blank'/>

Astrophotography banner

Tuesday, April 26, 2011

Saturn NexStar 4SE RegiStax 6 NexImage Bahtinov mask and Vibration Suppression Pads

Saturn – April 21, 2011

This planetary image of Saturn was captured using a Celestron NexStar 4SE and NexImage planetary camera. Observing conditions were challenging — windy skies with intermittent clouds — so several techniques were used to maximize image stability and focus accuracy.

To reduce vibration from wind and mount movement, Celestron Vibration Suppression Pads were placed under the tripod. For precise focus, a Bahtinov focus mask was used before recording video.

Saturn astrophotography using Celestron NexStar 4SE and NexImage camera processed in RegiStax 6
Saturn, Celestron NexStar 4SE, NexImage, Vibration Suppression Pads, Bahtinov mask, Astrophotography

Video capture details:
Duration: 4 minutes (240 seconds)
Frame rate: 10 fps · Total frames: 2400

RegiStax 6 processing:
Align box: 3×3 · 10 alignment points
Drizzle optimization enabled
Wavelets: Gaussian · Initial Layer 3 · Linked layers 1 & 2
RGB shift correction

Photoshop post-processing:
Crop · Luminosity layer · Saturation · Contrast · Unsharp Mask · Save for Web (JPEG)

Saturn image processed in RegiStax 6 showing rings and planetary detail
Saturn, Celestron NexStar 4SE, NexImage, Astrophotography

Second capture session:
Duration: 4 minutes 30 seconds (270 seconds)
Frame rate: 10 fps · Total frames: 2700

RegiStax 6 processing:
Align box: 3×3 · 11 alignment points
Drizzle optimization enabled
Gaussian wavelets · Linked layers 1 & 2 · RGB shift

Photoshop post-processing:
Crop · Curves · Contrast · Unsharp Mask · Despeckle · Save for Web (JPEG)

Bahtinov mask used on Celestron NexStar 4SE for precise planetary focus
Bahtinov mask, Celestron 4SE, Brooklyn Astrophotography

Celestron vibration suppression pads used for planetary astrophotography
Celestron Vibration Suppression Pads

Even with a small telescope like the Celestron NexStar 4SE, good planetary results are possible when focus, stability, and processing are handled correctly. Using a Bahtinov mask for precise focus, vibration suppression pads to reduce shake, and proper RegiStax 6 processing can make a bigger difference than aperture alone. In many cases, careful technique with a smaller scope can outperform a larger telescope used without attention to these details.

Related Celestron NexStar 4SE Astrophotography

Monday, April 11, 2011

Comparison UV/Infrared Cutoff filter vs. without filter - Celestron 4SE NexStar NexImage

Just bought UV/Infrared Cutoff filter and tried to test it.

Saturn photos with UV/Infrared Cutoff Filter and without filter, Celestron 4SE, NexImage
Upper photo - with UV/Infrared Cutoff Filter
Bottom photo - without filter

Saturday, April 9, 2011

RegiStax 6 vs. 5 comparison - Jupiter Celestron 4SE

Here is an example of the difference between Registax v5 and v6 for Jupiter (Jupiter with Ganymede Moon and Ganymede Shadow Transit, September 18, 2010 - Celestron 4SE)

Registax v6 - Wavelet - Gaussian Initial Layer 3 Used Linked Wavelets with denoise 1 and 2 layers, RGB shift
Jupiter with Ganymede and shadow transit processed in Registax 6 using linked wavelets, Celestron 4SE astronomy
Registax 6, Celestron 4SE, Jupiter
Jupiter with Ganymede and shadow transit processed in Registax 5, Celestron 4SE backyard planetary astrophotography
Registax 5, Celestron 4SE, Jupiter
Some clouds are more visible in Registax v6, the shadow and Ganymede moon looks better. So my opinion Registax 6 gives better result with Used Linked Wavelets.

Related Astrophotography Posts


Saturn opposition, RegiStax 6, Celestron 4SE telescope

Saturn opposition 2011 - Celestron 4SE

Celestron NexStar 4SE Telescope, NexImage, 2x Barlow lens, UV/Infrared Cutoff Filter (1.25")

April 3, 2011 12:26AM (EST)


Video duration 7 min (420sec), Frame Rate 5 frames/second, 2100 frames.

Registax v6 - Align Default, 16 align points, Drizzling Optimization, Wavelet - Gaussian Initial Layer 3 Used Linked Wavelets with de-noise 1 and 2 layers, Zoom, RGB shift

Photoshop CS3 - Crop, Curves... - Auto with Highlight Color 210 210 210 , Save for Web Device jpg

Saturday, April 2, 2011

RegiStax 6 - Astrophotography Saturn - Testing new version v6

In April 2011, RegiStax 6 was officially released — and I immediately downloaded it to test on one of my favorite planetary targets: Saturn.

For planetary astrophotographers, RegiStax has long been one of the most important free tools available. The new version introduced major improvements in alignment, wavelet sharpening, and processing speed — making experimentation much easier and more intuitive.



What Was New in RegiStax 6?

Release date: April 2, 2011
Platform tested: Windows Vista

Installation was simple and smooth. Compared to Version 5, the interface became noticeably more intuitive and streamlined.

One of the biggest improvements for me was the multi-alignment feature. In Version 5, I occasionally experienced alignment issues. In RegiStax 6, alignment worked flawlessly — almost like magic.

The introduction of Linked Wavelet Layers was a game-changer. This allowed more controlled sharpening adjustments across layers, producing smoother yet detailed planetary surfaces.

Processing speed was significantly improved, allowing more experimentation with parameters — essential when trying to extract fine details from stacked planetary frames.

Equipment Used for Saturn Imaging

Telescope: Celestron NexStar 4SE
Barlow Lens: 2× Barlow
Camera: NexImage planetary webcam
Location: Brooklyn, New York
Target: Saturn

This setup represents classic early-2010s webcam planetary astrophotography — recording AVI video files and stacking thousands of frames in RegiStax.

Saturn astrophotography using Celestron NexStar 4SE and NexImage webcam processed in RegiStax 6
Webcam Astrophotography - Celestron 4SE NexImage - Brooklyn Astronomy

Processing Workflow in RegiStax 6

The video above demonstrates the full workflow:

  • Loading AVI video file
  • Setting alignment points
  • Frame quality analysis
  • Stacking selected frames
  • Wavelet sharpening (linked layers)
  • Final image optimization

Stacking video frames dramatically improves signal-to-noise ratio and reveals planetary details such as Saturn’s ring structure and atmospheric banding.

Why RegiStax Was (and Still Is) Important

In the early 2010s, RegiStax was one of the most accessible tools for amateur planetary imaging. It allowed backyard astronomers — even from urban environments like Brooklyn — to capture detailed images of planets.

Even today, many astrophotographers use RegiStax for final wavelet sharpening after stacking in AutoStakkert.

Huge thanks to the developers of RegiStax for creating and maintaining such an incredible free tool for the astronomy community.

Related Astrophotography Posts