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The same issue. (solved)
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All Ex



Joined: 20 Jul 2015
Posts: 252
Location: Greece Thessaloniki

PostPosted: Tue Apr 25, 2017 10:00 am    Post subject: Reply with quote

I`ll have to do all that testing.
I`m not using any long exposure shots on getting the stack. I`m only woring that if there is an issue with light leaks through the view finder the fact that I perform the all shooting incide a close "box" enhances the ugly result.

I`ll come back with my results.
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keks



Joined: 13 Mar 2011
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Location: Austria

PostPosted: Tue Apr 25, 2017 10:31 am    Post subject: Reply with quote

All Ex, if you got your problem with a stripped BD Plan you definitely have to close the light path between the inner and outer shell because definitely a LOT of light would enter there.
If the problem also occurs with a non-stripped objective I can't help.
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All Ex



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PostPosted: Tue Apr 25, 2017 10:41 am    Post subject: Reply with quote

The poblem Keks occours in a Nikon E Plan 4X NA 0.1 ,a Nikon Plan 10X NA 0.25 and a Nikon BD 20X CF ELWD.
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rjlittlefield
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PostPosted: Tue Apr 25, 2017 12:21 pm    Post subject: Reply with quote

Is this mist always visible, or does it appear only in stacked results that have been saved to file?

If you have the second case (mist visible only in stacked results saved to file), then probably your problem is that you have selected "Retain extended dynamic range", in the file saving options of Zerene Stacker. Uncheck that option and the problem will disappear.

If you have the first case (mist always visible), then "Retain extended dynamic range" is not your problem.

--Rik
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All Ex



Joined: 20 Jul 2015
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Location: Greece Thessaloniki

PostPosted: Tue Apr 25, 2017 12:59 pm    Post subject: RRetain Reply with quote

Thank you Rik, I`ll try your suggestion tomorow and I`ll post the results.

Now that I finished a job that I was doing I looked and :
Unfortunately the "mist" is sowing in all the files, and the "Retain extended range" is unchecked.
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All Ex



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PostPosted: Wed Apr 26, 2017 7:30 am    Post subject: Reply with quote

Today I performed several stackings with the following results:



It was taken with a small piece of wood wich I glued on a nidle.

  • In the second I plased a cloth around the tube lens
  • In the third I plased black tape on my tube
  • In the last one I redused the step as to give me from appr. 30, ten steps more


All the above with the eyepiece shutter closed.

I must mention that in the beggining I looked inside the tube and with the aid of a torsch light it does not seem light to penetrate in the tube.

It doesn`t seem the write example (the piece of wood) but it sows to me that the problem is present.

Any opinions?
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naturepics43



Joined: 11 May 2015
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Location: Hocking County, Ohio , USA

PostPosted: Wed Apr 26, 2017 8:37 am    Post subject: Reply with quote

All Ex wrote:
I`ll have to do all that testing.
I`m not using any long exposure shots on getting the stack. I`m only woring that if there is an issue with light leaks through the view finder the fact that I perform the all shooting incide a close "box" enhances the ugly result.


You mention that you "shoot inside a closed box". Could you be getting reflections from the shiny surface of the clear plastic base and/or reflections from the interior of the box?
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All Ex



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PostPosted: Wed Apr 26, 2017 9:00 am    Post subject: Reply with quote

My shoting box serves the perpose to eliminate any reflections, thus it is all covered with flocking paper except from a small "window" behind the specimen in wich I put, on its outer side, a colored card in an angle of 45 degrees, to provide background color.
It only has a wite silling that it is placed behind the objective, in the frond of it is floking paper too.
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All Ex



Joined: 20 Jul 2015
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PostPosted: Sun Apr 30, 2017 6:26 am    Post subject: Reply with quote

Finally today after so many effort and disappointment the first light switched on for me.
It seemed that the creator of the fleur was the "dark box:" I was using.
Meanwhile today the cable that connects the stack shot to my laptop could not perform the connection, thus for the first time I performed the stack directly from the controller, I think I found the solution :



Nikon D800, Nikon 200mm Ai MF Nikon 20X NA 0.25 ELWD on the same wooden fracture.
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JH



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PostPosted: Sun Apr 30, 2017 6:48 am    Post subject: Reply with quote

Very Happy
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johan



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PostPosted: Sun Apr 30, 2017 6:52 am    Post subject: Reply with quote

excellent!!
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All Ex



Joined: 20 Jul 2015
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PostPosted: Sun Apr 30, 2017 8:32 am    Post subject: Reply with quote

Thank you all.
I`ll now wait for insects, and I eventually try my first projects.
Thanks again...


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ChrisR
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PostPosted: Wed May 03, 2017 2:51 pm    Post subject: Reply with quote

Great, but what "dark box"?
Have you shown us your dark box somewhere ?
Confused
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All Ex



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PostPosted: Wed May 03, 2017 9:51 pm    Post subject: Reply with quote

I'll take and post some photos of it.
Now that I'm getting somewhere I'm facing issues with my stack shot..
Brick wall
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All Ex



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PostPosted: Fri May 05, 2017 12:42 am    Post subject: Reply with quote

Here are some photos from the "black box" I was using.





You can see the side covered with flocking paper. The back side is covered with black cartone.

And there is a detail of the outside, placed in 45 degrees bacikground.


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