A first test of a combination of new filters and better mono planetary/guide camera on my Skywatcher 130PDS with 3x Barlow.
My IR cut filter never arrived in time for use in combination with my #47 Violet filter which therefore let stronger IR light through to my UV image layer, saturating the signal with lower detail IR wavelengths than was intended. This is a budget alternative to a dedicated and expensive U-Venus or similar Venus filter. So I present a "UV" layer corrupted by IR light unfortunately.
Now the clouds are back as Venus gets ever lower as the nights go on so I've stuck with the data I have to produce this less than ideal image compared to what I was hoping to capture.
Captured with a ZWO ASI290MM mini USB2 guide camera used as a planetary camerea. I purchased this mainly as a guide camera and future off-axis guide camera but it's still an excellent planetary imager as can be seen in my earlier
moon mosaic.
Mirror Size - 130mm
Focal Length - 1950mm (650mm with 3x Barlow)
Resolution - 0.3" theoretical
Gain - 75
Gamma - 50
ROI - 304x300px
RGB image[li]Basic Neewer RGB filters from a visual filter set from my Dobsonian[/li]
[li]1 x 60s for R, G and B filters[/li]
[li]Shutter 2.0ms R / 1.7ms G / 1.5ms B[/li]
[li]Frames 17196 R / 17481 G / 16836 B[/li]
[li]Cropped/Aligned in PIPP[/li]
[li]Stacked with AutoStakkert 3, best 1% of frames[/li]
[li]Sharpened with Registax layers 1 & 2 dyadic[/li]
[li]Composited in Photoshop CC, colour balanced, cropped[/li]
UV/IR imageZWO 850nm IR pass filter[li]6 x 60s[/li]
[li]Shutter 17-20ms [/li]
[li]~19000 frames[/li]
Explore Scientific #46 Violet filter without IR cut filter which didn't arrive in time[li]11 x 60s[/li]
[li]Shutter 3-5ms [/li]
[li]~165000 frames: only used the best looking captures[/li]
[li]Cropped/Aligned in PIPP[/li]
[li]Stacked with AutoStakkert 3, best 1% of frames[/li]
[li]Sharpened with Registax layers 1 & 2 dyadic[/li]
[li]Layered best UV image as Blue channel, best IR image as Red and a 50/50 blend of UV/IR as Green in Photoshop C[/li]
[li]Played with highlights, shadows, saturation to try and bring through clear UV signal[/li]
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