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Canon 6D vs ASI 294 MC Pro

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#1 Scott Ca

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Posted 26 June 2019 - 10:09 PM

First post here, so be easy on me. 

Like the title implies I'm contemplating moving on from a 6D to a one shot color camera like the 294.

 

For the last 2 years I've used a Canon 6D (full frame) with a SkyWatcher 100mm APO for DSO. I also have a Celestron 9.25 that I tried to use the 6D on with substandard results. After purchasing hundreds of dollars on adapters, filters, etc, I scrapped using the 6D for planets and purchased a ASI 224 which gives me much more pleasing photos. 

 

Now after 2 years of using the 6D for DSO the learning curve is tapering off and I'm seeing what I perceive to be shortfalls in my setup. For one, nearly all the Messier objects (except M31 of course) requires extensive cropping to get the object large enough to be useful. Second, I'm getting really tired of clip in filters. I live in a red area with substantial light pollution and have experimented with a few different CLS filters which kind of help, but I'm still not getting the results I'm looking for. The camera is unmodified since I also use it for regular photography which means taking the clip in filters in and out and no matter how hard I try to be quick and clean the sensor always seems to get dust on it, which i can usually remove with flats for astrophotos, but is frustrating when I'm taking pictures of birds and wildlife.

 

I've been looking into the 294 MC pro. I'm wondering if that would fix my problem of having to crop so much of the picture in processing? I'm also like the idea of screw on filters, perhaps experimenting with UV cutoff and a duo band? 

 

I'm sure a lot of you have made the jump from DSLR to a one shot camera. Is it worth it? Is my thought process even on the right track?

 

Here's some photos I have taken in the past, some of these are mildly usable, some are horrible. I'm looking to get better.

M51_LPRO1 (1).jpg

M42 11152018.jpg

M31 FINAL.jpg

M16 (1).jpg

 

 

 

 



#2 Jim Waters

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Posted 26 June 2019 - 11:13 PM

Unless the scopes - refractors or reflectors are designed for Full-Frame cameras Mono / OSC or DSLR's the images will come out poor and need to be cropped because of vignetting.  I haven't come across a Clip-In filter for the 6D that doesn't cause vignetting.  You are best off with an APS-C DSLR or OSC camera like the 294 MC Pro.  If you do get a OSC make sure its cooled...!

 

I never use filters.  They destroy the color balance.

 

These were shot with a 6D with full-frame lens.

https://flic.kr/p/BKSuK5

https://flic.kr/p/YUvW9W

https://flic.kr/p/YrWXuV

https://flic.kr/p/CXjq8y

https://flic.kr/p/2g9rCcD

https://flic.kr/p/QJ8x2M


Edited by Jim Waters, 26 June 2019 - 11:22 PM.


#3 t-ara-fan

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Posted 26 June 2019 - 11:15 PM

I went from 6D and 7D Mark II to an ASIO71MC Pro.

I went with the APS size 071 because: use with Hyperstar, use with Canon DSLR lenses, right size sensor for imaging circle of my EdgeHD 8 and 80mm factor.

The bigger sensor in the 071 costs more, but the 294 is close. Any cooled sensor will have just a fraction of the noise of a nice DSLR. Like <10% of the noise, which would take 100 subs to get that low with stacking. The noise is amazingly low. Love it.

Some cameras have nasty problems with amp glow, makes dark subtraction difficult. I don't know if the 294 is one of those, but check into it.

Edited by t-ara-fan, 26 June 2019 - 11:17 PM.

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#4 Jim Waters

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Posted 26 June 2019 - 11:24 PM

I went from 6D and 7D Mark II to an ASIO71MC Pro.

I went with the APS size 071 because: use with Hyperstar, use with Canon DSLR lenses, right size sensor for imaging circle of my EdgeHD 8 and 80mm factor.

The bigger sensor in the 071 costs more, but the 294 is close. Any cooled sensor will have just a fraction of the noise of a nice DSLR. Like <10% of the noise, which would take 100 subs to get that low with stacking. The noise is amazingly low. Love it.

Some cameras have nasty problems with amp glow, makes dark subtraction difficult. I don't know if the 294 is one of those, but check into it.

With the exception of not being cooled did you see much difference between the 7DMkII and the 071MC Pro?



#5 Gipht

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Posted 26 June 2019 - 11:27 PM

I also went from the 6D to the ASI071MC Pro, and am just starting to get the hang of using the camera.   The noise  is noticeably less.  The stars are smaller in size then those produced by the 6D.  I wanted the extra sensor size for a larger field of view compared to the 294 camera.

