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Best mod for dedicated astrophotography camera

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#1 TAK346

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Posted 01 August 2020 - 02:29 PM

I have a Canon 7ti which I only use for astrophotography no other photography.  I’d like to have it modified.  What would be the best modification for deep space imaging with a SW Evostar 100ED refractor?  I read many, sometimes confusing, pros/cons for full spectrum v H-alpha only.  Is there a simple modification which will not require many additional filters?  Life Pixel, Kolar Vision and Spenser’s Camera have options.  I’d like advice in choosing the correct one.



#2 Sandy Swede

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Posted 01 August 2020 - 02:47 PM

You may wish to correspond with CN vendor astrohobbyist (Daniel).  He modified my Canon M50 and I am very satisfied.  You have three levels of modification from which to choose (see link below).

 

https://www.cloudyni...-full-spectrum/



#3 jgraham

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Posted 01 August 2020 - 03:14 PM

I have several modified DSLRs with both the Baader (H-alpha) and full spectrum mods. Unless you have a specific interest in going all the way out to the near IR the additional response of the full spectrum mod serves no real purpose. For astronomical imaging the Baader mod is plenty good enough.

Food for thought.

#4 TAK346

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Posted 01 August 2020 - 03:19 PM

You may wish to correspond with CN vendor astrohobbyist (Daniel).  He modified my Canon M50 and I am very satisfied.  You have three levels of modification from which to choose (see link below).

 

https://www.cloudyni...-full-spectrum/

Thank you for the link.  I will ask him a couple of questions,



#5 bobzeq25

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Posted 01 August 2020 - 03:23 PM

I have a Canon 7ti which I only use for astrophotography no other photography.  I’d like to have it modified.  What would be the best modification for deep space imaging with a SW Evostar 100ED refractor?  I read many, sometimes confusing, pros/cons for full spectrum v H-alpha only.  Is there a simple modification which will not require many additional filters?  Life Pixel, Kolar Vision and Spenser’s Camera have options.  I’d like advice in choosing the correct one.

This is _really_ simple, although the words (and some misinfrmation out there) make it difficult. 

 

"Full spectrum" sounds sexy, but almost no one needs it.  If you're an exception, you'll know it.  You'll need an additional UV-IR blocking filter.

 

Ha replaces the camera filter with a UV-IR blocker that passes Ha, which is what you need.  No additional filter is necessary.

 

Minor point.  I used LifePixel, very professional vendor.


Edited by bobzeq25, 01 August 2020 - 03:25 PM.

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#6 Sandy Swede

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Posted 01 August 2020 - 03:26 PM

Tak346:

#3. Enhanced modification

Although not discussed specifically, I would not expect that the dust reduction capability has been removed.  I'm sure he would have disclosed that outcome.  But, like they say, "never assume . . . . " 



#7 TAK346

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Posted 01 August 2020 - 03:34 PM

I have several modified DSLRs with both the Baader (H-alpha) and full spectrum mods. Unless you have a specific interest in going all the way out to the near IR the additional response of the full spectrum mod serves no real purpose. For astronomical imaging the Baader mod is plenty good enough.

Food for thought.

Thank you for your experienced advice.  H-alpha appears to be the way to go - for my uses.


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#8 TAK346

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Posted 01 August 2020 - 03:47 PM

This is _really_ simple, although the words (and some misinfrmation out there) make it difficult. 

 

"Full spectrum" sounds sexy, but almost no one needs it.  If you're an exception, you'll know it.  You'll need an additional UV-IR blocking filter.

 

Ha replaces the camera filter with a UV-IR blocker that passes Ha, which is what you need.  No additional filter is necessary.

 

Minor point.  I used LifePixel, very professional vendor.

Thank you.  All the options LifePixel presented were daunting.  I read a review on the LifePixel site which suggested that the H-Alpha mod eliminated the dust reduction feature.  The Kolar Vision description indicates that they maintain it but I should ask LifePixel directly.



#9 TAK346

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Posted 01 August 2020 - 03:51 PM

Tak346:

#3. Enhanced modification

Although not discussed specifically, I would not expect that the dust reduction capability has been removed.  I'm sure he would have disclosed that outcome.  But, like they say, "never assume . . . . " 

I thought it was interesting that option #3 states: "conversion preserves the Low Pass Filter. The LPF creates a slight gaussian blurring effect on images for the purpose of reduce moire effect"  If we are shooting in RAW why not get rid of the LPF?  I think it is more an issue with jpg images.



#10 Readerp

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Posted 01 August 2020 - 04:07 PM

Lifepixel Canon DSLR H-Alpha Camera Conversion is what you want, I think.

 

I have had a Nikon D5300 and D810 converted to pass H-alpha with the replacement UV/IR cut that they install.

 

Both have worked perfectly. No issues with reflections of bright stars.


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#11 TAK346

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Posted 01 August 2020 - 04:31 PM

Lifepixel Canon DSLR H-Alpha Camera Conversion is what you want, I think.

 

I have had a Nikon D5300 and D810 converted to pass H-alpha with the replacement UV/IR cut that they install.

 

Both have worked perfectly. No issues with reflections of bright stars.

Thank you - the advice here was been very useful and specific.  My research on various sites was confusing.



#12 Sandy Swede

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Posted 01 August 2020 - 06:18 PM

I thought it was interesting that option #3 states: "conversion preserves the Low Pass Filter. The LPF creates a slight gaussian blurring effect on images for the purpose of reduce moire effect"  If we are shooting in RAW why not get rid of the LPF?  I think it is more an issue with jpg images.

Perhaps if you will not need to take photos in the daytime, that is not an issue.  I wanted to be able to have the jpeg along with RAW.
 



#13 TAK346

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Posted 01 August 2020 - 06:59 PM

Perhaps if you will not need to take photos in the daytime, that is not an issue.  I wanted to be able to have the jpeg along with RAW.
 

Yes - that makes sense.  Thank you.




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