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Night shots from Backyard EOS are not stabile


jk22459
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Hello 

I purchashed premium version few days before. I made a test of Backyard EOS with my Canon EOS 250 for two continous nights taking fotos. 

I realize that the pictures from Backyard EOS was not stabile. Can you help me ?

I had no broblem with Canon utrilites software ( remote shoting ) with the same parameters.

I had no problem taking fotos with my camera alone.

Thank you 

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Do you mean "stable" instead of "stabile"?

We need to know about your setup. Are you shooting widefield images with a lens on the camera, or prime-focus images with the camera attached to a telescope? What telescope and focal length? What mount type? If Alt-Az is it on a wedge? Are you autoguiding?

Specifically what is wrong with the "images? When you say the images are not stable I think that you mean either that successive images are shifted or that the stars in an image are elongated. Neither is a problem with BYE or the camera, but could be caused by bad or no autoguiding, bad polar alignment, or image rotation when using a non-polar alt-az mount.

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Hello and thank you for your answer

First off all sorry me for my bad English.

The two shots I sent you made with Canon EOS 250D and Tamron Lens 28-300 IS VC. on a tripod and my laptop conected via USB.

The parameters was  Time : 2sec f: 6,3  F: 300mm and ISO 12.800

You can see the differnse between the the two softwares. Backyard EOS and Canon Utilities ( remote shoting )

This happened for all pictures

John Kalantzis

Backyard EOS.jpg

Canon Utilities.JPG

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Your English is fine, don't worry about that :)

I agree with the above, taking a picture with BackyardEOS or EOS Utility makes no difference.  Your issue is definitely due to physical movement of your setup. I suspect your tripod may be causing this.... sometimes just the vibration of walking away from your tripod while the image is taken will cause this.

Keep us posted.

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Hello and thank you for your direct answers.

1. I can't agree with you "astroman133" because the exposure and all parameters and coditions was the same in Canon Utilities and BackyardEOS.

2. I can' t agree with you "admin" because I have the same result in up of 25 shots.

I will try again next few days (nights) when weather coditions are better here in Greece and I will keep you informed.

My regards

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I can guarantee that you have come to a mistaken conclusion that BYE is responsible for what you are seeing in your images. 

A photographic tripod is not stable enough for astrophotography, especially with a telephoto lens long focal length lens or small telescope.

A slight wind, or even the camera's mirror lifting up, can cause enough movement to be visible in your images if the camera is not held securely. Piggybacking it on a telescope or using an astronomical tripod  are much more stable than a photographic tripod.

Think about this...hundreds of people have used BYE and BYN for several years and nobody else has reported your symptoms. The problem is definitely with your setup.

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There are a few tricks to improving the STABILITY of a Photographic Tripod:

  1. Set the Tripod Legs as Short as they will go - especially Do Not extend the skinniest last Leg Segments
  2. Make sure that the Legs are set as wide as the Tripod allows - try to scoot each Tripod Foot an extra inch or two by hand (having the Legs in tension stabilizes the Tripod)
  3. Do NOT Extend the Tripod Neck - the Tripod Head should be as close to the Tripod Shoulder as possible
  4. Hang a 5-10lb weight (perhaps the Camera Bag) on the Bag Hook at the bottom end of the Tripod Neck (and use the Straps tied to Legs to keep the Bag from swaying)
  5. Have the Camera/Lens Combo mounted as Balanced as Possible (if the Lens has a Tripod Foot - use it)
  6. Make sure that the USB Cables are not hanging Freely from the Camera - wrap them loosely back around the Camera Body and down the Tripod Head

In general, Astro Photography is susceptible to Vibration in ways that NO Daytime Photography ever is - Longer Exposures at Much Lower Light Levels.  This means that there is Nothing to hide the Vibrations which occur in any Photographic Tripod Setup.

Note how much more Massive and Heavy Astronomic Tripods are - 1.5-3 inch Steel Legs weighing 10-25lbs - and a Metal Leg Spreader.  And the Astronomic Heads are so much more Massive too - Manual-Geared Heads weighing 5-10lbs and GoTo Mounts weighing over 40lbs.  Their Massive Construction isn't just to hold the weight of 20-40lb Scopes, but rather to provide the Stability and Vibration Dampening required for real AP Imaging.

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On 2/7/2021 at 1:22 PM, jk22459 said:

Hello and thank you for your answer

First off all sorry me for my bad English.

The two shots I sent you made with Canon EOS 250D and Tamron Lens 28-300 IS VC. on a tripod and my laptop conected via USB.

The parameters was  Time : 2sec f: 6,3  F: 300mm and ISO 12.800

You can see the differnse between the the two softwares. Backyard EOS and Canon Utilities ( remote shoting )

This happened for all pictures

John Kalantzis

 

 

A 2-second exposure at a focal length of 300mm on a crop sensor is pretty much guaranteed to get star trailing even if your tripod is as stable as a rock. Any wobbling in your tripd would just add to it.

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Hello

Last night I get many shots of M44 using Backyard EOS and the same parameters:

Canon EOS 250D Tamron 28-300 and tripod. Exp: 2 sec f: 6,3  F: 300mm ISO: 12.800. The result is good enough for me.

I think the problem in previous nights maybe was temporary. I will continue to my tests using tracking mode ( using my telescopes mount ).

Thank you for your answers and your very useful informations.

My best regards from Greece.

IMG_0100-crop.JPG

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