One of the reason i sold my D3100 because i need quick access. Everytime must go to menu , really waste time. I like more features and more buttons. D300s above look good , can switch AF-A,AF-C,AF-S faster , and area mode dynamic , single point. That y play dota , i like to use skillful heroes
QUOTE(Andy214 @ Apr 12 2011, 03:52 PM)
I guess you're shooting close-up with 35mm f/1.8 @ f/1.8?
If yes, the DOF is shallow, and if you move even a little the focus plane will change; To test this, you can try use AF-C, then focus on one area and hold it. If the lens re-focus, it means you moved a little and the focus plane changed. In this situation, using AF-C you might get less chance of OOF; BUt with AF-C, you can't focus and re-compose.
IF you're using AF-S and shooting up-close @ f/1.8, and you're using focus and re-compose, then your problem is obvious.
Very good explanation Andy
QUOTE(Andy214 @ Apr 12 2011, 01:38 PM)
Hehe, actually I'm referring to the article writer when I see the title. The focus re-compose technique is not something new, plus it's widely use, especially when there is only 1 focus point, or for point and shoot, or handphone camera. For DSLR, it more towards how the user use the camera; ESPECIALLY, when they start to explore big aperture lens, go nuts with wide open, and not understanding DOF, focus plane, etc. ended up blaming everything else but themselves.

Right.
QUOTE(Agito666 @ Apr 12 2011, 01:49 PM)
next target might be full frame
but still loooonnnnngggg wayyyyy toooooo gooooo

Added on April 12, 2011, 1:49 pmi guess state your budget and let those pros suggestion better... maybe some begginer body perform better than that.
i ROFL when i see your post
QUOTE(Andy214 @ Apr 12 2011, 04:45 PM)
If you want to focus and re-compose and you're shooting close up, then try using smaller aperture, you can stop down the aperture and try. Also make sure you hold the camera steady because close up shot, your slight movement (body/hand/camera) will affect the focus plane; You might not even know you did move, because when shooting close up, usually we take our time to compose the picture and shoot.
If you use Tripod, then the movement problem is very much reduced.
For your case, if you stop down too much, then it will affect the EFFECT you want to achieve, like you want to blur out certain parts; So you need to play around with the aperture to get the EFFECT you want, and still capable of letting you focus and re-compose. When you focus and recompose, try to maintain "within" the focus plane.
When you stop down, you need to compensate with slower shutter speed or increase ISO (if it's lowlight); In this case, shooting handheld, you have limited shutter speed, you have to revert to ISO; unless you're using tripod.
WHen you increase ISO, it will affect your overall image quality and sharpness; If you really want to maximize the performance, get good lighting or use flash. If you friend have flash gun, try borrow and bounce the flash off the wall, and experience the improvement on the overall image result you will be getting.
Another

+1.