MECHANIC RX-4K 48MP Industrial Lab Microscope Camera ? - Page 1
Forum section: electronics / general

author: smile
author_rank: Regular Contributor
timestamp: December 29, 2023, 01:01:33 pm
content: Hello, any idea if this is really SONY sensor or just fake camera?https://www.aliexpress.com/item/1005005343100321.html?pdp_npi=4%40dis%21EUR%21%E2%82%AC%20216%2C40%21%E2%82%AC%20175%2C29%21%21%21%21%21%40211b600817038535511943192e18d5%2112000032684646894%21sh%21LT%21165171744%21&spm=a2g0o.store_pc_allItems_or_groupList.new_all_items_2007586129094.1005005343100321#nav-specificationI'm looking for 1/2.3 sensor size camera the ones from Imaging Source seem real deal but 600Eur ?

author: magic
author_rank: Super Contributor
timestamp: December 29, 2023, 04:36:02 pm
content: 48Mpx is certainly a fake spec (and overkill if true) and I'm not sure if 4K isn't overkill on such a small sensor too. Besides, specs at the bottom say that it's 1080p only and uses JPG compression in USB mode which presumably means it doesn't even support SuperSpeed. For USB use I think there are better and cheaper cameras out there, but maybe you want to use HDMI or microSD recording...

author: Martinn
author_rank: Frequent Contributor
timestamp: December 29, 2023, 05:29:28 pm
content: Basic math: 1/2.8" sensor size, 2.9 um pixels - see datasheet of this one for examplehttps://www.sony-semicon.com/files/62/flyer_security/IMX290_178_226_Flyer.pdfMight be a 2 MP sensor, which would be fine. 48 MP are either completely fake or just interpolated.

author: thm_w
author_rank: Super Contributor
timestamp: December 29, 2023, 10:12:34 pm
content: Quote from: Martinn on December 29, 2023, 05:29:28 pm48MP sensor here:https://www.notebookcheck.net/Sony-IMX586-Comparison-Review-Five-48-MP-smartphones-face-off-in-a-camera-duel.428434.0.htmlBut yes it does seem to match the IMX290 spec as you linked, so that spec is clearly a lie.Other sellers have the same item for ~$75:https://www.aliexpress.us/item/3256806035034444.htmland also other cams which claim to tell you what sensor is used in them (IMX307, IMX415, IMX678).I would probably want to see a review before purchasing any of those.

author: magic
author_rank: Super Contributor
timestamp: December 29, 2023, 10:35:30 pm
content: AliExpress cameras (and everything, frankly) are a big mess. Specifications are often very sparse or conflicting. Some are completely nonsensical, like aforementioned 48Mpx.I have a strong suspicion that there exist HighSpeed (USB 2.0 generation) cameras with USB 3.0 connectors. They look like USB 3.0 externally and may be advertised as such, but detailed specs indicate that higher resolution modes only work in MJPG or at pathetically slow frame rate (1~2 fps) - typical of USB 2.0 cameras.I am actually looking for something decent too, and...

author: thm_w
author_rank: Super Contributor
timestamp: December 29, 2023, 11:37:25 pm
content: If it just needs to be decent, I've had no issues with these:https://www.aliexpress.com/item/32899919461.htmlIMX334https://www.aliexpress.com/item/1005004675631480.htmlIMX307 + autofocusLapsun gets mentioned here sometimes as well:https://www.aliexpress.us/item/3256803143996474.htmlIMX377

author: smile
author_rank: Regular Contributor
timestamp: December 30, 2023, 04:52:31 pm
content: Hello,https://www.theimagingsource.com/en-us/product/zoom-autofocus/afu/dfkafu420l62/7,716×5,360 (41.4 MP), up to 110 fpsI wanted to get this instead, as I have the lens for it,https://www.opto-e.com/en/products/mc03-03x-serieThe camera cost is 600Eur is not easy to buy, the lens I have also was about 600EurI bought the lens 4years ago and waited to get decent camera because largest sensor to fit for this lens is 2/3”So Sony IMX226 was 12MP the most MP sensor I could fit, and it is very low megapixel count. Sony IMX226 cost is also 500Eur or so.This DFK AFU420-L62 is the exact size sensor as my LENS can handle. Yet sensor is some old outdated not backlit like sony starvis IMX226. Can't tell exact model because manufacturer Imaging Source refuses to tell me.

author: magic
author_rank: Super Contributor
timestamp: December 30, 2023, 11:15:28 pm
content: 2/3" and 1/2.3" is a fairly significant difference in field of view.There is no need for crazy megapixel count on a small sensor because diffraction in the lens limits resolution anyway. Working aperture of f/6-8 at low magnifications means that two points of light separated 4μ on the sensor are blurred enough to be almost inseparable, even with sharpening. The fairly common pixel pitch of ~2μ is a point of diminishing returns.At high magnification and f/10-20 aperture the image will be even less sharp.

author: magic
author_rank: Super Contributor
timestamp: January 03, 2024, 11:17:10 am
content: Quote from: thm_w on December 29, 2023, 11:37:25 pmWell, I only care about USB and don't like widescreen very much (poor fit to imagecircleof lenses) so there are cheaper options of similar utility (to me) out there.Speaking of Eakins, their item1005005949420173looks interesting: 20MP on 1" sensor with 2.4μ (my math) pixel pitch, at a moderate price.Unfortunately no mention of its YUV capabilities (if any) and I have some poor experience with webcam MJPEG encoders...

author: smile
author_rank: Regular Contributor
timestamp: January 07, 2024, 03:08:46 pm
content: I have only one requirement sensor must fit my lenshttps://www.opto-e.com/en/products/mc03-03x-serie

author: bostonman
author_rank: Super Contributor
timestamp: January 10, 2024, 06:43:06 pm
content: I've been curious, do these have a universal fit?I have a no name microscope (or the name has been removed somehow) that I acquired. Sometimes if I care to take a picture, I try using my iPhone camera, however, I spend a great deal of time trying to aim it.Something that would mount to my existing microscope lens would be great, but not sure if it too would have difficulty focusing. Usually the focusing is due to moving the phone a mm and suddenly I lose the image.

author: thm_w
author_rank: Super Contributor
timestamp: January 10, 2024, 10:09:54 pm
content: Quote from: bostonman on January 10, 2024, 06:43:06 pmYou need to measure your microscope. There are various sizes for eyepieces and trinocular ports, although some are somewhat standard (23.3mm, 30mm).You can also look at options like:https://www.thingiverse.com/thing:431168

author: Martinn
author_rank: Frequent Contributor
timestamp: January 12, 2024, 10:29:23 am
content: Quote from: bostonman on January 10, 2024, 06:43:06 pmI have purchased a handful of microscopes, some with third camera port, have never seen those used. Phone camera shots through the eyepiece are so much more convenient.Some time ago, I 3D printed a phone holder you can slip onto the eypiece. Doesn't work anymore since I have a new phone. At some place I saw they had made an adjustable phone holder you could flip over the eyepiece, also worked well.The version linked by thm_w looks super ugly, but will do the job. Aliexpress also has some models, all look cheap and flimsy however. Best design your own. A simple spacer tube is already a good start.