RAW File Loading in Photo shop ( using Camera Raw )

File > Open.. > Choose your CR2 file.

Check factors in [Basic]  and set the values as below.

Check factors in [Detail]  and set the values as below and press [Open Image] Button.

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Image Processing for Nebula Object

There are so many ways to make astro images from Raw File .

Here is one way using RawDigger + Photoshop. Read more

Q: How can I change the reddish astro images taken by my modified camera to the natural colored astro images?

A:  The camera modification for astro photography aims to  maximum H-alpha (Hα)  656nm recording. Camera modification for astro photography make the regular camera to High Ha sensing camera, it’s about 3 times more compared to unmodified digital cameras.

But the color of background will become so reddish, because the increased red light amount.

There are many ways of image processing to correct the reddish colors to natural colors.

Here are 2 simple ways.

A. Take the shots using Custom White Balance

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Monochrome Camera

WHAT IS A ‘DEBAYERED CAMERA’ ?

To convert the color image sensor of a generic digital camera to a monochrome sensor, we must remove the bayer filter layer(= Color Filter Array=CFA) on the image sensor. This is called “Debayering”.

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Astro A7s System Chart

1. Active Cooling with EXcooler
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Astro 6D System Chart

1. Active cooling with EXcooler
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Astro A7s (Cooling modified SONY A7s)


The launch of Sony’s A7s this year is remarkable because of it’s very good low light performance and 4K movie mode with it’s Full Frame image sensor.
 The A7s 12 megapixels is small compared to other full frame digital cameras but this camera is special to amateur astronomers because of it’s ultra high iso (up to 409,600).

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Test shots of Monochrome eos 60D

Below is the first test shot image when we tried ti remove the Micro Lens and CFA using optical polishing powder. The brightness of the micro lens removed area is quite a lot dimmer than the area with the micro lens and CFA still intact.

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