What is the primary function of the PrimaLuceLab GIOTTO 285?
The GIOTTO 285 is a smart flat field generator. Its purpose is to provide a perfectly uniform, dimmable light source for capturing flat calibration frames. These frames are essential in astrophotography processing to correct for optical artifacts like vignetting (darkened corners) and shadows cast by dust on your sensor or filters.
How do I control the brightness of the GIOTTO 285?
You have several options for remote control, all managed through software. There are no manual knobs on the unit itself.
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USB-C Connection: Connect to an EAGLE or Windows PC to control brightness using PrimaLuceLab's PLAY software or the ASCOM driver.
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WiFi Connection: Connect your smartphone or tablet to GIOTTO's WiFi network and use the Virtual HandPad to adjust brightness and save presets.
Can I use the GIOTTO 285 with software other than PLAY, like N.I.N.A. or SGP?
Yes. PrimaLuceLab provides a dedicated ASCOM driver for the GIOTTO 285. This allows it to be controlled by any ASCOM-compliant astrophotography software, including popular applications like N.I.N.A. (Nighttime Imaging 'N' Astronomy) and Sequence Generator Pro (SGP).
How does the GIOTTO 285 become a motorized cap for my 10" Meade ACF telescope?
To enable motorized operation, you must add the optional ALTO telescope cover motor. The ALTO clamps onto a Vixen or Losmandy-style dovetail bar on your telescope. It then physically attaches to the GIOTTO, allowing it to motorize the opening and closing of the panel. This effectively turns the GIOTTO into a remote-controlled dust cover that can also be activated for taking flats automatically.
I image the Veil Nebula (NGC 6960) with LRGB and narrowband filters. Can the GIOTTO 285 streamline my calibration?
Absolutely. Because different filters require different exposure times for flat frames, the GIOTTO's software control is a major advantage. Using the Virtual HandPad via WiFi, you can create and save brightness presets for each of your filters (L, R, G, B, Ha, OIII, SII). When it's time to take flats, you can simply recall the correct preset for each filter, ensuring consistent and optimal ADU targets without manual guesswork.
What kind of power supply does the PrimaLuceLab GIOTTO 285 require?
The GIOTTO 285 is powered by a standard 12V DC power source, the same type used by most astronomy mounts and cameras. It does not require a separate or proprietary power unit, making it easy to integrate into the power distribution system of your existing astrophotography rig.