[rollei_list] Re: Does a Rolleiwide need a lens shade?
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Mon, 29 Oct 2012 08:01:04 -0700
----- Original Message -----
From: "John Wild" <JWild@xxxxxxxxxxxxxxxxxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Monday, October 29, 2012 5:34 AM
Subject: [rollei_list] Re: Does a Rolleiwide need a lens
shade?
I have yet to process 2 rolls of B&W taken last week with my
'wide with lens
hood, some into the sun. I will let you know if there is any
flare...
John
Lens shades do nothing about light from sources in the
image or that can hit the lens directly. They act to
vignette the field of the lens for exta-image light. Some
flare can come from reflections from the internal structure
of the lens mount. A properly designed mount should have
little reflection but many do. There is also some reflection
from the interior of the camera. Rollei began to add light
baffles sometime about the mid-1950s. While these reduce the
internal flare quite a lot a lens shade is still desirable.
--
Richard Knoppow
Los Angeles
WB6KBL
dickburk@xxxxxxxxxxxxx
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