See also: https://shop.stcoptics.com/product/clip_pentax/
On Wed, Oct 7, 2020 at 2:16 AM Larry Colen <l...@red4est.com> wrote: > My neighbor just sent me this link to filters to put on your sensor for > doing astrophotography > > > https://www.highpointscientific.com/telescope-accessories/astro-photography/filters/filters_shape:pentax_clip/manufacturer:astronomik_filters > > > -- > Larry Colen > l...@red4est.com > > > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- “The Earth is Art, The Photographer is only a Witness ” ― Yann Arthus-Bertrand, Earth from Above -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.