Sigma DP1/DP2/DP3 Merrill flare comparison

Started May 26, 2013 | Discussions thread
victorgv
Contributing MemberPosts: 755Gear list
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Re: Thanks Robert,
In reply to Roland Karlsson, May 28, 2013

Roland Karlsson wrote:

mark-vdi wrote:

Hi Roland, at a guess, if it is caused by a double internal reflection first off the micro-lens covering the sensors and then back off the surface of the last lens element, then, if the last element has a convex surface, it will magnify and distribute the spots with the spots furthest from the centre becoming more distorted since this reflection strike an oblique surface . . .

Yeah, maybe ...

But how do you explain that they always are red?

The only bright red reflection in the DP camera comes from the IR filter.

The IR filter is probably flat.

microlenses > back of the lens > top layer of IR (magenta colored)>back of lense > back to the sensor. Probably...

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