DSLRs and other “daytime” cameras (such as mirrorless, etc.) are popular choices for astrophotography (especially for imagers with less experience) for many reasons; they are relatively cheap nowadays, they have multiple uses including for normal photography, many people already own them before pursuing astrophotography, and they are less complicated than dedicated astro cameras (although not by much). For these reasons, there are many who use them for astrophotography and many software and hardware offerings exist to allow their usage on various telescopes and mounts. However, there are also downsides, some of which are insurmountable Continue reading “Using Nikon DSLRs for Astrophotography?”

Bias, or offset, frames are the simplest calibration frames utilized in astrophotography because there are no demanding criteria or setup concerns, and they can be saved and used for months. Bias frames are actually fairly important, both for your light frames and for your flat frames. In fact, proper use of bias frames is required in order for flats to calibrate your light frames properly and to remove unwanted artifacts from the lights themselves Continue reading “How to Take Bias Frames for DSLRs”