A flat field mask creates a white area with a defined brightness. Simply place the mask on your telescope optics and photograph the white area. This so-called flat field image allows you to determine the exact brightness distribution of your optical system and correct the brightness gradient of your astrophotographs during image processing.
The mask should be used under the same conditions and with the same optics as the actual images. The mask is therefore designed for mobile use and can be powered accordingly.
Thanks to LED technology, it is possible to create a truly white surface without any colours. Since the lighting does not flicker, short exposure times are also possible.
This swivelling LED flat field mask ensures uniform illumination of telescopes with a lens diameter of up to 120 millimetres and guarantees precise flat fields for astrophotography and photometric applications. The hinged cover can be positioned at an angle between 0° and 270°, allowing it to serve both as a Flatfield panel and as a protective cover that shields the telescope optics from dust and moisture. For this purpose, the FlatMaster is equipped with a special silicone flange for a light- and dust-tight seal.
The FlatMaster can continuously adjust the brightness of your panel. Save the brightness for each filter and instantly recall the desired value. The Flatmaster Neo can achieve very high brightness levels, allowing it to easily support short exposure times (2–3 seconds at f/7) with 3 nm narrowband filters.
A single USB-C cable supplies the FlatMaster with power and enables its control. A manual button allows you to open and close the cover.
The device has a dew heater that actively removes moisture at full power, ensuring a dry, dew-free surface. This prevents water droplets from accumulating between the mask and the telescope lens after closing.A built-in temperature and humidity sensor automatically adjusts the heating power to the calculated dew point. You can activate or deactivate this function as required, or set and save the heating power manually. An integrated light sensor further improves automation by automatically closing the lid at sunrise.
The device has integrated Wi-Fi, so you can connect and control it either via its own Wi-Fi hotspot or as a client in an existing network. It can be controlled via smartphone.
The FlatMaster is supported by ASCOM 7 and ASCOM Alpaca.
