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BYN For Planetary VS In-Camera Video


Farzad_K

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Hello,

I have never done planetary imaging and am getting prepared for the August solar eclipse event in Oregon. I am trying to figure out what a good approach to capturing the best image would be. I know I need to do a video, and I can do it either in-camera or I can use BYN. I know one advantage of using the BYN might be that it records to the compouter whereas internal recording takes place on the media card which could limit the recording time.

When I tried BYN it looks like the captured images are at 640x420 resolution. Is this the norm in planetary imaging? Can the resolution in BYN be adjusted? I am using a Nikon D750 with a lot of pixels on its sensor and it seems such a waste if I can't take advantage of them all.

I will be attaching that camera to an 8-inch SCT (2030mm focal).

Thanks.

Farzad

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If you want full sensor you need to take images.

Eclipse... the best memory IMO is observing... trying to image it is cool too, but if you have a single issue you'll miss it and you'll hate yourself for it :(

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So you are basically saying that BYN cannot be configured to capture higher resolution than 640x420? And yeah, for higher resolution then still photography is the way to go. You can still image the eclipse and observe it at the same time since most capturing can be automated.

 

Thanks for the response.

 

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1 hour ago, Farzad_K said:

So you are basically saying that BYN cannot be configured to capture higher resolution than 640x420? And yeah, for higher resolution then still photography is the way to go. You can still image the eclipse and observe it at the same time since most capturing can be automated.

 

Thanks for the response.

 

No, that is not what I said.  You can do it. You have 25 lines, set the first 12 in incrementing exposure value, #13 to the full eclipse, and the following 12 decreasing exposure value.  It's not perfect but this should give you an idea.

I experienced a full eclipse in the mid '70 when I was about 10 years old.  This is the best memory ever... observing.  If I would go see the eclipse this year I would go to observe, not image.  But that is just me.

Regards,

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Not sure if I can relate exposure values to resolution. BYN produces movie or image which is 640x420. I was just asking if that resolution was fixed or there was a way to enhance that. The camera itself can record at 1920x1080, 60 frame per minute. I am trying to decide whether I should tether and use BYN or should I just record using the camera.

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Don't confuse resolution with image size.  They are not the same thing.

Exposure values have nothing to do with resolution, my post above was only to illustrate that you can image the eclipse.  It made no reference to resolution.

Read this post I made not so long ago explaining resolution is not to be confuse with image size image size.

Regards,

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EDIT: The short answer is yes.

Your camera gives a  640x420 live view image.  BYN is limited to what the camera provides.  If your camera was able to provide a full sensor live view image at full sensor resolution that is what BYN would give it you.  But because the camera gives a maximum 640x420 live view image this is what BYN gives you.

BYN does live view only, not movie mode.

Hope this makes sense.

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Capturing Planetary Video and Capturing Solar Images are two different Things, with different Goals and different Requirements.

Planetary Video is used so that one can Capture the Best Possible Moments of Seeing regarding a Very Small yet Bright Object with Significant Detail.  This requires a High Frame Rate of a High Resolution (1:1) of a Small Imaging Area for a sustained period of 2-3 minutes.  This is what LiveView Planetary Video Capture provides.

Solar Imaging (depending on the Lens) requires Full Frame individual Captures at varying Exposures over the course of over an Hour.  This is what a Capture Plan such as Guylain suggests will provide.

The Good News is that, as the Sun is Out most every day, you have plenty of Opportunities to test what will work for your Equipment.

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7 hours ago, admin said:

EDIT: The short answer is yes.

Your camera gives a  640x420 live view image.  BYN is limited to what the camera provides.  If your camera was able to provide a full sensor live view image at full sensor resolution that is what BYN would give it you.  But because the camera gives a maximum 640x420 live view image this is what BYN gives you.

BYN does live view only, not movie mode.

Hope this makes sense.

Yes, it does make sense and am glad I looked into it. My camera can record high definition 1920x1080 at 60 frames per miniutre so it will be a better choice for me. I just need to have a high capacity storage card.

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2 hours ago, s3igell said:

Capturing Planetary Video and Capturing Solar Images are two different Things, with different Goals and different Requirements.

Planetary Video is used so that one can Capture the Best Possible Moments of Seeing regarding a Very Small yet Bright Object with Significant Detail.  This requires a High Frame Rate of a High Resolution (1:1) of a Small Imaging Area for a sustained period of 2-3 minutes.  This is what LiveView Planetary Video Capture provides.

Solar Imaging (depending on the Lens) requires Full Frame individual Captures at varying Exposures over the course of over an Hour.  This is what a Capture Plan such as Guylain suggests will provide.

The Good News is that, as the Sun is Out most every day, you have plenty of Opportunities to test what will work for your Equipment.

Yes, definitely got to take the setup out and practice, thanks.

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