Foques wrote: »
I am not sure why you're disagreeing with Michael on this one. While in general, the logic you have provided is right, in this situation it is pretty obvious that 7.1 was a glaring error.
The environment OP was did not require that kind of aperture. the shutter speed needed to be increased, thus opening the aperture would be required. I fully agree with Michael int hat 7.1 was a completely unnecessary
Sam wrote: »
This was outdoors with gobs of light.
Sam wrote: »
Let me back up a little bit here. You are focusing in on the f-stop and stating that the error was using 7.1.
I must disagree. The object is to use a shutter speed that is fast enough for the subject / situation / movement. The second part of this is to use an aperture that will provide a DOF sufficient to obtain a sharp image from front to rear of the subject. (could be more or less depending on artistic intent) Lens focal length and distance to the subject will effect the DOF portion of this puzzle. ISO is one component to achieve the above.
There is no magic camera, aperture, shutter speed, ISO, lens, or subject distance.
One needs to understand these elements and choose each setting accordingly for the situation at hand.
Personally in these types of fast moving situations I will choose the setting with the widest margins possible. IE smaller apertures, faster shutter speeds, higher ISO ( as needed).