A Planetary Camera for Long-Focal Length Guiding: ZWO ASI432MM Review

A Planetary Camera for Long-Focal Length Guiding: ZWO ASI432MM Review

The ZWO ASI432MM camera. Credit: ZWO Large aperture reflectors with long focal lengths can be great for imaging small objects. Many SCTs, RCs, IDKs, and CDKs have focal lengths greater than 2000mm, but they do require guide cameras for autoguiding most of the time. ZWO recently introduced a planetary camera, the ASI432MM, that seemed to…

Quality RGB Filters for Less: Astronomik Deep-Sky RGB Filter Review

Quality RGB Filters for Less: Astronomik Deep-Sky RGB Filter Review

Astronomik Deep-Sky RGB filters with mounting cells. Credit: Astronomik With an increasingly broad range of simple yet capable equipment, astrophotographers can pursue a wider range of targets than ever. With dramatic improvements in camera technology, along with significant cost reductions, monochrome cameras are now available at a comfortable price point. Astronomik’s Deep-Sky RGB series of…

Pegasus Astro Indigo Universal Filter Wheel Review

Pegasus Astro Indigo Universal Filter Wheel Review

Astrophotography is becoming more accessible as equipment choices increase while prices drop. Advances in camera technology have led the way. In the early 2000s, a mono CCD camera and filter wheel set was out of reach for many. Now, imagers have a broad selection of mono cameras to choose from, some costing no more than…

A Compact and Affordable Astronomy Computer: Mele Quieter2Q Review

A Compact and Affordable Astronomy Computer: Mele Quieter2Q Review

The Mele Quieter2Q. Credit: Mele Like many, I used to use my trusty laptop to control my telescope and astrophotography setup. While it worked well, the main drawbacks were getting all the USB cables connected to it and the power consumption, which is an issue when you run off batteries in the field. So I…

A Large, Fast Astrograph: Planewave CDK14 With a Custom Imaging Train

A Large, Fast Astrograph: Planewave CDK14 With a Custom Imaging Train

The author’s Planewave CDK14 configured as an f/4.76 system with off-axis guiding. I have been very pleased with the performance of my Planewave CDK14 for imaging with its long focal length (f/7.2). See my review here. But given its very large 70mm circle, I felt it was a waste to not record all the photons…

Camera Tilt Correction Made Easy: Baader Planetarium M68 Tilter Review

Camera Tilt Correction Made Easy: Baader Planetarium M68 Tilter Review

Astrophotography involves replacing an eyepiece with a camera. While this seems simple in theory, for the high resolution and large fields we try to achieve with photography, the position of the camera’s sensor at the focal plane is critical. Even with perfect optics, the image we capture can be ruined if the camera is attached…

Narrowband Filter Shootout! Chroma 3nm vs Astronomik 6nm

Narrowband Filter Shootout! Chroma 3nm vs Astronomik 6nm

Chroma (left) and Astronomik narrowband filters. Credit: Chroma, Astronomik For imaging nebulae, the combination of a monochrome camera and narrowband filters can create truly breathtaking results.  Nebulae are composed of a number of gases, each emitting their own distinct wavelengths (very narrow bands of color). While we can definitely capture these colors with RGB color…

The Planewave Instruments CDK14 Tested and Reviewed

The Planewave Instruments CDK14 Tested and Reviewed

The Planewave CDK14 on an AP1100 mount housed in the NexDome 8ft (2.2m) observatory dome. Having owned the Planewave CDK12.5 (reviewed here), I was very interested in how much difference I’d find with the larger CDK14. I was a bit hesitant to take the leap at first, as the two telescopes’ focal lengths are almost…

Flat Fields Made Easy: Aurora Flatfield Panel Review

Flat Fields Made Easy: Aurora Flatfield Panel Review

I always recommend using flat field frames to calibrate deep sky images. My most recent imaging setup with a large full-frame camera and an extreme 0.66x focal reducer made it even more important to get perfect flat field calibration frames. Reaching perfection isn’t easy but the Gerd Neumann Aurora Flatfield Panel claims it will get…