Search found 161 matches
- Tue Aug 04, 2020 7:19 pm
- Forum: Microscopes and optics
- Topic: Photo tube adapter
- Replies: 34
- Views: 12429
Re: Photo tube adapter
This doesn't give me much confidence. The text on Amscope's own product page is a little more reassuring: https://www.amscope.com/adapter-converting-c-mount-to-23mm-and-or-30mm-photo-port.html It appears that there is , as one might hope, a c-female thread in the adapter ... cunningly hidden in the...
- Tue Aug 04, 2020 6:18 pm
- Forum: Microscopes and optics
- Topic: Photo tube adapter
- Replies: 34
- Views: 12429
Re: Photo tube adapter
Labcam says, "Your LabCam purchase already includes the 30mm and 23.2mm adapters". Is the photo eyepiece not 23.2? Other sizes would be unusual. Ah, I see what you mean. The Motic tube is indeed 23.2mm dia but is 9cm in length. Would inserting the LabCam in this tube result in a correct size image?
- Tue Aug 04, 2020 6:14 pm
- Forum: Microscopes and optics
- Topic: Photo tube adapter
- Replies: 34
- Views: 12429
Re: Photo tube adapter
Please forgive my ignorance, David ... but I don’t understand this statement on the LabCam web-page: Precision: Attaches in 10 seconds to your iPhone and microscope by simply inserting into c-mount or eye-piece slot. How to they contrive to ‘insert’ the lens into a c-mount, when the male c-thread i...
- Tue Aug 04, 2020 4:41 pm
- Forum: Microscopes and optics
- Topic: Photo tube adapter
- Replies: 34
- Views: 12429
Re: Photo tube adapter
Thanks, LM's solution is 169 euros which is more than I want to spend on an adapter with no optics...MichaelG. wrote: ↑Tue Aug 04, 2020 12:15 pmI’m not familiar with either Motic or Olympus version, David ... but this looks a useful place to start your quest:
https://www.lmscope.com/en/olympus_BX_serie_en.html
MichaelG.
- Tue Aug 04, 2020 4:34 pm
- Forum: Microscopes and optics
- Topic: Photo tube adapter
- Replies: 34
- Views: 12429
Re: Photo tube adapter
Motic sells t-mount photo tubes for your microscope. The adapter accepts a photo eyepiece designed to project the image to a camera sensor. That is likely the same 30mm size as the normal eyepieces. You should confirm with your dealer. Documentation isn’t great, but if it is like other photo tubes ...
- Tue Aug 04, 2020 7:59 am
- Forum: Microscopes and optics
- Topic: Photo tube adapter
- Replies: 34
- Views: 12429
Photo tube adapter
This is the photo tube mount on a Motic BA310. It appears to be the same as Olympus BX.
What is this type of mount called?
I'm looking to mount a LabCam so need an adapter that will accept a 30mm eyepiece tube but not sure what to search for?
What is this type of mount called?
I'm looking to mount a LabCam so need an adapter that will accept a 30mm eyepiece tube but not sure what to search for?
- Fri Jul 31, 2020 7:16 pm
- Forum: Camera systems and imaging
- Topic: Help with iPhone setup on ‘70s Leitz Dialux?
- Replies: 18
- Views: 6590
- Fri Jul 31, 2020 6:24 am
- Forum: Camera systems and imaging
- Topic: Help with iPhone setup on ‘70s Leitz Dialux?
- Replies: 18
- Views: 6590
Re: Help with iPhone setup on ‘70s Leitz Dialux?
I struggled with the Gosky type of adapter, though I'm aware that many have had more luck. The main problem I found was the difficulty of adjusting along the third axis (Z-axis) I recently discovered the Celestron NEXYZ adapter, and I am very happy with it. I have never tried using it on the trinocu...
- Thu Jul 30, 2020 12:17 pm
- Forum: My microscope
- Topic: Olympus BH-2 BHS
- Replies: 10
- Views: 5431
- Wed Jul 29, 2020 6:00 pm
- Forum: My microscope
- Topic: Olympus BH-2 BHS
- Replies: 10
- Views: 5431
Re: Olympus BH-2 BHS
Wow it's really hard to find competent service people for anything these days. You're very fortunate to have found this one. Can you imaging and auto mechanic taking the time to send a video and go over what was done to your car. I can't, especially not for a repair bill of less than £200. Looks li...
