OPTOLONG IR-PASS FILTER 685nm Extension This kit for the Geoptik

This kit for the Geoptik Nadirus 12" & 16" Dobsonians includes a 1

Note: Due to the many different dovetail bars on the market and different manufacturers' tolerances

This adapter allows you to connect the QHY PoleMaster electronic polar alignment scope to the Takahashi EM400 mount

and enhance image contrast

OPTOLONG IR-PASS FILTER 685nm Extension This kit for the GeoptikThe Optolong IR pass filter is designed to boost the contrast in planetary imaging as the infrared radiation is less affected by the atmospheric turbulence (seeing). All planets will appear sharper with the highest possible contrast. Mercury will reveal its faint details only with an IR pass filter. This filter is particularly useful for daytime observations as it darkens the background of the daylight. Venus can show details on its clouds, especially