Glass Filters for HD: Combination Filters

These High Definition glass filters are a combination of a neutral density or polariser filter together with a CTC filter, and are available in a number of different combinations. The effect created can also be made by stacking the individual filters together, but as they are commonly used in combination they are available to purchase together as one filter.

The most common combination glass filters specifically for HD are listed below, although other combinations may be ordered on request.

For technical information about CTC filters, please see this guide to exposure increases required for each density.