ir cutting filter any benefit for saturn jupiter and the moon

[iwols]

just wondering if there is any benefit when imaging with this filter?

Edited August 17, 2021 by iwols

[Jarvo]

None whatsoever I find. Although every single tutorial or magazine article extols the virtue of these filters. 
Even less now considering the altitude of Jupiter and Saturn. 
Queue the backlash……

 

 

[neil phillips]

Backlash started. Without UV IR CUT it will throw off colour balance big time. And with a newtonian or Mak or ED frac. Whats the point in that ? 

[symmetal]

OSC cameras generally have a UV/IR cut filter in the protection glass so another IR cut in the way would serve no purpose.

If the OSC camera had no UV/IR cut protection window, an added IR cut filter would improve image sharpness by blocking out of focus IR light hitting the sensor. Also, as the OSC bayer filters generally all pass IR to some extent, without the IR cut filter the colour balance would also be wrong, as Neil says.

With a mono camera you would normally use filters anyway for LRGB so an IR cut again wouldn't do anything. With no separate LRGB filters, so effectively wideband luminance, an IR cut would improve image sharpness as above.

For planetary an IR only pass filter can be useful on a mono camera as it blocks the shorter wavelength visible light and so the resultant image is less affected by the atmosphere so can yield a sharper image. However the camera IR sensitivity is not as high as in visible so the image is very dark and a longer exposure may be necessary which is then more affected by seeing.

Alan 

[PeterCPC]

+1 for IR cut filter.

[Aussie Dave]

yep what everyone else stated.
All of my ZWO ASI cameras don't have an UV/IR Cut sensor window only an AR (Anti Reflection) coated sensor window. My SVBONY SV305 Pro (ASI290MC clone) does have a UV/IR Cut filter window installed from factory. Without a UV/IR Cut filter it is very difficult to get correct colour balance and almost impossible to correct, detail will be on the soft side or lacking, it's very difficult to get good sharp detail as you are allowing the bad part of the Infra Red wavelength through.

 

Edited August 21, 2021 by Aussie Dave