About SharpCap?

SharpCap is an easy-to-use but powerful Astronomy camera capture tool. It can be used with dedicated astronomy cameras, webcams and USB frame grabbers.

A wide range of features makes SharpCap suitable for many types of astro-imaging including Planetary, Lunar, Solar, Deep Sky and EAA (Electronically Assisted Astronomy). A clear and logical UI makes the program easy for beginners to use. Comprehensive documentation will also help those who are just getting started.

Main Features

 Intuitive and Easy to Use    
Simple and logical application layout using standard, familiar Windows UI elements

 Video and Still Capture
Capture video to AVI and SER format; capture stills to PNG and FITS

 Planetary, Solar and Lunar Imaging
Support for high-speed cameras including USB3 speeds for lucky imaging

 Deep Sky Imaging
Exposure time only limited by camera capabilities

 Image Processing
Apply dark frame subtraction and flat frame correction. Flat frames can be applied at high speed.

 Live Stacking
See live deep sky images build on screen, each frame aligned and derotated before adding to the stack

 Polar Alignment  
Polar align using your guidescope - the easiest to use polar alignment tool available!

 Full Control of Camera
Full set of camera controls available alongside the capture area

 High Quality Histogram
Ensure proper exposure settings - use selection box to show histogram of a limited area

 Save and Restore Camera SettingsSave as many capture profiles as you like, name them, manage them and configure them to load automatically when camera opened
 Flexible File Naming   
Every capture file gets a unique name, you can configure how they are organised by target, date, time, etc.

 Capture Settings Saved
Camera settings used saved alongside every capture file - no forgetting what settings you used.

 Quick Capture     
Pre-defined video lengths by frame count and time to get capturing quickly

 Flexible Capture
Run captures of custom lengths, run sequences of captures at regular intervals

 Focus Aids    
Assistance in measuring quality of focus for planets, stars and surface images. Six focus score algorithms.

 ASCOM Focuser Support
Control your ASCOM focuser from within SharpCap, create graphs of focus quality versus focuser position.

 ASCOM Filterwheel Support
Control filter wheels from within SharpCap for LRGB capturing

 ASCOM Mount Support 
Adjust the position of your mount from within SharpCap, including spiral search to find objects just out of view.

 Plate Solving
Plate solve using AstroTortilla to sync your ASCOM mount to the automatically.

 Zoomable Preview
Zoom the preview in to see fine detail, zoom out to see entire frame from high resolution cameras.

 ReticuleMovable, resizable reticule for alignment, centering, collimation, etc.
 Scripting Language
SharpCap doesn't quite do what you want? Add your own functionality using Python scripting.

Supported Cameras

Supported Astronomy Cameras

Basler cameras
Altair Astro Cameras
ZWO cameras
Celestron and Imaging Source Cameras

Point Grey (now FLIR) Cameras
Webcams and Frame Grabbers

Cameras with ASCOM Drivers

Supported Webcams

  • Almost all webcams
  • Special support for adjusting parameters of the SPC900 webcam in the settings panel
  • LX modified SPC900 cameras (serial or parallel)



Live Stacking

Polar Alignment

Histogram with Selection Region
 Python Scripting Language
 Focus Quality Graph
Collimation Assistant (Experimental)
 ASCOM Hardware Control
Adjustable Reticule
Configurable Output File Naming
Logically Grouped Controls

Using SharpCap

There are some great video tutorials on using SharpCap for Astrophotography over on the Tutorials board at the forum (Note that you need to be a forum member to access the Tutorials).

Getting SharpCap

Head on over to the Downloads page.

Feature Requests

Got an idea for a new feature? Let me know by posting here. You can also see features suggested by others and join the discussion.

SharpCap Source Code?

Versions of SharpCap up to and including 1.5 included the source code as part of the installer. In the move to a new installer technology in version 2, this inclusion of the source code was no longer practical to maintain, so it was removed.

The latest versions of SharpCap are no longer open source, but remain free to download and for the use of core features.


Get in touch via the SharpCap Forums.

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