Re: [OM] An image and some news

[Chuck Norcutt]

Since I am the diffraction complainer I must admit that I often now 
follow the Moose's advice and shoot at f/11 although f/9 used to be my 
limit.  I also like the 12-50mm lens and it's macro mode.
But... the Moose must have been in need of some sleep at 1:17am when he 
suggested that f/11 vs f/8 would not only have given you greater DoF but 
also allow a faster shutter speed.  Or maybe the E-M5 Mk II has some 
nifty tricks up its sleeve.
BTW, my DoF calculator set at a modest CoC for 4/3 (.0167 or 60 
lines/mm) says the 12-50 in macro mode (fixed 43mm) and focused at 300mm 
(a bit shy of 1 foot) has DoF range (rounded to the nearest mm)
@ f/8  - 295-306 mm
@ f/11 - 293-308 mm

Chuck Norcutt


On 5/11/2016 1:17 AM, Moose wrote:
> > It was taken with the OMD5 and 12-50mm lens. For reasons
> > mainly to do with loss of electricity in the camera ( now resolved) I
> > had not used it much and only this week have I started carting it around
> > with me as a conscious decision.
> The 12-50 is one of my most used lenses. A good lens in general, and the
> Macro mode avoids many lens changes.
>
> > I'm still
> > finding out how the camera-lens combo works; for example just how much
> > DOF can I wring out of f/8;
> I would have shot it at f11, or both. In spite of the hand wringing
> about diffraction softening, f11 very often works well with deep
> subjects on 4/3 size sensors. That would give slightly better DoF AND
> allow a faster shutter speed. Most likely a slightly sharper result.
--
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