Optiphot with infinity objectives
Moderators: rjlittlefield, ChrisR, Chris S., Pau
Optiphot with infinity objectives
Attempt to use infinity objectives on the Optiphot:
With Sigma LSA
With Surplusshed 125mm achromat. I liked initial results with this tube lens (no more testing done yet), not sure how it compares with Raynox 250. It is compact & cheap, fits well to the printed part.
Photo with SS 125mm achromat:
http://www.photomacrography.net/forum/v ... 605#246605
With Sigma LSA
With Surplusshed 125mm achromat. I liked initial results with this tube lens (no more testing done yet), not sure how it compares with Raynox 250. It is compact & cheap, fits well to the printed part.
Photo with SS 125mm achromat:
http://www.photomacrography.net/forum/v ... 605#246605
Last edited by Saul on Sun Apr 21, 2019 8:01 pm, edited 2 times in total.
Luckily, with head (removed original tube, pls. see the photo), distance between objective & TL is ~5cm and between TL & sensor is ~125cm. Did not try yet to play with smaller distance or set up to the infinity. And, honestly, there is not too much room to play - if I'll make different 3d adapter, I could gain max 3mm. Unless I remove head, in this case I can go closer.JohnyM wrote:How do you handle tube lenght with 125mm and trinoc?
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Saul, this is again a most interesting project...and a well done one!
I'm very curious about your results, as I also have the Nikon CFI 20/0.75 and Sigma LSA, but the only adaptation I've done is putting the LSA on bellows in the place of the microscope head.
- Are the eyepieces parfocal with the camera?
- Does the objective really work as infinite corrected?*
- If you have another CFI 60 objective, is it parfocal with the 20/0.75?
* With your last setup outside the microscope frame, with the microscope head + LSA alone you would be able to see focused things at infinite like with binoculars, I guess
Thanks for sharing your projects
I'm very curious about your results, as I also have the Nikon CFI 20/0.75 and Sigma LSA, but the only adaptation I've done is putting the LSA on bellows in the place of the microscope head.
- Are the eyepieces parfocal with the camera?
- Does the objective really work as infinite corrected?*
- If you have another CFI 60 objective, is it parfocal with the 20/0.75?
* With your last setup outside the microscope frame, with the microscope head + LSA alone you would be able to see focused things at infinite like with binoculars, I guess
Thanks for sharing your projects
Pau
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That would be interesting to find out. My Optiphot head has a system of negative and positive tube lenses https://www.photomacrography.net/forum/ ... p?p=206784Pau wrote: - Are the eyepieces parfocal with the camera?
- Does the objective really work as infinite corrected?
It would be interesting to know how this adds up.
Regards, Ichty
Thanks Pau !Pau wrote:Saul, this is again a most interesting project...and a well done one!
No. If honestly - I did not try to get parfocality, but it could be done (it is almost there)I'm very curious about your results, as I also have the Nikon CFI 20/0.75 and Sigma LSA, but the only adaptation I've done is putting the LSA on bellows in the place of the microscope head.
- Are the eyepieces parfocal with the camera?
Yes. Tested separately. And distances matching also- Does the objective really work as infinite corrected?*
I have Nikon CF Plan 20x 0.46. And it is not parfocal with 20/0.75. Did not try with Mitu 20x .- If you have another CFI 60 objective, is it parfocal with the 20/0.75?
Thanks Saul,
Would be interesting to try it...and later to inform us- Are the eyepieces parfocal with the camera?
No. If honestly - I did not try to get parfocality, but it could be done (it is almost there)
Is your CF plan 20X old style RMS 45mm? If so it can't be parfocal at least without a 15mm extension ring, the same but opposite with the Mitutoyo that is much longer (but this is trivial)I have Nikon CF Plan 20x 0.46. And it is not parfocal with 20/0.75. Did not try with Mitu 20x .- If you have another CFI 60 objective, is it parfocal with the 20/0.75?
Pau
Very interesting, thanks for posting. I have very little experience with 3D printing. What material do you recommend if I want to print a reliable part for this type of use?Saul wrote:One more setup:
Best regards
Jörgen Hellberg
Jörgen Hellberg, my webbsite www.hellberg.photo
Thanks Saul
It is always interesting to follow your posts.
Best regards
Jörgen Hellberg
It is always interesting to follow your posts.
Best regards
Jörgen Hellberg
Jörgen Hellberg, my webbsite www.hellberg.photo