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Re: [OM] Oly DoF Tricks

Subject: Re: [OM] Oly DoF Tricks
From: bj@xxxxxxxxxxxxxxx
Date: Wed, 30 Dec 2015 01:47:52 +1300
 

Moose wrote

It seems to me that Oly is the leading innovator in the
conventional camera business lately.

1. Five way IBIS (and its
improvement in the E-M5 II)
2. Super high resolution AND improved color
AND no moire from a 16 MP sensor
3. Composite Mode for low light.
(Little understood, but a BIG thing for long exposure shooting.)
4.
Automated Focus bracket/stacking.

The sorry story of my first Oly Tough
series camera seems to have ended with it running away. Like a penny
with bad juju 
(IQ), I suppose it may come back to haunt me ...

The
TG-4 is another story. Today's chapter is about it's mini
implementations of the Auto Focus Stacking trick recently 
added to the
E-M1 and Focus Bracketing added to both it and the E-M5 II in firmware
updates.

It does both Focus Stacking and Focus Bracketing, FS and FB
here. They are limited, only being available in Microscope 
Mode (a
super macro setting), which focuses in a range of 1 cm to 1 ft. FS is
further limited to 3200x2400, ~8 MP and 
JPEG. FS is full size, 15 MP,
but still JPEG only.

Curious about this stuff, I took a couple of
casual FS shots of a micro landscape in a pot outside our front door.
Hand 
held, AF, AE, AISO, in other words, something one could shoot
anywhere, without planning or special effort.

Simple comparison, no
adjustment of any kind by me other than downsizing for the web.

<http://www.moosemystic.net/Gallery/tech/TG-4_Focus/PC280034.htm
[1]>

This one came with overcooked highlights. I pulled them down,
pretty good retention in the JPEG, raised shadows just a 
tiny bit, so
it wasn't just a black hole, and tried out post downsizing deconvolution
sharpening.

<http://www.moosemystic.net/Gallery/tech/TG-4_Focus/PC280036.htm
[2]>

I think that's pretty amazing in a tiny, cheap, consumer
camera!

When Carol saw the second one, she loved what it did in front,
but would like the back to remain soft. That brings me to 
Focus
Bracketing, where one may pick and choose that sort of thing. But that
must wait for more playing and a later post.

Depth of
Moose
///////////////////////////
What a revelation.
In one hit Olympus
seem to have rendered redundant my prized set of several very good macro
lenses.
Well, maybe not quite, but it's amazing.
Unfair~~!

Brian
Swale

 

Links:
------
[1]
http://www.moosemystic.net/Gallery/tech/TG-4_Focus/PC280034.htm
[2]
http://www.moosemystic.net/Gallery/tech/TG-4_Focus/PC280036.htm
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