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There is a slight green bias in the FSQ106ED. It comes from the paint Tak uses on the inside of the tube. I thought it was the mustard coloured objective coatings but its not.
When I first took an image with the TEC110 fluorite the increase in colour was immediate and easy to see.
FSQ106ED probably is sharper than the 106N and no vignetting like the 106N can do on bright stars near the edges of the image.
I'd love to see more FSQ130 images but I guess at a $20,000 landed cost you won't see too many.
Greg.
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