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Old 07-07-2015, 10:36   #1 (permalink)
grease spot
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Join Date: Jan 2011
Location: Westmalle, Belgium
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Tip for the (landscape) photographer

Kit for the lansdscape photographer:
Camera of choice
Suitable lens of choice
Sturdy Tripod of choice
Set of filters, notably a Neutral Density filter, for waterfalls and a Circular (Linear if not auto focussing) Polarizing filter.
Suitable elastic bands
Suitable tie-wraps (cable-ties).

This subject has been discussed before ... how do you separate two screw filters that have decided to enjoy each other's company for ever after?

Carefully put some graphite from a pencil on the threads before connecting - minor chance of dust on the filter / lens.

Place the filter face down on a piece of (chamois) leather and carfeully press down on the other filter to twist them apart - the polarising filter just spins around and refuses to divorce its new found mate. With two neutral density filters bound together the serrated edge of the filter that is supposed to provide some tactile grip, instead grinds a beautiful hole in your chamois.

In the winter your hands are dry so you wash them to add a bit of damp to the finger tips for extra grip. After hours wrestling with the filters your hands are no longer dry but profusely pouring sweat out of the tiny pores in your paws. You've no longer got grip, no matter how hard you grip the filters. Unfortunately all you are likely to be doing is slightly deforming the filter ring(s) so that they remain firmly bound together.

By now you've guessed that the elastic bands and tie-wraps work together to separate this loving couple. The rubber of the elastic band provides the grip around the filter and the tie wrap mounted over the rubber band provides an even pressure around the filter to stop the filter ring deforming. More than likely this will persuade the two to separate quite amicably, and you will wonder why you struggled so hard.

The tie wraps are not necessary in most circumstances but just a gentle presure of the fingers spread evenly on the rubber bands around each filter.

A thin piece of string wound round the filters like a tourniquet instead of the tie wraps also works but is difficult to control.

(tried and delibrately tested several times on some stubborn rotating filter pairs defore I committed this to a tip).

Hope it helps.
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