It seem to me it is an old model.
1.4 NA instead or 1.25 NA is not enough for low magnification.
The second lens of 0.3 is good almost for brightfield:
oblique illumination is not very effective with this second lens.
The aparture 1.4 NA is not mentioned on the description of this product.
I changed the lens with another condenser (1.25 NA) for increase the lighting and 3D effect of the oblique illumination.
Now, I am very satisfied of this product and I was able to make great pictures with 3D effect on my website microscopyviiew.com
Would recommend: Yes
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