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Old 03-06-2013, 12:43 AM   #1
gnod
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canon 24-70mm users


just curious but for the canon 24-70mm users, what settings are you guys using when you shoot for your fish tanks? i'm embarrassed to post up any photos of mine.

i have a light right over head the tank, at 1/60 @ 9 fstop, 1250 iso, roughly about 2-3 ft from the tank. maybe i need more light but i can't seem to get as crisp shots right now. i have my off camera flash ready but would rather not shock the shrimps with light unless i have to. haha

i also have 85mm 1.8 prime with me if that'll make a difference. after trying it out, it didn't for me.

i'm shooting with a 5dmk2.

thanks!
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Old 03-06-2013, 12:49 AM   #2
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Tripod? If not, stop the lens up some and get a fast shutter speed. That way you'll reduce or eliminate shaking from hand holding. Or get something to set the camera on that's steady, turn the ISO all the way down to 200 (100 if it goes that low), get good focus and use the timer function to take the shot.
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Old 03-06-2013, 12:49 AM   #3
sarahspins
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Try a faster shutter speed and opening up your aperture more (your lens goes to f/2.8 so don't be afraid to open up - you will lose some depth of field but that's not always a bad thing.. f/9 is very closed down)... at 1/60 it's going to be almost impossible to get a clean handheld shot. Using a tripod may help but if you have moving plants or swimming fish they will be probably still be blurred unless you can use a faster SS.
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Old 03-06-2013, 01:05 AM   #4
gnod
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Quote:
Originally Posted by sarahspins View Post
Try a faster shutter speed and opening up your aperture more (your lens goes to f/2.8 so don't be afraid to open up - you will lose some depth of field but that's not always a bad thing.. f/9 is very closed down)... at 1/60 it's going to be almost impossible to get a clean handheld shot. Using a tripod may help but if you have moving plants or swimming fish they will be probably still be blurred unless you can use a faster SS.
hehe, the only reason i tried shooting with a f/9 was just to try to get everything sharp and see how that comes out.

tried your way and it's a lot better but i was talking more about the sharpness of a zoomed in photo, of say my stationery shrimp. even when i shoot faster at lower fstop, with a stationary shrimp, they're coming out not as tac sharp.

i guess my question was, does anyone with 24-70 successfully use it for a decent macro use? i'm sure it can be done but was wondering if anyone has done it here. :P

thanks!
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Old 03-06-2013, 01:12 AM   #5
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I rarely use my 24-70 for fish shots but sometimes when I'm too lazy to use the speedlites, I'll open it up to 2.8 and bump the ISO up to 2000. Fast shutter speeds are very important for capturing anything moving. Tripods and Monopods also help because I tend to sway a little when taking pictures and that causes the blur.

I usually use manual focus on the 5dmkII or else I'll miss the shot.

Good luck!
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Old 03-06-2013, 02:29 AM   #6
gnod
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Quote:
Originally Posted by Kai808 View Post
I rarely use my 24-70 for fish shots but sometimes when I'm too lazy to use the speedlites, I'll open it up to 2.8 and bump the ISO up to 2000. Fast shutter speeds are very important for capturing anything moving. Tripods and Monopods also help because I tend to sway a little when taking pictures and that causes the blur.

I usually use manual focus on the 5dmkII or else I'll miss the shot.

Good luck!
noted, and thanks for all that info. im gonna try with my speedlite this weekend!
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Old 03-06-2013, 02:44 AM   #7
sarahspins
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Quote:
Originally Posted by gnod View Post
tried your way and it's a lot better but i was talking more about the sharpness of a zoomed in photo, of say my stationery shrimp. even when i shoot faster at lower fstop, with a stationary shrimp, they're coming out not as tac sharp.
If you shoot through flat glass at any kind of angle instead of straight on that will also mess up the sharpness of your image... there's some complicated physics involved there, but basically with smaller optics (such as your eye, or a cell phone camera) those effects aren't as obvious, on a larger scale like with your camera lens, they are.

It sounds stupid but because of that I have better luck getting pics of shrimp (and fish) with my phone than using my "real" camera, whether that's with the 24-70 or my macro lens (though I shoot nikon, the limitations of the optics are similar).
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Old 03-06-2013, 03:00 AM   #8
gnod
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Quote:
Originally Posted by sarahspins View Post
If you shoot through flat glass at any kind of angle instead of straight on that will also mess up the sharpness of your image... there's some complicated physics involved there, but basically with smaller optics (such as your eye, or a cell phone camera) those effects aren't as obvious, on a larger scale like with your camera lens, they are.

It sounds stupid but because of that I have better luck getting pics of shrimp (and fish) with my phone than using my "real" camera, whether that's with the 24-70 or my macro lens (though I shoot nikon, the limitations of the optics are similar).
haha, thanks for your observation. i'm sure the low grade glass on my tank affects it also.
regardless thanks for your feedback!
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Old 03-06-2013, 06:02 AM   #9
Bettatail
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Quality of the lens is its ability to capture light.

which means you can control the amount of light, you can pick any lens you like and take good pictures.
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