What adapter for Sony A6300 to trinocular port? - Page 1
Forum section: electronics / general

author: Gussy Fink-Nottle
author_rank: Newbie
timestamp: July 08, 2023, 08:35:21 pm
content: I havethis Eakins microscopeand camera. I’m not happy with the camera and would like to use my Sony A6300 instead but I’m not sure what adapter I would need.1. Would I continue to use the C-mount adapter (I am usingthis 0.35x one) that is connected to my current camera with an additional adapter to the Sony E-mount or would I need an adapter that just drops into the trinocular port and connects to the Sony camera without the C-mount adapter?2. I’m confused if I need a T or C adapter, or really what adapter I need, period. I’ve spent hours googling and going around in circles and here I am now, thoroughly confused 🙂3. Any specific recommendations for the adapter(s) needed?4. Would the larger sensor in the Sony cause any issues with vignetting?

author: Gussy Fink-Nottle
author_rank: Newbie
timestamp: July 10, 2023, 10:54:31 pm
content: Is there any other information I can provide?

author: jfiresto
author_rank: Frequent Contributor
timestamp: July 12, 2023, 06:22:20 pm
content: I bet you first want something like thisEakins 1X C mount Lens Adapter. I would ask Eakins to confirm it matches your microscope.Then a not uncommon c-mount to sony e-mount thread adapter, such asthis one.There will be some vignetting because of the camera's APS-C sensor (a 21~22mm diagonal is about the most you can get). Good luck! Adapting a camera to a microscope sometimes needs a bit of sorcery/witchcraft.EDIT: Found and substituted what could be the right Eakins adapter. It is much cheaper which could mean it has not internal optics.

author: nightfire
author_rank: Frequent Contributor
timestamp: July 12, 2023, 06:46:20 pm
content: From what I see here, is that the existing adapter provided with the microscope set provides a C-Mount interface to the camera.So the easiest solution (and to try out if the concept works) would be to use a cheap mechanical adapter to adapt the C-mount to Sony NEX/E-Mount.Something like this:https://www.kentfaith.de/KF06.114_c-mount-objektiv-auf-sony-e-mount-kamera-adapterAs the C-Mount was developed to cater for 1" sensors or smaller, the area it covers is roughly 9 x 12 mm- means that the 24x16mm sensor of the sony A6300 will exhibit some vignetting.Given the costs of the mechanical adapters, I would consider it worth a try.

author: Gussy Fink-Nottle
author_rank: Newbie
timestamp: July 13, 2023, 04:24:31 pm
content: I picked up one of the C-mount to E-mount adapters from Amazon. Unfortunately the amount of vignetting makes it not workable. On my monitor the image is only about 15% of the size of the monitor. Also, while I can achieve focus when zoomed in to the maximum I cannot achieve focus when zoomed out.My C-mount adapter that I'm using is a 0.35x so maybe that has something to do with it.

author: jfiresto
author_rank: Frequent Contributor
timestamp: July 13, 2023, 05:05:38 pm
content: Quote from: Gussy Fink-Nottle on July 13, 2023, 04:24:31 pmOut of focus when fully zoomed out usually means the image sensor is either too high or too low. The standard song and dance is to first get the eyepieces parfocal, then go to lowest zoom, leave the eyepieces in focus, and move the camera up or down in its photo tube until the camera too is in focus.QuoteCan you spin the c- to e-mount adapter all down into the 0.35X adapter? My wild guess from a great distance is you can't and thus the camera is a few millimeters too high.

author: Gussy Fink-Nottle
author_rank: Newbie
timestamp: July 13, 2023, 07:18:11 pm
content: Quote from: jfiresto on July 13, 2023, 05:05:38 pmThe microscope is parafocused but I can't get the camera to focus when zoomed out all of the way. Even if I could the recorded image is so small that it isn't usable.QuoteIf I am understanding you, that is how I currently have it. The C-mount adapter is attached to the trinocular port on the scope and then the C-mount to E-mount adapter is attached to that, and then the camera.

author: jfiresto
author_rank: Frequent Contributor
timestamp: July 14, 2023, 01:45:50 pm
content: The focus issue may be the wide flange of the Amscope 0.35X adapter not allowing the e-mount to c-mount adapter to spin all the way on: the lowered, outer rim of the e-to-c hits the flange, first. Amscope's 1X adapter may also have this issue (first attachment). The slimmer, taller Eakins's adapter I linked to (second attachment) looks like it won't. You might also ask Eakins if it will be parfocal – that should be a given but may not be.