2 replies to this topic

[Amatorex]

Hello. I wanted to ask if anyone already has the antlia uhc pro 2" filter? How does it compare to astronomik, lumicon and ultrablock?

http://www.antliafil...m/pd.jsp?id=166

google translate

[Starman1]

If the curve is accurate, the bandwidth (FWHM) in the blue green is 30nm, and in the red is 32nm.

Comparing this to Astronomik, the Astronomik is a bit narrower in the blue green yet passes all the same spectral lines.

The Lumicon is also narrower.  The Tele Vue is also narrower but passes zero reds.  The DGM NPB is even narrower (best contrast of all), and passes even more red.

The Orion Ultrablock (now discontinued) is about the same, but passes no red.

So, in essence, it should be a good visual filter, but with just a little less contrast than the others.

Picking up the reds is more important for imagers than visual users.  Blue-Green bandwidth is what matters visually..

If this costs less than the others, it could be an excellent buy.  If it costs more, then I would go for one of the others.

[Amatorex]

thanks for the reply. Astronomic in my country costs 225$ and antlia 158$.