Search found 16 matches
- Thu Aug 31, 2023 2:22 am
- Forum: Microscopes and optics
- Topic: Clones of Olympus MPlan 10x Metallurgical Objective (Industrial)
- Replies: 1
- Views: 7519
Clones of Olympus MPlan 10x Metallurgical Objective (Industrial)
I am in the lookout for cheaper clones (preferably Asian) to Industrial Metallurgical Olympus MPLN10X objective lens (45mm parfocality, 180mm tube lens compatible, Working distance > 8mm). https://www.olympus-lifescience.com/en/objective-finder/ I have tried at least 5 different companies so far and...
- Thu Aug 31, 2023 2:00 am
- Forum: Microscopes and optics
- Topic: Metallurgical (not life-science) 2x 45mm parfocal 180mm tube objective lens
- Replies: 2
- Views: 3150
Metallurgical (not life-science) 2x 45mm parfocal 180mm tube objective lens
Hi,
I am desperately looking for a material science/industrial upright microscopy objective lens with the following specs:
type: infinity
magnification: 2
tube lens focal length = 180mm
Please do suggest your options.
Cheers!
I am desperately looking for a material science/industrial upright microscopy objective lens with the following specs:
type: infinity
magnification: 2
tube lens focal length = 180mm
Please do suggest your options.
Cheers!
- Mon Jun 05, 2023 2:26 am
- Forum: Beginner's corner
- Topic: Image separation behavior in through-focus range of a microscope objective lens
- Replies: 5
- Views: 1605
Image separation behavior in through-focus range of a microscope objective lens
What might cause this behavior in a (low magnification 2x) objective lens. There seems to be a image separation in different axes as the object goes traverses through the focus plane (working distance plane) from one extreme to the other? Current theories: 1. Target is not orthogonal to optical axis...
- Sun Apr 16, 2023 6:30 pm
- Forum: Microscopes and optics
- Topic: 2x Metallurgical Objective (Tube 180mm)
- Replies: 4
- Views: 889
Re: 2x Metallurgical Objective (Tube 180mm)
Thank you @Scarodacctyl. I do have a 2.5x metallurgical objective as well from Olympus. It is a fantastic objective. I am designing my own 2x Brightfield (Reflected) objective but have a hard time finding a off-the-shelf 2x objective lens for comparison. I do have the Olympus PLAN 2x but it produces...
- Sun Apr 16, 2023 5:05 pm
- Forum: Microscopes and optics
- Topic: 2x Metallurgical Objective (Tube 180mm)
- Replies: 4
- Views: 889
2x Metallurgical Objective (Tube 180mm)
Hello all, I would like to purchase a reflected light 2x microscope objective. Olympus carries PLAN 2x objective for life-science applications (get a hot spot if you use it with reflected light) but not one for metallurgical use. Please suggest me a good 2x microscope objective that I can use on my ...
- Tue Jul 19, 2022 5:10 pm
- Forum: Illumination Techniques
- Topic: Reflected light Kohler Illumination
- Replies: 7
- Views: 2124
Re: Reflected light Kohler Illumination
The field lens is the element that distinguishes Kohler from critical illumination in practice. The irises are useful but secondary. Thanks for your comment. I agree that the field lens is the element that distinguishes Kohler from a critical illumination (nelsonian). But what exactly does the fiel...
- Mon Jul 18, 2022 12:27 am
- Forum: Illumination Techniques
- Topic: Reflected light Kohler Illumination
- Replies: 7
- Views: 2124
Re: Reflected light Kohler Illumination
Thanks to all for your comments. Having trouble finding a existing model of epi-illumination that can be built on workbench with off the shelf optics. Question(s): 1. The aperture stop should be conjugate to the objective BFP ? In most cases, especially with Chinese manufacturers this information is...
- Fri Jul 15, 2022 2:30 am
- Forum: Illumination Techniques
- Topic: Reflected light Kohler Illumination
- Replies: 7
- Views: 2124
Reflected light Kohler Illumination
I am unable to find any definite guide or reference for how to setup a kohler illumination design for a reflected light microscope. I am trying to build a reflected light microscope with off-the-shelf optics from Edmund Optics but have no idea where to look for a reference design to build a Kohler r...
