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M100 to M50? Worth upgrade?

Started Jan 3, 2022 | Discussions thread
JustUs7 Senior Member • Posts: 4,327
Re: M100 to M50? Worth upgrade?
1

nnowak wrote:

DocetLector wrote:

I don`t think it is front focussed, the platter and the eyes are more or less at the same distance, just look at the eyelashes, I think they are in focus. That`s where I put the focus point.

And that is the problem

I just wanted to show that a fast lens is not always the only solution, especially with 2 or more objects not at the same distance there might not be enough DOF .

Half of your depth of field is in front of the nearest child and is wasted.

Check a depth of field calculator. At near distances, it’s generally between 30-70 or 40-60 weighted toward the front of the image. Not 50-50.

Call this 10 ft with a 22 mm at f/4 and 27% of the depth of field is in front of the plane of focus and 73% is behind. Just random numbers for an example.

Looking at it again, assuming 6 ft distant at f/4 using a 32mm and you’ve only got about a foot and a half to work with total depth of field anyway.  Better off at f/8 with the speed light.  Gives you closer to 3.5 feet.  Roughly.

 JustUs7's gear list:JustUs7's gear list
Canon EOS 1000D Canon EOS Rebel SL1 Canon EOS RP Canon EOS M6 II Canon EF 75-300mm f/4.0-5.6 III +10 more
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