Author Topic: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!  (Read 5352 times)

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Offline Carrington

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Re: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!
« Reply #75 on: October 13, 2018, 02:02:22 am »
I am trying to figure out a way to get more out of the firmware. It must be linux based. The mainboard is based on the Hi3516A SoC made by
Just find a serial port, J50 maybe. I have the original Hisilicon SDK somewhere.

Edited to clarify some things:
Even though is easy to find new SDK versions on the Internet, additional drivers will be needed to get something functional.
For example, to my knowledge, even the latest versions come without a driver for the IMX290/291.

« Last Edit: October 13, 2018, 04:54:23 am by Carrington »
My English can be pretty bad, so suggestions are welcome. ;)
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Offline mikeselectricstuff

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Re: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!
« Reply #76 on: October 13, 2018, 02:15:43 am »
I wonder if it can load firmware from a USB stick
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Offline Carrington

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Re: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!
« Reply #77 on: October 13, 2018, 02:27:56 am »
Probably you can do it via USB and SD card too, for IP cameras, LAN is the easy way.
IP cameras based on Hi3516A are easy to mod, and a lot more cheap.  ;)
The problem is the delay via LAN, and the zoom/auto focus, they require totally different lenses.

For example: https://hupuu.com/camera/ipcb-3516as291-d29-et9-1080p-50fps-1-2.8-2mp-sony-imx291-hi3516a-ip-starlight-security-cctv?sku=CBF-D29
Manufacturer: http://www.jvt.cc/S291H16A-L29.html

Note: Edited to clarify some things.
« Last Edit: October 13, 2018, 04:57:21 am by Carrington »
My English can be pretty bad, so suggestions are welcome. ;)
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Offline Finbarry

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Re: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!
« Reply #78 on: October 13, 2018, 02:52:23 am »
I am trying to figure out a way to get more out of the firmware. It must be linux based. The mainboard is based on the Hi3516A SoC made by
Just find a serial port, J50 maybe. I have the original Hisilicon SDK somewhere.

I'll check J50 after the weekend when I'm back in my workshop.
I will post an update about my findings then.
 

Offline smbaker

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Re: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!
« Reply #79 on: October 13, 2018, 04:41:04 am »
Cheaper, 400$ with 120x lens: Cheaper 400$usd, 120x lens

This one is a steal which has the stand AND lamp and a 180x, or 300x lens for 429$ : With stand and circular LED lamp for 429$

Wow, the shipping sure goes through the roof if you switch from camera+lens to camera+lens+stand.

What other options are there for a stand for one of these things?
 

Offline Mr.B

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Re: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!
« Reply #80 on: October 13, 2018, 03:44:13 pm »
I have just set mine up.
I was going to do a teardown with photos, but I see @Finbarry has beaten me to it.
I am reasonably impressed with it.
My setup below.
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Offline voltsandjolts

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Re: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!
« Reply #81 on: October 14, 2018, 06:36:34 am »
As an alternative, has anyone tried a microscope setup using a digital SLR with HDMI out?
e.g. Nikon D3400 (with 60fps HDMI) + C-mount adapter + lens
Costs look comparable on ebay, with the advantage that you also have a SLR.

Ahh, maybe you don't get auto focus when the SLR mirror is up for 'liveview video'.
 

Offline mikeselectricstuff

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Re: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!
« Reply #82 on: October 14, 2018, 06:53:23 am »
Latency may be an issue with dslr, not so much of an issue for inspection but can be a big pain for working under
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Offline smbaker

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Re: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!
« Reply #83 on: October 14, 2018, 03:15:46 pm »
As an alternative, has anyone tried a microscope setup using a digital SLR with HDMI out?
e.g. Nikon D3400 (with 60fps HDMI) + C-mount adapter + lens
Costs look comparable on ebay, with the advantage that you also have a SLR.

Ahh, maybe you don't get auto focus when the SLR mirror is up for 'liveview video'.

I've shot still images and video on a trinocular amscope with my Canon t6i (and t2i before that). I've not tried viewing the HDMI out while recording, but the recorded image when I play it back on my PC is great, though the field of view is significantly less than what I see through the eyepiece. What this doesn't achieve is any sort of autofocus. The focusing mechanism is inside the camera lens, and that lens is removed and replaced with the microscope adapter. You can set the trinocular microscope up so that the camera is in focus when the eyepieces are in focus, but still if you tilt the board or you zoom the microscope, you have to fuss with the focus. IMO autofocus is the biggest advantage to the Eakins setup in Dave's video.

I pulled the trigger Friday evening and ordered the Eakins setup. I picked the package that includes the stand and the small LCD monitor (another small LCD monitor will always come in handy). I also purchased an 0.35 barlow that I'm going to try with it to see how much it improves the field of view. I've also ordered a c-mount adapter so I can try mounting the Eakins directly to my amscope and compare that to the lens that ships with the Eakins. The Eakins hasn't shipped yet, but I'll respond with my impressions when it eventually arrives.

Ali Express triggered fraud alerts on both the credit cards I tried to use, led to some grief trying to place the order. My order is currently in "being verified" state. I guess the lack of trust between Visa and AliExpress is mutual.

Scott
« Last Edit: October 14, 2018, 03:20:24 pm by smbaker »
 

Offline Astrodev

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Re: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!
« Reply #84 on: October 16, 2018, 09:50:47 am »
I was looking forward to trying one of these out today, but for some reason the package that was supposed to contain the bits I ordered got delivered to someone in France this morning and not the UK.

With a bit of luck it was only an error in the tracking number and it is still on route but I am not holding out much hope as the AliExpress tracking shows it as enroute to the UK.


I have sent them a message to ask what is going on so I will have to wait and suspect it will now be another week at least before I get one to play with.
 

Offline Hydron

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Re: EEVblog #1125 - Amazing $500 Soldering/Inspection Microscope!
« Reply #85 on: October 16, 2018, 10:37:48 pm »
Latency may be an issue with dslr, not so much of an issue for inspection but can be a big pain for working under
I've had a play using a bodged together dslr+HDMI macro rig as a possible soldering setup. Latency was OK with my cameras (EOS M and M5) but there were other problems:
- You have to muck about to try and get a reasonable aperture (wide open does not give enough depth of field). Aperture setting will not necessarily apply in live-view mode, only when you actually take a pic.
- video output was stuck at 720p/1080i depending on the camera (and that's after pissing about with the monitor's EDID EEPROM to add specific resolutions that the cameras liked, otherwise they spat out SD)
- the output is not native sensor resolution either (they do pixel skipping and stuff), so you're not getting the best out of the camera

I'm not completely giving up on doing things this way, but it's clearly easier going the aliexpress camera route!
 
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