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Simple answer to tube to sensor

 
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kpassaur



Joined: 24 Mar 2015
Posts: 22

PostPosted: Thu Dec 06, 2018 5:23 am    Post subject: Simple answer to tube to sensor Reply with quote

I have read quite a few pages and now I am confused. I have a Nikon Plan 10x and a Raynox 150 and 250. I have read different magnification amounts people get from them depending upon how they are setup. Should I fix the adapter (tube) at a given distance from the sensor and then move the objective to change the magnification or does it really matter. I am not nitpicking in other words, corner sharpness is not a top priority as I crop and they are gone. If it does matter a lot I would like to know so I can proceed correctly.
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ChrisR
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Joined: 14 Mar 2009
Posts: 8364
Location: Near London, UK

PostPosted: Thu Dec 06, 2018 7:26 am    Post subject: Reply with quote

This belongs in a differen section so we'll move it in due course.

But yes - put the raynox on a tube on the camera so it focuses at infinity. Then put the objective on the front. You can't change the magnification without changing lenses.
You can't focus either, you have to move the setup relative to the subject.
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Lou Jost



Joined: 04 Sep 2015
Posts: 3618
Location: Ecuador

PostPosted: Thu Dec 06, 2018 7:40 am    Post subject: Reply with quote

I think with the Raynox, Robert's results show that you do have limited ability to zoom (and also to focus) by changing tube length slightly. Best to try it yourself and see if the quality is acceptable to you.
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ChrisR
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Joined: 14 Mar 2009
Posts: 8364
Location: Near London, UK

PostPosted: Thu Dec 06, 2018 8:16 am    Post subject: Reply with quote

A little, yes, and you can focus ny focusing a camera lens used as a tube lens, but I suggest that's only really useful for tethering, as kpassaur has a Stackshot.
It's covered again in another thread in a diffferent section...
I'll move this to be with it.
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