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Re: [OM] E-M5 sensor reflections?

Subject: Re: [OM] E-M5 sensor reflections?
From: Moose <olymoose@xxxxxxxxx>
Date: Thu, 17 Apr 2014 20:55:56 -0700
On 4/17/2014 6:09 AM, Chuck Norcutt wrote:
> ...  It was not common
> but several shots show what I think is a light spot caused by reflection
> from the sensor.  See the left side of the back of my easy-chair in this
> shot <http://www.chucknorcutt.com/2712/familyroom1.htm>  I think it's a
> reflection from the fluorescent fixture in the background.  This is not
> very visible in the the actual tiny images used on-line for advertising
> the house (same size as the thumbnails) but I still found it unexpected
> and disturbing.

I'm thinking it's good old lens flare. You've got very bright lights left, 
barely out of frame, center and right, in and 
barely out of frame. The effect is small, and the processing has magnified it.

I'm trying to imagine the geometry of sensor reflection that ends up so far off 
to the side, and having trouble. 
Especially with a square source ending up as round reflections. I kinda think 
I'm seeing three roundish, partially 
overlapping blobs.

The only reflections I've seen documented were central.

> I was using the mZuiko 12-50 at 12mm throughout.  I suppose it could be
> this particular lens but I haven't had a chance to test any other.
> Anyhow I've never seen it before but have never pushed shadows this
> hard.  Anyone else seen this sort of effect from the E-M5?

Never that I've noticed. Not that I'd expect it to be especially prone, nor 
immune. Every sensor stack I've peered at 
has had a highly reflective surface.

Flare Tuck Moose

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