- Wed Jul 29, 2020 12:56 pm
- Forum: My microscope
- Topic: Olympus BH-2 BHS
- Replies: 10
- Views: 5431
Re: Olympus BH-2 BHS
That should be a pleasure to use now. Congratulations I would be interested to know what a service like that cost if you don't mind saying. It might be a practical step to factor in a 'service' on to the purchase price of a used microscope when it is available. I paid £168 including the cost of ret...
- Wed Jul 29, 2020 10:38 am
- Forum: My microscope
- Topic: Olympus BH-2 BHS
- Replies: 10
- Views: 5431
Olympus BH-2 BHS
A few months ago I purchased a BHS on eBay. It arrived in generally good condition but with some issues. After cleaning it up and trying to fix the problems myself with only partial success, I decided to send it off for a professional service. After completing the job, the engineer sent me this vide...
- Mon Jul 27, 2020 2:33 pm
- Forum: Microscopes and optics
- Topic: Fixed Köhler
- Replies: 52
- Views: 17806
Re: Fixed Köhler
The full text mentions that both condensers are used in conjunction with a field diaphragm that can be adjusted 'in all directions'.
The Olympus models mentioned in the OP do not appear to have an adjustable field diaphragm.
The Olympus models mentioned in the OP do not appear to have an adjustable field diaphragm.
- Fri Jul 24, 2020 4:42 pm
- Forum: Microscopes and optics
- Topic: DSLR vs iPhone
- Replies: 18
- Views: 5819
Re: DSLR vs iPhone
In fact, when the iphone image of the stage micrometer is enlarged, considerable CA is visible edge to edge including the center, again supporting that the camera itself is not the source of the problem. I seemed reasonable to me for a small phone sensor but perhaps I'm easily pleased! Do you have ...
- Fri Jul 24, 2020 3:30 pm
- Forum: Microscopes and optics
- Topic: DSLR vs iPhone
- Replies: 18
- Views: 5819
Re: DSLR vs iPhone
Firstly, your trinocular tube image is not only mal-corrected it is mis-aligned. The axis is shifted towards 4 o'clock. This is definitely an optical mis-match. The photo tube should provide a nicely corrected image to your awaiting sensor. Case closed. You refer to a "dealer". They obviously made ...
- Fri Jul 24, 2020 2:24 pm
- Forum: Microscopes and optics
- Topic: DSLR vs iPhone
- Replies: 18
- Views: 5819
- Fri Jul 24, 2020 2:03 pm
- Forum: Microscopes and optics
- Topic: DSLR vs iPhone
- Replies: 18
- Views: 5819
Re: DSLR vs iPhone
To remove any confusion from the sample slide, I repeated the test using a calibration slide. The iPhone XS (second image) is much as expected from a phone sensor, but the Canon DSLR (first image) is truly awful... https://i.ibb.co/XLMsmTb/Screen-Shot-2020-07-24-at-14-58-35.png https://i.ibb.co/MGDp...
- Fri Jul 24, 2020 1:46 pm
- Forum: Microscopes and optics
- Topic: DSLR vs iPhone
- Replies: 18
- Views: 5819
Re: DSLR vs iPhone
Ouch ... that’s very disappointing, David First thought is that the photo eyepiece must be ‘correcting’ for chromatic aberration that wasn’t there in the first place ! ... if you see what I mean. MichaelG. . Edit: I’ve just checked the Motic site, and confirmed that your ‘scope is ‘ CCIS ’ .. is th...
- Fri Jul 24, 2020 12:45 pm
- Forum: Microscopes and optics
- Topic: DSLR vs iPhone
- Replies: 18
- Views: 5819
DSLR vs iPhone
I'm looking at the results from my Canon EOS 5D MkII full frame camera attached to the trinocular tube a Motic BA310 using Motic photo tube & photo eyepiece and seeing more than expected Chromatic aberration in the form of yellow fringeing towards the edge of the frame. The first image is a screensh...
