I agree with this, but it also means that I can never use a hotshoe flash.
Oh, sure you can! Don't be silly. You need to get that flash off the camera anyway, so put it closer to your subject, and use a modifier to diffuse the light. Of course, you will need a way to trigger the speedlight, but there are ways to do that.
Would someone help me to summarize the improvements I should make to my portrait photography to avoid this issue in the future?
- Turn off VR when using flash
- Don't use AF55 point group for portraits.
- Use a tripod
- Change to AF-S and single point. Should I start with that point being the area closest to me, such as her nose?
I think it was turn off VR when your camera is mounted on a tripod, which it should be anyway, but sure, turn it off when using flash, also.
#2 and #4 are the same issue. No, not her nose; her eyes, or one eye anyway, usually the closest, but right on her eye is where you want the focus area. Considering that the current fad is to shoot with a very shallow DOF, you should at least try to get the eyes in focus, even if the nose is not. Actually, I much prefer getting the entire head in focus, including chin, forehead, ears, hair, neck, and while I'm at it, her shoulders, bodice, arms, necklace, and anything that is part of the portrait. I figure out the DOF, trying to get at least two feet to be safe, so that's one foot behind and one foot in front of the focal plane. I want all the person to be in acceptable focus.
#3 I always use a tripod when trying to make a descent portrait. I then have a choice of how to release the shutter, and I usually use a cable release, although I've used other methods depending on my exact needs.