- Fri May 06, 2022 1:10 am
- Forum: Microscopes and optics
- Topic: Metallurgical 2x objective 45mm parfocal design
- Replies: 0
- Views: 648
Metallurgical 2x objective 45mm parfocal design
I am looking for design references on a 45mm parfocal 2x metallurgical objective (WD > 6 at least) for a starting design. It seems difficult to get a design reference for low power microscope objectives. While there are so many copies and clones out there, I can't seem to find any resource for lens ...
- Tue Feb 22, 2022 11:09 pm
- Forum: Beginner's corner
- Topic: Mathematical relations of a Modified Wollaston DIC prism and microscope objective
- Replies: 3
- Views: 1446
Re: Mathematical relations of a Modified Wollaston DIC prism and microscope objective
Can the PlasDIC be incorporated into reflected light microscope?
- Tue Feb 22, 2022 1:42 am
- Forum: Beginner's corner
- Topic: Mathematical relations of a Modified Wollaston DIC prism and microscope objective
- Replies: 3
- Views: 1446
Mathematical relations of a Modified Wollaston DIC prism and microscope objective
What is the mathematical relationship between a Microscope objective's NA and Modified Wollaston Prism (Nomarski) DIC prism shear amount? What defines the shear amount in a DIC prism. Specifically in a reflective microscope design using a Nomarski prism. For instance, if the Rayleigh resolution of m...
- Mon Jan 10, 2022 3:12 am
- Forum: Resources (online, books etc.)
- Topic: Advanced Light Microscopy, Vol. 2 (Specialised Methods). By Maksymilian Pluta
- Replies: 0
- Views: 1535
Advanced Light Microscopy, Vol. 2 (Specialised Methods). By Maksymilian Pluta
Does anyone have a soft-copy for this book Advanced Light Microscopy, Vol. 2 (Specialised Methods). By Maksymilian Pluta ? ISBN:9788301078225, 8301078227 Page count:494 I would like to get a copy of this for my project and it has crucial information. Unfortunately this book is not available for purc...
- Mon Jan 10, 2022 1:02 am
- Forum: Microscopes and optics
- Topic: DIC Prism Design
- Replies: 18
- Views: 8952
Re: DIC Prism Design
Hello! Thanks for all the great discussion works on DIC Prism Design. I am having trouble getting a soft-copy/ hard copy from my local libraries. Can someone share the DIC design chapters from Advanced Light Microscopy, Vol. 2 (Specialised Methods). By Maksymilian Pluta ?? Or any other articles/ tex...
- Thu Nov 18, 2021 3:26 am
- Forum: Illumination Techniques
- Topic: Epi DIC woes
- Replies: 100
- Views: 52724
Re: Epi DIC woes
Kind of a finishing note for me, but I got an Image of Distinction in the Nikon Small world contest this year for a shot taken with the new setup. I really do think the Olympus system could take excellent shots and there are only one or two circumstances where it would have issues--but since those ...
- Thu Nov 18, 2021 3:03 am
- Forum: Microscopes and optics
- Topic: DIC for reflected microscope
- Replies: 4
- Views: 1781
Re: DIC for reflected microscope
Thanks for your input. Please see these images taken at 10x and 50x Objectives with the same DIC prism (Part Number U-DICR from Olympus). Look at the quality of 10x image compared with the 50x, it looks like as shown https://postimg.cc/gallery/KypKPHs . As you can see, the 10x gives out a double ima...
- Mon Nov 15, 2021 6:22 pm
- Forum: Microscopes and optics
- Topic: DIC for reflected microscope
- Replies: 4
- Views: 1781
DIC for reflected microscope
Hello, I am new to interference contrast enhancement methods in microscopy, and in particular about DIC . I have the following setup in my lab and was interested to learn what exactly does Olympus mean by Shear amount. I could not find any online resources as to the specifications of the DIC optics ...