Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
thats too much math, if you're on a tripod anyway, move it up to 5.6 or 8 even, make more distance from your subject to the background and use a longer shutter speed. if you spend all your time fretting about numbers you'll stop seeing your subject the way you want to see it, imo.
When dealing with a thin DOF, it usually helps turning off the auto-focus, and doing it manually. If you have live-view on your camera, you can get very precise focus doing it manually, expecially if you have your camera on a tripod. The workflow that I would use for closeup shots like yours, is to put the camera on a tripod, place it approximately at the right distance to get the framing you want, turn the lens AF off. Now depending on how much DOF you want, you should use the DOF calculator, at the distance you have, and determine at which aperture you will have enough DOF to include all of the subject that you want to have sharp. Next, set the aperture accordingly, focus on the right spot, and take the shot. If done correctly, there will be enough DOF in front and behind your point of focus to get the entire subject in focus.
when you change the stop, you need more time for light, it's simple compensation for a still subject. shutter speed has nothing to do with DOF. Never said it did. You can get just as sharp an image. It's patience, not arithmetic.
There's no maths involved if you use a dof calculator, it's all done for you!
I'm not arguing with you, and I saw the OP, by keeping the widest aperture to get that same bokeh he could pull the camera back from the subject which will proportionally increase the dof to get the figure in focus. Then you can crop. That limitation is the lens really. And the very lowest iso would ensure a clean snap. Motion blur is completely irrelevant, still subject + tripod. so what you are advising isn't wrong, like i said not arguing with you, just simplifying it because this is a beginner's thread and the technical stuff is great and all but isn't exactly necessary to practice what he's trying to get at first. I've found it more confusing to more beginners than not.
On a side note, I wasn't entirely impressed with the af on those entry level dslrs. I would shoot all mf too since there's no moving subject.
I'll shut up now, it's been overthought.
hydroshock said:thats too much math, if you're on a tripod anyway, move it up to 5.6 or 8 even, make more distance from your subject to the background and use a longer shutter speed. if you spend all your time fretting about numbers you'll stop seeing your subject the way you want to see it, imo.