The Altair M48 tilt adjuster is designed to give the perfect image field by making the CCD or DSLR camera sensor completely orthogonal to the telescope's optical axis.

For solar imaging with the Daystar Quark or just about any Hydrogen Alpha Etalon filter, the M48 Tilt Adjuster is pretty much a mandatory to solve Newton's Rings or Banding in the image. For visual use it can be used to tune-in and hold the "sweet spot" to get the best preformance from your Quark or any Solar telescope with an Ha Etalon filter.

For deepsky imaging the tilt adjuster is used to compensate for inevitable tilt changes in the "imaging train" when accessories like a filter wheel, focuser, and so-on are used. This gives a more even pattern of star shapes in the image. Especially important when using field flatteners or coma correctors to fine tune the image.

The M48 Tilt adjuster is precision machined in our workshop on a CNC lathe with M48x0.75 male and female threads on each side. (Also known as "astro-filter" thread). It therefore can be used with most extension tubes and adapters. 3 tilt adjustment screws are arranged in a 120 degree opposing pattern. They can be locked in position after adjustment using the corresponding locking screws.

With the camera tilt adjuster, adjustment to fractions of a millimeter are possible for a perfectly flat field with optimal off-axis image sharpness. No more hunting the "sweet spot" for your particular setup, just leave it on! The camera tilt adjuster is ideal for use with larger CCD chips or DSLRs as well as field flatteners and reducers in any fast optical system, where deviation from the focal plane edge is more critical.

The M48 tilt adjuster adds 10-11mm to the light path, depending on the amount of tilt adjustment. Being M48 format on both sides, the camera tilt adjuster is fully compatible with the Altair range of M48 spacers and adapters, and it can be connected directly with most Altair flatteners and DSLR adapters using the wider M48 format. Of course you can convert it to M42 on the camera side by using the M48 female to M42 male step-down adapter.

Scope of Delivery:

• Tilt-Adapter