[rollei_list] Re: Lens Flare
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Fri, 18 Apr 2008 14:25:51 -0700
----- Original Message -----
From: "Thor Legvold" <tlegvold@xxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Friday, April 18, 2008 11:55 AM
Subject: [rollei_list] Re: Lens Flare
Could it be a combination of several things?
F.x. the circle is perhaps the chrome lens surround and
the lines are a roller that is reflected back from one of
the elements (thus making a mirror image of itself, i.e.
a cross)?
Just thinking out loud.
Thor
It _could_ be more than one thing, in fact, I think it
likely is but I think they only way to find out what is to
duplicate the effect using the ground glass than then see if
it can be traced by examining the aerial image.
I doubt very much that its a roller reflection. Its in the
wrong place and the light causing it is in the wrong place.
It looks like a highly aberrated internal reflection from
the lens. Zeiss seems to have been careful of internal
reflections but maybe missed this one. I would check my 2.8E
but it has a Xenotar rather than a Planar and I doubt if the
internal reflections of the two are the same.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
---
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