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Re: [OM] Real world [was More on DOF and focal length (by Ctein)]

Subject: Re: [OM] Real world [was More on DOF and focal length (by Ctein)]
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Thu, 02 Jul 2009 21:16:15 -0400
I forgot to mention, that's a 7MP image on a full frame sensor.  f/16 on 
a 4/3 sensor gets you only 2MP.  Small sensor cameras require good 
lenses that can perform well at larger apertures.

Chuck Norcutt

Chuck Norcutt wrote:
> As I said earlier, if you can display or print without ressing-up the 
> image then you didn't need the resolution that you sacrificed to f/16 by 
> not shooting at f/11.  If you shoot at f/16 you've still got a 7MP 
> image.  Better than an E1 and almost as good as any digital camera up 
> until the last couple of years.  Furthermore, to make it painfully 
> evident that you'd lost the resolution you'd probably have to shoot one 
> of AG's USAF line charts.  :-)
> 
> Dr. Focus
> 
> usher99@xxxxxxx wrote:
>> I'll have to don my "I agree with Moose" t-shirt once again.  Went 
>> trough a similiar process.  When I thought the dof was borderline at 
>> F11 and was fortunate enough to bracket the aperture, the increased dof 
>> for the shots at F16 alwyas trumped the mild diffraction softening.
>> Perhaps there are situtrations where that is not true but if you need 
>> the dof , the smaller aperture seems to trump the diffraction by quite 
>> a bit.  Perhaps Dr. focus et al. could explain why.
>>
>> A more careful to bracket, Mike
>>
>>
>> For me, for this subject and many of the thinks I
>> photograph, DOF is more important.
>>
>> F16 and be there Moose
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