Reply to thread

Message

<blockquote data-quote="Blade Canyon" data-source="post: 558064" data-attributes="member: 15302">At 1.8 or 2 f-stop your depth of field will be very small.&nbsp; If you are shooting AF-S, it locks focus at the moment you half-press the shutter button (or the back button focus button, if you do that).In my experience doing this, I discovered that I would move a little right before firing the shot.&nbsp; In other words, shooting handheld (no tripod), I was locking focus but then rocking forward or back just a tad when firing the actual shot.&nbsp; That moved the focus point.&nbsp; With such a narrow depth of field, the results will be evident.At the distance you are describing, there is little to be gained by shooting so wide open, unless you are in very low light.&nbsp; Bump that aperture to f 5.6 and see what happens, or change to AF-C so the camera keeps adjusting focus right to the moment you fire.Also, you might check the fine-tuning of your lens.&nbsp; There are many threads on this, but basically there is a menu setting that lets you calibrate each lens independently for your body.&nbsp; The most common way is to set up a ruler at an angle, focus on a precise point (say the 6 inch mark), then see what part of the ruler is in best focus.&nbsp; You then change the focus calibration in the menu so that the camera learns to move the focus forward or backward so that the spot you want is the spot that's in focus.</blockquote>

[QUOTE="Blade Canyon, post: 558064, member: 15302"] At 1.8 or 2 f-stop your depth of field will be very small. If you are shooting AF-S, it locks focus at the moment you half-press the shutter button (or the back button focus button, if you do that). In my experience doing this, I discovered that I would move a little right before firing the shot. In other words, shooting handheld (no tripod), I was locking focus but then rocking forward or back just a tad when firing the actual shot. That moved the focus point. With such a narrow depth of field, the results will be evident. At the distance you are describing, there is little to be gained by shooting so wide open, unless you are in very low light. Bump that aperture to f 5.6 and see what happens, or change to AF-C so the camera keeps adjusting focus right to the moment you fire. Also, you might check the fine-tuning of your lens. There are many threads on this, but basically there is a menu setting that lets you calibrate each lens independently for your body. The most common way is to set up a ruler at an angle, focus on a precise point (say the 6 inch mark), then see what part of the ruler is in best focus. You then change the focus calibration in the menu so that the camera learns to move the focus forward or backward so that the spot you want is the spot that's in focus. [/QUOTE]

Verification