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[OM] Oly DoF Tricks

Subject: [OM] Oly DoF Tricks
From: Moose <olymoose@xxxxxxxxx>
Date: Mon, 28 Dec 2015 17:10:20 -0800
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>

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>

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 if the Hokey Pokey *IS* what it's all about?
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