Machined tube for Raynox dcr-150 tube lens and Mitutoyo M-plan 10x. Finally ready !

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leanderborg220
Posts: 58
Joined: Tue Sep 29, 2020 7:53 am

Machined tube for Raynox dcr-150 tube lens and Mitutoyo M-plan 10x. Finally ready !

Post by leanderborg220 »

This thing is finally ready at last ! #-o
https://www.youtube.com/watch?v=iKzo5BMZpPg

I will also have another tube for finite objective lenses.

Sym P. le
Posts: 246
Joined: Thu Jul 04, 2019 9:53 pm
Location: BC

Re: Machined tube for Raynox dcr-150 tube lens and Mitutoyo M-plan 10x. Finally ready !

Post by Sym P. le »

Is there not adjustment for precise focus of the tube lens?

leanderborg220
Posts: 58
Joined: Tue Sep 29, 2020 7:53 am

Re: Machined tube for Raynox dcr-150 tube lens and Mitutoyo M-plan 10x. Finally ready !

Post by leanderborg220 »

Sym P. le wrote:
Thu Mar 18, 2021 8:46 pm
Is there not adjustment for precise focus of the tube lens?
not really. It is adjustable using extension rig set shown. from aprox 145mm to 205mm from sensor to front of tube lens.
With the reverse dcr-150 setup. shorter length is sharper with less magnification
208mm gives more magnification 10x to be preciise but is less sharp.
As far as I know from the research I`v done. There is no sweet spot and fine adjustment is not a must, extension set is fine to play around with in finding a good balance betwwen magnifiaction and sharpness.

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