 

Your other option is pairing the 6D with a larger telescope,  and that might be much more expensive if that also means a change in mount. 

 

Your photographs look excellent.

 

Here is a link to a recent photo with the camera:  https://www.cloudyni...16#entry9409190


Edited by Gipht, 26 June 2019 - 11:32 PM.


#6 Scott Ca

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Posted 26 June 2019 - 11:29 PM

Unless the scopes - refractors or reflectors are designed for Full-Frame cameras Mono / OSC or DSLR's the images will come out poor and need to be cropped because of vignetting. I haven't come across a Clip-In filter for the 6D that doesn't cause vignetting. You are best off with an APS-C DSLR or OSC camera like the 294 MC Pro. If you do get a OSC make sure its cooled...!

I never use filters. They destroy the color balance.

These were shot with a 6D with full-frame lens.
https://flic.kr/p/BKSuK5
https://flic.kr/p/YUvW9W
https://flic.kr/p/YrWXuV
https://flic.kr/p/CXjq8y
https://flic.kr/p/2g9rCcD
https://flic.kr/p/QJ8x2M

Those are beautiful pictures. I see all or nearly all of them is with the 200 mm f2.8 lens. That’s kind of what I want to go back to with the 6D. Normal camera lens like the 14, 24, 200 mm. Using a dedicated camera for the telescopes.
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#7 Scott Ca

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Posted 26 June 2019 - 11:36 PM

I also went from the 6D to the ASI071MC Pro, and am just starting to get the hang of using the camera. The noise is noticeably less. The stars are smaller in size then those produced by the 6D. I wanted the extra sensor size for a larger field of view compared to the 294 camera.

Your other option is pairing the 6D with a larger telescope, and that might be much more expensive if that also means a change in mount.

Your photographs look excellent.

Thank you! What telescope are you using with the 071? Aside from the lower noise, would you say the 071 was an upgrade from the 6D? I really don’t want to go down another financial wormhole if the payoffs aren’t there.
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#8 Scott Ca

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Posted 26 June 2019 - 11:39 PM

I went from 6D and 7D Mark II to an ASIO71MC Pro.

I went with the APS size 071 because: use with Hyperstar, use with Canon DSLR lenses, right size sensor for imaging circle of my EdgeHD 8 and 80mm factor.

The bigger sensor in the 071 costs more, but the 294 is close. Any cooled sensor will have just a fraction of the noise of a nice DSLR. Like <10% of the noise, which would take 100 subs to get that low with stacking. The noise is amazingly low. Love it.

Some cameras have nasty problems with amp glow, makes dark subtraction difficult. I don't know if the 294 is one of those, but check into it.

Thank you for the reply, as I mentioned to another reply, you would say the quality of the 071 was worth the cost to transition from a DSLR?

#9 Jim Waters

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Posted 27 June 2019 - 12:08 AM

Those are beautiful pictures. I see all or nearly all of them is with the 200 mm f2.8 lens. That’s kind of what I want to go back to with the 6D. Normal camera lens like the 14, 24, 200 mm. Using a dedicated camera for the telescopes.

Thanks...

 

Here's a wide-field one.  I need to post my others - 24mm, 85mm and 400mm.

 

https://flic.kr/p/WBQze1



#10 Gipht

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Posted 27 June 2019 - 05:06 AM

I have a couple of refractors stv102, and stv70 that will be used most often.  I believe this camera will work well also with my 10" f/3.9 reflector.  If you are in AP for the long haul,  then the cooled camera is very worth it.  The difference in the quality of the pictures is noticeable, but not overwhelming.



#11 Iamhondo

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Posted 28 June 2019 - 12:08 PM

I have an ASI071 MC cooled (un-pro) and also a couple of DSLRs (one modded, the other not). People have pointed out some of the transition issues of going from DSLR to something like the ASI071. But one aspect seems overlooked.

 

With a DLSR, you can take a scope on an EQ mount, add the DSLR and a intervalometer and take many photos with relatively little battery power. With a cooled camera (outside of winter) you'll crunch through the battery power very fast. So a DSLR makes a smaller, tidier travel kit. You can see what people are doing with widefield imaging (Milky Way and nightscapes) using a low-power non-goto tracker using a DSLR. 

 

Another power issue is that any dedicated astrocamera needs a PC (or surrogate) to control and store photos. A DSLR can store photos (and be controlled by) a computer or just store photos onboard.

 

So a DSLR offers some portability options what an astrocamera doesn't have.

 

That said, in my back yard, I'm imaging about 90% with the ASI071 and 10% with the DSLRs.

 

-- Joe




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