Re: Official: Canon 5DS, 5DS R and 11-24mm lens released!
snapsy wrote: Ziffl3 wrote:
The sample image of the model in white .... am I the only one who is questioning the f8?
Her face is in focus but the earring on her right ear is out of focus.
and most of the top part of the dress (her left)is out of focus and nearly blown out.
Considering the cropping includes space around her face ... this feels more like f4.
My expectation would be able to see just about everything in focus.
The model photograph was a head and shoulders portrait @ 170mm so DOF is thin. Additionally, as pixel density increases the viewing magnification at 1:1 increases along with it, which reduces the effective DOF as DOF is a perceptual measurement based on viewing distance and magnification. This is one of the conundrums of higher MP imaging esp for DOF-limited shooting scenarios where you have to stop down; more MP means a smaller CoC which means a smaller aperture but higher MP also means diffraction effects become more noticeable at 1:1 at smaller apertures so you have a limited range of apertures to work with to extract the maximum acuity from the sensor.
Snapsy ... I know this has been discussed.
Since I am a visual person... your explanation with the image tied it all together.
Really appreciate the assist.
I need to really see if this will fit into my work flow for wedding coverage.
-Mark
Feb 06, 2015 at 11:53 AM
Previous versions of Ziffl3's message #12843614 « Official: Canon 5DS, 5DS R and 11-24mm lens announced! »
