Rethinking 4/3 Depth Of Field

Started Apr 11, 2013 | Discussions thread
zxaar
Veteran MemberPosts: 3,279
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Re: I can already predict a response.
In reply to danijel973, Apr 11, 2013

danijel973 wrote:

exdeejjjaaaa wrote:

danijel973 wrote:

RoelHendrickx wrote:

I can already predict a response by some people likely to chime in here.

They will say that having shallow DOF at one's disposal is never a disadvantage, because if deeper DOF is desired, the aperture can always be stopped down a bit (while it cannot be "stopped up" to make the DOF more shallow than the lens wide-open on the sensor will allow).

Except when you stop down to have similar DoF you're no longer at f/2.8, you're at f/5.6, and then you push ISO up two stops to compensate for speed loss and suddenly you wonder where your "two stop advantage at high ISO" went.

except that in many cases you do not really need exactly the same DOF as you are forced in w/ m43/43 and then you do not need to push ISO 2 stops... so what you are saying is an artificial condition.

What I'm saying is that sometimes 43 might be exactly what you need - f/1.4 aperture to let more light in and still to have 2 stops more DoF than you would have with 35mm. For situations where you need to work in low light and not have hair-thin DoF, this is exactly what you want.

Thats is why it is better to sneak in a pentax Q with F1.9 lens rather than m43.  When you get into this hypothetical situation take the damn thing out.

Anyway, I have't use flash for last say 10 years or so and never once regretted not getting what I wanted as far as DOF is concerned and I do not use m43.  How much DOF is adequate is subjective as long as i am happy what i am getting out of my camera , i have enough dof.

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::> I make spelling mistakes. May Dog forgive me for this.

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