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| *A consequence of filtering light through
two sheets of polarizing glass is that when the filter is set to its
maximum density, a dark cross will appear on your images – as seen
below. For this reason, we do not recommend using the filter at its maximum
setting. The point at which this cross will appear is also directly related
to the focal length being used. On wide angle lenses, especially when
used on full-frame cameras, this cross will begin to appear at densities
of less than 9 stops. The point at which the cross begins to be observed
depends on the exact camera & lens combination, but below is a guide
of the recommended range which should be sought at varying focal lengths.
Used within these ranges, you should achieve even exposure across the
image: 12mm: 2 stop (ND4) – 3 stop (ND8) operating range. 15mm: 2 stop (ND4) – 4 stop (ND16) operating range. 18mm: 2 stop (ND4) – 5 stop (ND32) operating range. 24mm: 2 stop (ND4) – 6 stop (ND64) operating range. 35mm: 2 stop (ND4) – 7 stop (ND125) operating range. 40mm: 2 stop (ND4) – 7.5 stop (ND175) operating range. 50mm: 2 stop (ND4) – 8 stop (ND250) operating range 70mm: 2 stop (ND4) – 8.5 stop (ND350) operating range. 100mm: 2 stop (ND4) – 9 stop (ND500) operating range |
All prices include UK VAT
E-mail: sales@morco.uk.com
Morco Limited
20 Oak Tree Business Park, Oakwood Road, Mansfield, Nottinghamshire, NG18 3HQ England
Tel: +44 (0) 1623 422828
Fax: +44 (0) 1623 422818
Amex / MasterCard / Visa / Maestro / Delta cards welcome.
Offers and prices, correct
18 October, 2011
, are subject to availability and change. E&OE.
Goods will not be supplied where incorrect card billing address has been
supplied.
Items over 1.2m in length are subject to additional carriage charges outside
of mainland UK.
Due to the content of some chemicals they can not be shipped outside the mainland
UK, please contact us for details.
For goods supplied outside the EU, the customer is responsible for any local
charges, inc. tax, duty, clearance etc.
