Sunday, May 1, 2022

Magic Astro Imaging Tips & Methods

Magic Astro Imaging Tips & Methods
Using the ZWO ASI224MC Color Camera, work the magic by subtracting heavy light pollution, penetrate and improve less than ideal seeing conditions, change the color camera into a black and white camera, make your own special Venus filter,  and convert the color camera into a spectacular high resolution Mars camera to see the surface!

Make a Regular Color Camera
Zwo 1.25" UV/IR Cut
Use the above filter for a regular color camera.

Make a B&W Camera
Zwo IR 850nm Pass 1.25"
Use this filter as a near IR b&w camera.

Take Out Heavy Light Pollution
Zwo HA 7nm & 656 nm 1.25"

Make a Mars Camera
Astronomik Planet IR Pro 742 1.25", pass IR after 742nm
This filter penetrates down beneath the Martian clouds and has the potential to show spectacular surface features.

Improve Seeing Conditions
Svbony 1.25" IR-Pass Filter 685 nm, SV183
Reduce the effects of seeing for planetary photography, enhance contrast, pass infrared only, block wavelengths below 670nm to enhance contrast and surface detail and reduce the effects of seeing when used in IR-LRGB imaging of the
moon and planets.

Method to Cut Through Atmospheric Haze
Svbony 1.25" CPL circular polarizer/linear
1-40% light xmission, F9147A, cut atmospheric haze,
reduce reflections in the atmosphere, shoot through glass

DIY Cheap U-Venus filter
Have you seen the incredible cost of u-venus filters lately - plus there's no guarantee the new ones on the market have any quality. Why not make your own? Those expensive filters ask for an IR block, but when added, the UV transmission will be blocked almost completely.  Therefore the UV-pass filter must have no IR leak and this will be even more expensive. In summary an inexpensive UV filter can be made for Venus using a W47 filter combined with an IR blocking filter. At the time of this writing, W47 filters are all sold out.

Make a Better Venus Filter
Zwo 1.25" LRGB
The above filter set contains the special B filter which is IR cut only. Use the B filter with UV or V filter on Venus. B cuts off at 700nm.