Questions about RV Daheng low distortion lens for David SLS-2 projector K132
Posted: 03 Jan 2022, 15:24
Hi, I`m David SLS-2 user (David 4 with single cam 3.1MP - I used that for many years with success) and a RangeVision user (fresh user). I`ve bought RangeVision software and 2 Daheng MER2-630-60U3M.
I would like to buy lenses for Range Vision (Daheng camera) and I`ve thought about a couple ZLKC (I may buy something different but I don`t want to go much more expensive).
I know that I should think about pixel size value (aka pixel pitch) what is in the Daheng cameras about 2.4uM.
I scan often 1-4 meter objects and I have a problem with deviation along with scans so I`ve thought to buy a low distortion lens for the bigger sensor.
Using a bigger sensor lens on a smaller sensor camera will give you smaller errors near frame edges of the lens view (IMO).
I think I should buy 10MP ZLKC camera for that Daheng MER2-630-60U3M.
8mm ZLKC: https://www.aliexpress.com/item/3295953 ... 7514sodTcc
12mm ZLKC: https://www.aliexpress.com/item/3296590 ... 7514sodTcc
16mm ZLKC: https://www.aliexpress.com/item/3296967 ... 7514sodTcc
25mm ZLKC: https://www.aliexpress.com/item/3296022 ... 7514sodTcc
1) What lens could you recommend me for using with RangeVision and Daheng MER2-630-60U3M and ACER K132 (original David SLS-2 projector with projector lens modified for shorter throw projection)?
2) What lens could you recommend to me for the same setup as above if important would be to have low distortions with long 2-4m scans which would contain many patches in one line?
3) What lens focal length do you use with the SLS-2 projector and Range Vision? (I know that focal length fitment depends on lens size too)
I have used David on small and big objects. I`ve scanned with it jewellery and big cars but I can`t update to David 5 anymore and I would like to evolve. Another thing I`m tired of with "banana-like" scans on long objects and I think that with a better lens my scans should be more straight because it`s the fault of lens distortion.
This is my sample use of SLS-2 David 3.1MP camera with a 12MP lens: https://skfb.ly/ootwu
I would like to buy lenses for Range Vision (Daheng camera) and I`ve thought about a couple ZLKC (I may buy something different but I don`t want to go much more expensive).
I know that I should think about pixel size value (aka pixel pitch) what is in the Daheng cameras about 2.4uM.
I scan often 1-4 meter objects and I have a problem with deviation along with scans so I`ve thought to buy a low distortion lens for the bigger sensor.
Using a bigger sensor lens on a smaller sensor camera will give you smaller errors near frame edges of the lens view (IMO).
I think I should buy 10MP ZLKC camera for that Daheng MER2-630-60U3M.
8mm ZLKC: https://www.aliexpress.com/item/3295953 ... 7514sodTcc
12mm ZLKC: https://www.aliexpress.com/item/3296590 ... 7514sodTcc
16mm ZLKC: https://www.aliexpress.com/item/3296967 ... 7514sodTcc
25mm ZLKC: https://www.aliexpress.com/item/3296022 ... 7514sodTcc
1) What lens could you recommend me for using with RangeVision and Daheng MER2-630-60U3M and ACER K132 (original David SLS-2 projector with projector lens modified for shorter throw projection)?
2) What lens could you recommend to me for the same setup as above if important would be to have low distortions with long 2-4m scans which would contain many patches in one line?
3) What lens focal length do you use with the SLS-2 projector and Range Vision? (I know that focal length fitment depends on lens size too)
I have used David on small and big objects. I`ve scanned with it jewellery and big cars but I can`t update to David 5 anymore and I would like to evolve. Another thing I`m tired of with "banana-like" scans on long objects and I think that with a better lens my scans should be more straight because it`s the fault of lens distortion.
This is my sample use of SLS-2 David 3.1MP camera with a 12MP lens: https://skfb.ly/ootwu