Re: What, no ideas?/good response

[Don Roberts <droberts@xxxxxxxxxxxxx>]

Willem-Jan Markerink wrote:

> An additional note, not neccessarely related: if your BTFR filter is
> a very thin one, you might create quite large forces on it by zooming
> in and out. Not sure how air-tight the mirror-box & shutter itself
> is, but on some cameras you can feel a draft along the eyepiece. The
> film itself is hardly affected since the film rails leave gaps left
> and right....but the BTFR filter is mounted flush, closing those
> gaps.

Willem, the BTFR filter is just a Kodak gel cut into a strip.  I hope it
doesn't flex too much.  My first try at this resulted in a ruined
shutter in a Nikon FA.  Of course that one was behind the mirror and
didn't have enough lip to hold it in place.  Thanks for your input.

Don Roberts 
Bittersweet Productions
Iowa City, IA

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