiss lens. The only issue I have with it is that I couldn't zoom in on the macro shots like I wanted to, so I just went out and spent 30 bucks on a set of macro lens filters that screw on the end. Now I can get pretty close shots. They are hard to focus, though. Also, that lens is pretty big, so the camera would be bulky to take to Disney World, or something.
Many digital cameras allow you to change the sensitivity of the ccd inside that reads the light coming through the lens. That sensitivity level is called the EV. Is you turn it down, you get less exposure for a given arperture/shutter speed combination.
When I was allowing the camera to select shutter speed automatically, my photos were getting over-exposed, resulting in "blow out" or saturation of the brightest areas of the photo into white blobs. When that happens, you are losing color information in your photo. DrDrew suggested to me that I turn down my EV level to get rid of that, and I'm happy with the results.
Adjusting the EV level is not somthing that would help any particular photo. It's just that my particular camera over exposes shots of my tank. Yours may not.
I'm using a Sony DSC-F707. The camera is a couple of years old. It's a 5 megapixel digicam with a 5X optical zoom. The camera has a great Carl Zeiss lens. The only issue I have with it is that I couldn't zoom in on the macro shots like I wanted to, so I just went out and spent 30 bucks on a set of macro lens filters that screw on the end. Now I can get pretty close shots. They are hard to focus, though. Also, that lens is pretty big, so the camera would be bulky to take to Disney World, or something.
Many digital cameras allow you to change the sensitivity of the ccd inside that reads the light coming through the lens. That sensitivity level is called the EV. Is you turn it down, you get less exposure for a given arperture/shutter speed combination.
When I was allowing the camera to select shutter speed automatically, my photos were getting over-exposed, resulting in "blow out" or saturation of the brightest areas of the photo into white blobs. When that happens, you are losing color information in your photo. DrDrew suggested to me that I turn down my EV level to get rid of that, and I'm happy with the results.
Adjusting the EV level is not somthing that would help any particular photo. It's just that my particular camera over exposes shots of my tank. Yours may not.
reefrunner
Contributing Member
Yep, this is also called exposure compensation
Granted I have a limited experience, but I haven't met the digicam that doesn't overexpose in auto or aperture priority mode. Usually isn't a problem i shutter priority cause you want a faster shutter speed than is probably called for for the given lighting anyway. So that is probably a useful tip for most that shoot in aperture priority.
Which close up lenses did you get? I have the hoya +1, +2 and +4 and haven't had a chance to play with them yet. I have been reading that you have a very thin DOF when using these filters.
Dingo
Member
Reefrunner,
I got a set of +1, +2 and +4 also. They don't behave exactly like I thought they would. They aren't magnifying lenses. Rather, they allow my zoom to focus closer to the camera. So to take a macro pic, I can take it out of macro mode and use my zoom. The more filters I stack, the more I can jack up my zoom closer to the subject.
With all three lenses, and the camera lens zoomed in, the DOF gets so narrow that it is really tough to focus a decent shot.
I got a set of +1, +2 and +4 also. They don't behave exactly like I thought they would. They aren't magnifying lenses. Rather, they allow my zoom to focus closer to the camera. So to take a macro pic, I can take it out of macro mode and use my zoom. The more filters I stack, the more I can jack up my zoom closer to the subject.
With all three lenses, and the camera lens zoomed in, the DOF gets so narrow that it is really tough to focus a decent shot.
