Amscope trinocular microscope and Eakins camera issues - Page 1
Forum section: electronics / beginners

author: newtekuser
author_rank: Frequent Contributor
timestamp: September 19, 2024, 10:12:28 pm
content: I recently purchased an Eakins camera for my Amscope trinocular off Aliexpress, it's the one with the IMX386 sensor. The problem I have with it is that the image it gives is only usable when the DUT is really close up to the scope lens (I have a Barlow lens attached). This is not optimal:1. I can't do any work on the DUT when it's so up close2. The image is very zoomed and can't see a lot of the work area3. I need to raise the DUT very close to the microscope lens with a stand (using a cardboard box for now)Do I need to add a reduction lens to the camera?https://www.amazon.com/OMAX-0-5X-Reduction-Microscope-Camera/dp/B00FG89IZO/ref=sr_1_21?crid=2R6GJZXLJS69T&dib=eyJ2IjoiMSJ9.vH-2BvgIXdTkk2uvtRxQdRlPfTdieko7tqxMNvvDtX3GjHj071QN20LucGBJIEps.UP4so_2F2kYCXlaKndWxOMxxUgN6DlPXEuYjgKit4RE&dib_tag=se&keywords=microscope+camera+lens&qid=1726784119&sprefix=microscope+camera+len%2Caps%2C193&sr=8-21

author: thm_w
author_rank: Super Contributor
timestamp: September 19, 2024, 11:11:28 pm
content: Link to what you bought please, and maybe take a photo of your setup.With a trinocular camera, the image should be near enough what you see using the eyepieces, once adjusted. So probably the spacing or positioning of the camera is off. What adapter are you using? Does it have adjustments on it?https://www.eevblog.com/forum/reviews/new-trinocular-microscope-what-im-doing-wrong/https://www.eevblog.com/forum/reviews/eakins-microscope-big-problems/

author: newtekuser
author_rank: Frequent Contributor
timestamp: September 19, 2024, 11:35:23 pm
content: Quote from: thm_w on September 19, 2024, 11:11:28 pmAttached a pic of my setup and this is the camera I've got:https://www.aliexpress.us/item/3256805573018177.html?spm=a2g0o.order_list.order_list_main.16.38ad1802HXfKnH&gatewayAdapt=glo2usaI played around with the camera setting but none helped.

author: thm_w
author_rank: Super Contributor
timestamp: September 19, 2024, 11:56:00 pm
content: If you look at their example setup they are using the 0.5X C-mount adapter:https://www.aliexpress.com/i/2255800949532328.htmlSo yeah you might be right that you need one of those:https://www.aliexpress.com/i/2251832766929158.htmlNot sure if thats the same as your link, seems to be similar.Sizing details here:https://www.microscopeworld.com/p-3287-microscope-c-mount-adapters-explained.aspx1/1.9" sensor size so 0.5x should be appropriate.

author: jfiresto
author_rank: Frequent Contributor
timestamp: September 20, 2024, 02:28:28 pm
content: I am trying to understand the issue. Does the camera's focus match the eyepieces', that is, when you get the sample in focus while looking through the eyepieces does that bring the camera in focus?

author: newtekuser
author_rank: Frequent Contributor
timestamp: September 22, 2024, 04:36:17 am
content: I can confirm that the reduction lens solves my issue.

author: Psi
author_rank: Super Contributor
timestamp: September 22, 2024, 04:40:53 am
content: Yeah, i dunno why everyone sells this microscope in this config, you need the lens on the trinocular port