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skycamper

Can I preview the images I took the night before and see the histogram?

Question

Im trying to view my images with BYN without the camera connected. The photos are in my computer but how do I view them and the histogram data from when I was taking the photos. I essentially want to view them as I view them when they were taken. Im wanting to scroll through the photos checking how the histogram changes as the moon comes up. 

Thanks

Abraham

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I have a 2nd question while im at it.  Ive gotten some suspisions that there is a problem with my H-Alpha modded D5500.   I know 100% certain that my D5300 is H-Alpha moddified so why the difference in these two histograms?  Same sensor camera and such.   Settings the same in camera as far as I can tell.  Does this have something to do with white balance?   People who process my images dont complain about my D5300 however there is a strong red cast to the D5500.      

Thanks for any advice on the 2nd question.  

Screenshot (2).png

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I just accidentally deleted the screenshot from the D5500 so I dont have anything to compare it to.   Sorry.    Basically the histgram on the D5500 shows (fatter) spikes in the colors and blue is visible.  

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42 minutes ago, skycamper said:

Im trying to view my images with BYN without the camera connected. The photos are in my computer but how do I view them and the histogram data from when I was taking the photos. I essentially want to view them as I view them when they were taken. Im wanting to scroll through the photos checking how the histogram changes as the moon comes up. 

Thanks

Abraham

With the premium edition you can.

You can drag&drop any images in the picture area in BYE/BYN and it will load the images.

You even have to have the camera connected for this as you can do this in preview mode as well.

Regards,

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23 minutes ago, astroman133 said:

When a DSLR is modified for AP, there is a choice of replacement glass.

It is possible that the 2 cameras have different class in front of the sensor. Another possibility is that camera settings, like White Balance, are different and cause a different color cast.

Awesome I'll try that, if the glasses are different will they still be able to be stacked together and Blended?   I guess that was my whole point of dual Imaging LOL

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I would make sure that all the other settings are sync'ed between the cameras, before assuming that they were modded differently. I would also re-visit the web site where you had the mods done to see what their options for replacement glass are. I am pretty sure that clear glass is one option. There may be another option for refractors that cuts off UV and IR that is outside the visible range, but that the camera sensor could pick up, but may not be in focus.

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57 minutes ago, astroman133 said:

I would make sure that all the other settings are sync'ed between the cameras, before assuming that they were modded differently. I would also re-visit the web site where you had the mods done to see what their options for replacement glass are. I am pretty sure that clear glass is one option. There may be another option for refractors that cuts off UV and IR that is outside the visible range, but that the camera sensor could pick up, but may not be in focus.

I did the drag and drop in BYN and basically the histogram is shoved about %25 more the right and the color signal is larger in the D5500.    Question:  does a menu option in the camera not specifically seen in the BYN control panel get applied to the photos from that camera?   I'll pull both cameras and make sure the settings are the same and then shoot custom white balances for my sky conditions as well.    

 

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2 hours ago, skycamper said:

I did the drag and drop in BYN and basically the histogram is shoved about %25 more the right and the color signal is larger in the D5500.    Question:  does a menu option in the camera not specifically seen in the BYN control panel get applied to the photos from that camera?   I'll pull both cameras and make sure the settings are the same and then shoot custom white balances for my sky conditions as well.    

 

No, it's the same.

This histogram in BYN will be 100% identical on an image taken with BYN versus the same image being drag&drop in BYN for viewing.  If the histogram is different you are using 2 different images.  There is only one code in BYN that calculates the histogram.

Regards,

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The D5300 and D5500 are different Generations of the same basic Sensor, as well as different versions of Firmware running on the Expeed4 Processor.

It is quite possible that the Firmware initializes the Sensor in a slightly different "Upgraded" Mode, which could then bias the resulting Low-Light Long Exposures that serve for AP Imaging in a different fashion than for the much shorter Daytime Exposures.

It is also quite possible, like Rick indicated above, that you are seeing the results of 2x different types of Replacement AR Window Glass.  And it is possible that one augments the other to produce your result.

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14 minutes ago, s3igell said:

The D5300 and D5500 are different Generations of the same basic Sensor, as well as different versions of Firmware running on the Expeed4 Processor.

It is quite possible that the Firmware initializes the Sensor in a slightly different "Upgraded" Mode, which could then bias the resulting Low-Light Long Exposures that serve for AP Imaging in a different fashion than for the much shorter Daytime Exposures.

It is also quite possible, like Rick indicated above, that you are seeing the results of 2x different types of Replacement AR Window Glass.  And it is possible that one augments the other to produce your result.

The seller of the D5500 camera said something very similar to me  and that the D5500 is newer and even though sensor is the same size that it's not completely the same sensor.   I'll basically need to try again , shoot better calibration frames for each camera and make certain the settings are the same. The two cameras were not shooting the same focal length 735mm vs 800mm... deep Sky Stacker doesn't do scaling so I need to shoot at the same focal length.  I don't process my own images because it's not my thing and I don't know how so I at least need to be able to stack images into something manageable for others to grab hold of and process for me.  Thanks for all the help guys.

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