Glass Filter 1mm Too Wide

[larry_menzin]

I bought 3 used Tiffen 4"x5.65" glass grads for landscape

photography. I thought I'd try glass grads vs Lee resin grads. It

turns out that while Lee resin grads fit my holder (Heliopan), the

Tiffen glass grads are about 1mm too wide. Is there someone like a

glassmaker who could shave 0.5mm from each side of the filter, or

should I put these grads on the big auction site?

[eric friedemann]

Since its only 1mm, perhaps you could buy a carbide sandpaper and sand the edges yourself.

[q.g._de_bakker]

If you think that making it 1 mm less wide requires taking 0.5 mm off from each side, perhaps you'd better sell it on... ;-)

[sam_crater]

<i>What?</i>

[q.g._de_bakker]

Sam,<br><br>If your <i>What?</i> is in reply to what i wrote, i'll explain:<br>You do not mess with two sides of the thing if doing it once, to one side, just a little bit more, already does the trick. Each extra side you tackle is an extra opportunity for doing damage.<br>Obvious really, isn't it? ;-)

[sam_crater]

Ahh! I was thinking about the math, not the engineering.