| Products > Test Equipment |
| Which HDMI Microscope Camera and Zoom Lens for soldering |
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| dredd:
Hi. I got profoundly lost choosing the camera and lens. My target application is PCB inspection and soldering of 0603 SMD components. I already have HDMI 7" FHD LCD monitor, and stands are plenty. USB latency is too bad. Example of what I'm looking for: https://www.aliexpress.com/item/1005007438433358.html I tried Eakins Stereo 7x-45x zoom microscope last week, purely optical, returned, exit pupil was so small I could hardly see with both eyes. Requirements: - True 1080p @ 60Hz HDMI output, I heard that 30Hz is not enough for soldering. Probably some cameras fake 60Hz by copying 30Hz to 2 frames. - Working distance from 130mm - Zoom. I see crazy zoom numbers, so cannot put a number here. From 5mm of subject visible I reckon. - Budget A$150 - A$300 for the set. Autofocus is bonus, but probably not needed. I think lens has to have two adjustment rings - zoom and focus ? Anyone has a setup they are happy with? Thanks!!! |
| pcprogrammer:
No experience yet, but I'm waiting for one I ordered. https://nl.aliexpress.com/item/1005007549402242.html I ordered the 4K USB HDMI one with solid stand. It should arrive on September fifth at the latest. I do have a small 7inch microscope with camera and it works for soldering and inspecting but the view is small and for good zoom the distance to the object is also small making maneuvering with the iron more difficult. Hopefully the ordered on will make things better. |
| jpanhalt:
I use a 2X glass lense visor for 603 and larger. I also wear +2 diopter reading glasses underneath (I am 80+ years) and haven't tried smaller. For detailed inspection, I use a zoom optical stereo microscope (aka dissecting scope). If you raise your work area relative to where you sit, it is easier to control. |
| dredd:
--- Quote from: jpanhalt on August 27, 2024, 11:13:59 am ---I use a 2X glass lense visor for 603 and larger. ... --- End quote --- Do you have a pic of this? I tried some visor (lens) glasses from Amazon, working distance (WD) was too small, with my face literally on the table lol |
| Phil1977:
My own experiences with the chinese microscopes: - Manual focus is better than a bad autofocus - Full HD (1080p) at 60Hz seems to be a sweet spot. 4K at 60Hz is tricky and you can see the difference between 4K and Full HD only when the object is perfectly flat and in the focal plane. - The lenses as shown in your offer often only have one adjustment ring for the zoom ratio. Focus is only set by the height adjustment. - The non-zoom lenses usually have a focus ring so that you can also have different magnification ratios by changing the focus. But this means you can't zoom into the object without refocussing. - FOV is often more important than magnification. Do not choose the lenses with too high minimum magnification. - Latency over HDMI was absolutely okay with the units I know. Latency over USB mostly was just bad. |
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