Hi Rik

More than helpful being an objective analysis from the perspective of my question.

I feel rather embarrassed having mooted the suggestion !!

BR


John

Well Rik I could not have expected you to run a test !! Thank you. I must admit that I was not sure hence the question and I look forward to hearing from your later somewhere on the Forum.

REgards

John

Whilst we have not actually "met" Chris I am one of those folk where devotion does not yield results. I raised the "problem" with my optician in passing (whilst being examined for a large floater and potential retinal detachment) and she was not surprised given that I have a significant astigmatism ...

The comfortable solution is to obtain a stereo viewer, such as https://www.berezin.com/3d/wheatstone.htm . These devices contain mirrors that align the two separate images so that they overlap naturally as presented to your eyes. When properly adjusted, looking at stereo pairs through the viewers i...

Thank you very much for answering all of my naive questions together with your patience.

I have some parts to acquire and then I will have some fun to experiment with your system.

Kind Regards

John

Thanks. I am not sure that I asked one of my questions properly. Let me try again. Thank you for your patience with me. I think you have answered this but may be I do not understand the information you have given. If I am using a 4x infinity objective where would you place the Raynox in your system ...

Thanks Frederic. I am beginning to appreciate what you are explaining and the issues you are seeking to address in your system. I think that the question about stacking has led you to miss my repeat questions. I will repeat them in summary if I may for you. At what point is the tube lens inserted in...

Hi Frederic I have been using Google translator on the geoforum.fr link you posted to read some of the other posts. If the translation is correct then I understand that you are able to complete a stack of several hundred images in a short time without motorisation of the macro rail. Is that correct?...

Dear Frederic Thank you for the link to LibreOffice Fresh to open the .ods file. I am summarising below your helpful answers to my many questions so that they can be seen more easily to those who follow this thread maybe now and later. Q. Is there another 42mm tube after the filter? A. No for sensor...

Camera has 42 mm tube. 58 mm tube contain lens tube (system 42 mm inside 58 mm system). Hi Frederic Thank you for the additional information. I still cannot find how to open the .ods file. And I still do not fully understand the order; "sensor + 42 mm + filter / 58mm and 42 mm lens tube / diaphragm...

Dear Frederic I had not seen your "budget pdf" until after I had posted above. I have one Lab Jack already and a micrometer driven sample carrier although I do not have a rotary scale on it to measure movements although this can be provided from a printed scale I am sure. Where do the 58mm tubes go ...

Dear Frederic According to Excel your .ods file cannot be opened because it is password protected. Can you post an unprotected file please? This is my materials list that I have available. Canon 650D 18.0-megapixel sensor Raynox 250 and 150 42mm extension tubes both auto and manual Nikon BID DIC 210...

Dear Frederic I need some help in understanding how I must build a direct mirror of your system because I am not either good at physics or mathematics. Nevertheless I am interested in trying your system myself exactly as you use it yourself. But I will need more information please in the practical s...

Hi Charles Many thanks for the specific clarifications and confirmation together with a useful overview. It was made known by my family to a close relative that I might like flash to add to my photographic macro interests. As a thoughtful seasonal gift from a non technical relative I now have on the...

Charles, do Rebel type bodies allow for mirror lock up? Does this mean that it is enabled for all exposures until disabled? Did I misinterpret this the first time round? "Mirror lockup is enabled by setting [5: Mirror lockup] to [1: Enable] in the [54: Custom Functions (C.Fn)] (p.296)." Many thanks...