REVOLUTION IMAGER
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SOLAR

The Revolution Imager has great sensitivity in the Hydrogen-Alpha range and so makes a great companion for your Solar Telescope and as owners of Hydrogen-Alpha Solar telescopes know, it takes some practice to really see solar detail in these telescopes, which makes the Revolution Imager a great tool for solar astronomy outreach. The settings below were tested on an Coronado 40mm single-stack Personal Solar Telescope (PST.) When using the Revolution Imager with a Coronado, do not use the supplied focal reducer as the camera will not come to focus with it attached in the PST.

WARNING: The settings below will allow you to see solar features ONLY IN A SOLAR TELESCOPE EQUIPPED WITH A HYDROGEN-ALPHA FILTER. These settings WILL NOT allow you to see any solar features on a regular astronomical telescope and attempting to point your regular astronomical telescope at the Sun without the correct safety equipment IS EXTREMELY DANGEROUS and will cause PERMANENT EYE DAMAGE AND DAMAGE TO YOUR EQUIPMENT

Please Note: we are currently updating these instructions for the Revolution Imager R2, for recommending settings for the R2 please see the recommend settings section in the R2 user guide, here


basic settings

These basic settings will allow you to see solar features using a Solar Telescope such as the Coronado PST. These basic settings use the WDR (Wide Dynamic Range) feature of the Revolution Imager to give you the best contrast for solar features.

Don't forget: when changing settings, use the save/exit function to lock them in.

 

Exposure Mode WDR
Sense Up OFF
Gain OFF
Exposure Time For the PST: 1/2000 is recommended.
Brightness 40
Gamma 1.0, use lower value for a brighter image
Stacking OFF
Color Mode NIGHT

make the image more-solar like

By altering the manual color balance of the Revolution Imager you can produce a visually pleasing solar image in the yellow that people expect, which is great for outreaches. To do this, however, means you must switch to NORMAL exposure mode instead of WDR.

Don't forget: when changing settings, use the save/exit function to lock them in.

 

Exposure Mode NORMAL
Color Balance MANUAL mode, RED: 96 and BLUE: 4
Color Mode

DAY or COLOR


solar prominences

increasing the exposure time of the camera will allow you to view solar prominences. In the image to the right you'll notice that Revolution Imager highlights areas that are over-exposed with a series of lines.

Don't forget: when changing settings, use the save/exit function to lock them in.

 

EXPOSURE TIME 1/250 or higher.

barlow

Using a barlow lens with the Revolution Imager allows you bring out more details on solar features and planets. Doing so, however, will require you to increase exposure time.

Exposure Time 1/250 for surface detail, X4 for prominences