New and Improved: LPS-V4

The new and improved IDAS LPS series filters have been tweaked for even better performance with the introduction of the LPS-V4 filter.  Below is a plot of the measured response curve for a batch of production units.

Features include:

• Near IR is blocked completely, eliminating the need for an additional filter to block IR.
• Narrower H-alpha bandpass.  In conjunction with a Kenko R1 filter, this can be used as a 19nm bandpass H-alpha filter.
• Retains the excellent color balance of the LPS-V3 filter when one-shot color cameras are used.
• Easy creation of H-alpha enhanced color images*

* Combine a color shot with the LPS-V4 filter, with one taken with a Kenko R1 filter added to the stack (e.g. use an  LPS-V4-37 in a Canon body for  color nebula images and add a Kenko R1 filter to your scope or telephoto lens for enhanced H-alpha images to be stacked together).

Now available in these sizes: M28.6, M37 (body-mounted for Canon cameras), M48, M52