Question
- ivangallego24
- Posts: 54
- Joined: Thu Nov 15, 2018 11:20 am
- Location: España
Question
It is normal that the 40x and 100x objectives can not be unscrewed?
Re: Question
Some context would be helpful ...
But in the broad context: No it's not normal
MichaelG.
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Edit: Is it the same problem that we discussed before ?
viewtopic.php?f=5&t=6897
But in the broad context: No it's not normal
MichaelG.
.
.
Edit: Is it the same problem that we discussed before ?
viewtopic.php?f=5&t=6897
Too many 'projects'
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- Posts: 6325
- Joined: Fri May 15, 2015 12:15 am
Re: Question
I remember your question from a while ago. Did you try the method I suggested before? It always works, due to the leverage the pliers or vice grips supply. If you cannot source a narrow leather strap to wrap around the objective base, cut one from an old pair of shoes, work boots or other item. Straps from an old camera case or other leather bag or purse work . It just needs to be at least 2mm thick and about a cm. wide but top grain leather only, not suede.
Some items made from thick dense rubber will work too , such as those flat bungee straps but less dense rubber can shred easier than leather and allow the jaws of the tool to dig into the metal, something you are trying to avoid.
One of the pitfalls of off the shelf Chinese equipment, microscopes included , is that they save quite a bit of money in production by lowering the specifications of the metals used and slackening the tolerances of the fittings used. Threads in many cases are, loosely and quickly cut, on or into coarse material with uneven hardness and lots of impurities. This is a recipe for threads that cross thread easily, bind easily and once tightened, resist loosening. Sometimes the threads(especially with brass or aluminum) will pull slightly in the process of tightening, making the fit during the action of loosening very tight.
Some items made from thick dense rubber will work too , such as those flat bungee straps but less dense rubber can shred easier than leather and allow the jaws of the tool to dig into the metal, something you are trying to avoid.
One of the pitfalls of off the shelf Chinese equipment, microscopes included , is that they save quite a bit of money in production by lowering the specifications of the metals used and slackening the tolerances of the fittings used. Threads in many cases are, loosely and quickly cut, on or into coarse material with uneven hardness and lots of impurities. This is a recipe for threads that cross thread easily, bind easily and once tightened, resist loosening. Sometimes the threads(especially with brass or aluminum) will pull slightly in the process of tightening, making the fit during the action of loosening very tight.
- ivangallego24
- Posts: 54
- Joined: Thu Nov 15, 2018 11:20 am
- Location: España
Re: Question
That is already solved and I could put the objectives correctly my question now is if the objective of 40x and 100x can be removed in case some day I have to change them for others apparently do not take off in fact on the page where I buy the microscope I saw that he said "the objective of 40x and 100x are embedded in the head or something like that"
Re: Question
That is most unusual, Ivan ... Could you please give a link to the page ?ivangallego24 wrote:... in fact on the page where I buy the microscope I saw that he said "the objective of 40x and 100x are embedded in the head or something like that"
MichaelG.
Too many 'projects'
Re: Question
"Embeded" is an exaggerated term for objectives that are reversibly installed in a nosepiece. IMHO, such a term in a description page would be unsuitable.ivangallego24 wrote:That is already solved and I could put the objectives correctly my question now is if the objective of 40x and 100x can be removed in case some day I have to change them for others apparently do not take off in fact on the page where I buy the microscope I saw that he said "the objective of 40x and 100x are embedded in the head or something like that"
- ivangallego24
- Posts: 54
- Joined: Thu Nov 15, 2018 11:20 am
- Location: España
Re: Question
Sorry I was wrong I wanted to say integrated not embedded, here is the link
https://www.amaina.com/microscopios/248 ... 3-pli.html
https://www.amaina.com/microscopios/248 ... 3-pli.html
Re: Question
Thanks for the link ... I have just run a DeepL translation on the offending paragraph, and get this:ivangallego24 wrote:Sorry I was wrong I wanted to say integrated not embedded, here is the link
https://www.amaina.com/microscopios/248 ... 3-pli.html
'retractable' is good [= spring loaded], but I do worry about 'integrated'The 40x and 100x magnification objectives are retractable and integrated in the head, the latter being a 100x oil immersion.
MichaelG.
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https://www.deepl.com
Too many 'projects'
Re: Question
The video shows that the microscope is available with a selection of objectives so I assume that the word "integrados" is marketing hyperbole.
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)
Olympus E-P2 (Micro Four Thirds Camera)
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Re: Question
Interesting that Euromex are made in the Netherlands. There must be a Dutch law that if a certain amount of the assembly is done locally, then it qualifies as domestic made. We have coffee that is product of Canada, here.
The Euromex line looks pretty decent in the context of Chinese microscopes. Some of the models are so close to being identical to others with different branding, as to be identical. One is basically the same as a Zeiss Primostar.
Optika , makes the claim that the microscopes are made in Italy. It's a similar situation. The components are sourced in China.
The word integrated , most likely refers to the fact that they are integrated in the nosepiece with the other objectives. If there was a reference to the objectives being permanently fitted into the nosepiece, the translation would come out to something like " the objectives are securely fitted into the nosepiece for permanent alignment" because that would be the only reason why objectives would need to be fixed in a nosepiece.
I'm pretty sure your objectives all thread out and can be threaded out. If you are unsure, why don't you contact Euromex and ask them. I would imagine they have customer support.
The Euromex line looks pretty decent in the context of Chinese microscopes. Some of the models are so close to being identical to others with different branding, as to be identical. One is basically the same as a Zeiss Primostar.
Optika , makes the claim that the microscopes are made in Italy. It's a similar situation. The components are sourced in China.
The word integrated , most likely refers to the fact that they are integrated in the nosepiece with the other objectives. If there was a reference to the objectives being permanently fitted into the nosepiece, the translation would come out to something like " the objectives are securely fitted into the nosepiece for permanent alignment" because that would be the only reason why objectives would need to be fixed in a nosepiece.
I'm pretty sure your objectives all thread out and can be threaded out. If you are unsure, why don't you contact Euromex and ask them. I would imagine they have customer support.