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Top-quality C-mount adapter solution 0.5x for attaching C-mount cameras to Olympus 42 mm phototubes

To make the best use of the roughly 1/2" sensor size on C-mount cameras, we recommend using an LM adapter solution with adjustment optics. This top-quality adapter solution features an integrated plan-achromatic optical system. It is made of CNC machined, turned aluminium and has an optical factor of 0.5x. With this optical adjustment, the field of view in the photograph is the same size as that you see through the eyepieces, in a rectangular format with no peripheral darkening. If you used a C-mount connection with a factor of 1x, i.e. without optical adjustment, the field of view in the photograph would be 50% smaller (see image):

Comparison of field of view fov c-mount cameras adapter integrated adjustment optics
Comparison of field of view fov c-mount cameras adapter integrated adjustment optics

This image shows very well just how much an adapter without adjustment optics crops the field of view. Our adapter solution for standard C-mount cameras with integrated adjustment optics provides the largest possible field of view. 

 C-mount adapter solution 0.5x for Olympus phototubes with 42mm
 
A large number of Olympus microscopes have a phototube with an internal diameter of 42 mm. 

C-mount adapter Olympus phototube

Examples for some of these microscopes are: 

Upright laboratory microscopes: 

Inverse laboratory microscopes: 

Stereo microscopes: 

With our LM adapter solution, a wide range of C-mount cameras can be attached to these phototubes in just a few quick and simple steps. Our adapter, which is a perfect fit for the sensor sizes shown in the table below, reduces field of view by 50%. This optical adjustment is necessary to ensure that the camera’s sensor is used to optimal capacity and that the section of the image in the eyepiece will match the field of view represented by the camera.

Type Aspect
ratio
Diagonal size
[mm]
Width
[mm]
Height
[mm]
         
1/2,7" 4:3 6,7 5,3 4,0
1/2.5" 4:3 7,1 5,7 4,3
1/2,3" 4:3 7,7 6,2 4,6
1/2" 4:3 8,0 5,4 4,8
1/1.8" 4:3 8,9 7.1 5,3
1:1.7" 4:3 9.5 7.6 5.7

The adapter and C-mount camera form a compact unit and can be used on a wide variety of microscopes without any difficulty.

Mount the C-mount camera on the Olympus microscope on the phototube

Adapter solution for the eyepiece tube

With our adapter solution, it is also possible to attach C-mount microscope and industrial cameras to the microscope’s eyepiece tube in a few quick and easy steps. 

 LM adapter solution for C-mount 0.5x camera on the eyepiece tube

As an alternative to C-mount cameras, we recommend modern DSLR (digital single lens reflex) or DSLM (digital single lens mirrorless) cameras because their sensors are much larger and will therefore give you substantially better image quality. Especially at low levels of magnification and also when used with a stereo microscope, the larger sensor format with a higher number of pixels has significant advantages.

SLR or mirrorless system cameras (DSLR, DSLM) have a much larger image sensor

You can find more information about camera selection on our two info pages camera recommendation and camera ranking. On request, we will also be happy to advise you individually.

05.03.2021

Ordering codeProduct descriptionPricePriceAvailable

CMOUNT05x_42mm
LM C-Mount adapter magnification factor of 0.5x for Olympus phototube with 42mm inner diameter. Special hard anti-reflection plan achromatic coating optic

Data Sheet0
Info1
Euro 1289,--
US $ 1366.34

RelayLens05T
LM digital relay lens adapter with a magnification factor of 0.5x for 23.2mm eyepiece or phototube. Special hard anti-reflection plan achromatic coating optic

Data Sheet0
Operating Instructions1
Euro 1369,--
US $ 1451.14

TUST30S
Tube adapter 30mm for LM Digital Adapter with 23.2mm tube

Data Sheet0
Operating Instructions1
Euro 239,--
US $ 253.34
For EU (European Union) VAT (IVA, TVA) not included