DSLR CWB question

[Harpspitfire]

if you have a baader modded DSLR, you get that pinkish color when doing a daytime photo, but when you set a CWB it gets back to normal for day use, my question is-- since its modified to let more Ha pass, if you set a CWB for astro also to get that 'normal' look- wouldnt that still let the Ha pass since it already modified?

[troypiggo (Troy)]

I don't have a direct answer to you question, but do have to ask why you'd keep the terrestrial CWB setting for astro in the first place? Wouldn't you just set the camera to daylight WB? That's why you modded it, isn't it?

[Harpspitfire]

thats true- but i noticed if i do a lunar shot the color is off, only on LX does it look right, all the examples i seen showing the mod show the pinkish color shift if you use it like that, i was just wondering if CWB still passes the Ha since the filter was changed

[Tandum (Robin)]

I always used a CWB on my modified 40D when shooting astro. I had 2 set. One for use with my clip in LPS filter and one for use without the filter. CWB means custom white balance, it does not effect what the sensor sees, it effects how the image is processed inside the camera. As you have seen, a CWB makes the modified camera produce true colour daylight images. Same goes for astro shots. I found it made astro images a lot easier to post process.

[bmitchell82 (Brendan)]

I use nebulosity 2.0, There is a box to pick for Modded 20da or Modded camera white balance. on the camera i use the Daylight white balance as it is 5600 (what the suns wavelength outputs). Ive never had any problems with it so far

[Octane (Humayun)]

Yes, the white balance doesn't affect what the camera soaks up. The hydrogen alpha emissions will be there.

Leave your white balance to automatic and do your colour balancing in post processing.

Regards,
Humayun