Baader Clear Focusing Filter - 50mm Square Unmounted - FC-SQ50

Use of special photography filters, especially narrowband filters, often results in dim images which can be difficult to focus. Baader Planetarium Clear Filters can be used first to clearly focus the image. Since they are parfocal with other Baader filters, they can then be removed and replaced by other imaging filters, without affecting focus.

The high optical quality of the Baader Planetarium Clear Filters guarantees no loss in sharpness or contrast. Each substrate is fine-optically polished plane parallel to deliver a smooth and accurate 1/4 wavefront over the entire surface. This special custom polishing operation sets Baader filters apart from the standard commercially precision polished filter substrates used by most other filter manufacturers.

• Can be used first to clearly focus the image

   

   

• Parfocal with other Baader filters

   

   

• They can then be removed and replaced by other imaging filters, without affecting focus

   

   

• Fine-optically polished plane parallel to deliver a smooth and accurate 1/4 wavefront over the entire surface

   

   

• Special custom polishing operation sets Baader filters apart

Filter Type: Clear Focusing

Format: Square Unmounted

Size: 50mm

Threaded: Yes