- Fri Jul 10, 2020 8:45 pm
- Forum: Microscopes and optics
- Topic: Fixed Köhler
- Replies: 52
- Views: 17806
Re: Fixed Köhler
Kirby, thank you for posting this. If it were the case that setting Kohler illumination is fully automated then that would indeed be a convenience. But...would you/your friend agree that without a field diaphragm, the flare and contrast cannot be optimised for each objective, according to the Kohler...
- Thu Jul 09, 2020 7:40 pm
- Forum: Microscopes and optics
- Topic: Fixed Köhler
- Replies: 52
- Views: 17806
- Thu Jul 09, 2020 6:10 pm
- Forum: Microscopes and optics
- Topic: Fixed Köhler
- Replies: 52
- Views: 17806
Re: Fixed Köhler
I meant adopting the term 'fixed Kohler', not referring to the technology.
- Thu Jul 09, 2020 4:46 pm
- Forum: Microscopes and optics
- Topic: Fixed Köhler
- Replies: 52
- Views: 17806
- Thu Jul 09, 2020 4:41 pm
- Forum: Microscopes and optics
- Topic: Fixed Köhler
- Replies: 52
- Views: 17806
Re: Fixed Köhler
As above, the field diaphragm is set to be just outside the field of view for whatever objective is in use, not normally wide open.
The principle is the same as the lens hoods, 'barn doors', bits of polystyrene etc. that pre-smartphone photographers used to reduce flare and maintain contrast.
The principle is the same as the lens hoods, 'barn doors', bits of polystyrene etc. that pre-smartphone photographers used to reduce flare and maintain contrast.
- Thu Jul 09, 2020 3:38 pm
- Forum: Microscopes and optics
- Topic: Fixed Köhler
- Replies: 52
- Views: 17806
Re: Fixed Köhler
I understand that the lamp is pre-centered, but my understanding of Kohler is that a field diaphragm is essential to match the spread of illumination to the objective in use... https://www.olympus-lifescience.com/en/microscope-resource/primer/anatomy/kohler/ If a field diaphragm is an essential part...
- Wed Jul 08, 2020 5:55 pm
- Forum: Microscopes and optics
- Topic: Euromex or Motic?
- Replies: 66
- Views: 20853
Re: Euromex or Motic?
Hi David I thought I'd replied to this earlier but maybe I didn't 'submit', d'uh. Anyway, I'd asked you what Motic objectives you have/had? Are they 'EC' Plan achromats? They do 10x/22mm UC eyepieces and UC Plan objectives (optional Phase) for the Panthera. I asked Motic what the difference is. The...
- Wed Jul 08, 2020 6:18 am
- Forum: Microscopes and optics
- Topic: Euromex or Motic?
- Replies: 66
- Views: 20853
Re: Euromex or Motic?
I had a Brunel microscope with plan objectives and decided to upgrade to a Motic BA310 I found that the change to 30mm eyepieces was a huge improvement in viewing comfort, but the Motic ojectives were no better than the generic Brunel objectives and in a direct comparison actually show more chromati...
- Sun Jul 05, 2020 1:39 pm
- Forum: Microscopes and optics
- Topic: Olympus objectives
- Replies: 3
- Views: 2276
Re: Olympus objectives
As above - Plan is UIS1 and Plan N is UIS2 - a coating difference I believe. I think the 'CN' designated those fitted to the CX range, the 'just N' for the BX series. I've compared both 'CN' and 'just N' on the same 'scope (BX40 and BX50) and there's absolutely no difference either by eyepiece of c...
- Sat Jul 04, 2020 8:34 pm
- Forum: Microscopes and optics
- Topic: Olympus objectives
- Replies: 3
- Views: 2276
Olympus objectives
Other than price, what is the difference between Olympus PlanC N objectives and the Plan N objectives?
https://www.astroshop.eu/for-microscope ... ve/p,49915
https://www.astroshop.eu/for-microscope ... iv/p,49927
https://www.astroshop.eu/for-microscope ... ve/p,49915
https://www.astroshop.eu/for-microscope ... iv/p,49927
- Sat Jul 04, 2020 8:27 pm
- Forum: Pictures and Videos
- Topic: Stomoxys with ticks?
- Replies: 6
- Views: 2453
Re: Stomoxys with ticks?
As far as I know, ticks live on the blood of mammals.