KellyNunna wrote:
Thank you very much, autofocus, for taking the time for this explanation.
It's my pleasure to help Kelly...sharing knowledge is a good thing, and we're never too old, or too smart to learn from each other..it is ongoing
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Let me make sure I understand this...I focus on the center eye with one of the nine focal points, then select that particular point before I press the shutter. Do you believe this is more successful than focus with the center point and recompose for most of the time? Of course, I will practice both of these methods...
On my good old Canon 20D, the back multifunction main wheel is used to dial onto, and select one of the nine points. I'm not familiar with how it would be done with the T4i, but I'm sure it's in the book on how to set this up on your camera. Once you do that, and while you are composing the shot in your viewfinder, simply move to one of those points and use that now active focus point and place it onto your subject's eye. One more thing that'll help is to try this: once you've place that active focus point on your key subject's eye is to continue pulsing the shutter button half down until you get the shot you want by following up with the full press of the shutter button. Understanding that subjects move, and you are still waiting to grab the best expressions on your subject's face(s) this little tip will give you some assurance that when you finally see the shot you want it'll be well focused...this is how we do it. We found that using the center point/re-compose method gave us too many missed focus shots, especially when shooting with wide apertures which doesn't give you a lot of room for errors. Living things move, including you the shooter, and even a slight change in the focus distance while you go through the motions of re-composing could yield some less than perfect results. Now I'm not saying that there won't be those times that you will be using the center point / recompose method...static shots like landscapes or for shooting things that don't move, that method works perfectly fine.
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My epiphany is the DOF. It certainly makes sense that a smaller fstop will give me a greater DOF, yet...that will reduce my shutter speed. More chance of camera shake...am I able to achieve a sharper image handheld...or is it time for a tripod.
Kelly, working with the exposure triangle is all about trade offs and compromises, and whether you compromise by using high ISO, or slower shutter speeds, or wider apertures really depends on what you are shooting, or do you have an IS lens, or will there be the potential of subject movement or not, or what your goal is in your end photo. And remember, there's always use of tools like flash and reflectors to help ameliorate those little problems...certainly, lots of things to consider. We own tripods, but in our work we rarely use them..just too difficult when you're chasing a 5 year old around..we're almost always shooting hand held. That's just us, and using a tripod in some circumstances is a must.
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And for candids? Focal point on eye and shoot?
yes, whenever possible unless a blurry look is what you are going for, or when it may be difficult in panning shots
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Or...is the answer more light sources to keep my ISO down.
more light is always the answer, remember, photography is all about light, and how you control it, how you read it, how you shape or modify it, and simply, how you can use it to accomplish the look you want. When needed, we use off camera radio controlled speedlights, reflectors, and strobes in our work. If you are serious about this new hobby I would recommend you start by buying a reflector, and the larger the better. They are inexpensive, and not only will they bounce available light back on your subject(s) but they also can be used as a scrim to block light, or filter bright sunlight through them.
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What is the maximum ISO I can comfortably use? My t4i just seems quite noisy above 400...however, I don't believe I'll be enlarging past 8x10 so that may not be a pertinent factor.
This too depends how you expose with the light that is available to you. Noise is always more prevalent in dark, and under exposed areas. I would say it's always best to use the lowest setting you can possibly get away with...there are time you don't have that luxury though, and high(er) ISO is the only way you can get the shot. That said, there is no set rule of how high you have to go. I don't know how much post processing you do, but there are programs that will help remove some of the noise.
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And...(sorry for all of the ??) do you prefer a zoom lens or a fixed?
We shoot with both, but the 50mm, 85mm and 35mm are probably what we use mostly in our portrait work. when shooting an event, however, you usually need ability to change focal lengths fast, and on the fly, and zooms is what we will use.