Hi,
I've just posted about my experience imaging both Heart and Soul nebula in H-alpha using Astronomik 1.25" 12nm H-alpha filter with the Samyang 135mm F2.0 wide open. This is a great combination for wide-field imaging.
But I initially had problems using it with the original ZWO drivers and Nebulosity 4, as it would time out after 30 seconds when trying to save the image. SInce installing the latest drivers from ZWO website and updating to Nebulosity 4.1, I have successfully captured images without any further issues (all 20 lights, 15 darks, 100 bias and 100 flats were captured without any incident). It worked fine with SharpCap (latest version) as well, but my Sequence Generator Pro trial has ended so I've not managed to try it with this, as I am still not convinced it will work well with my equipment and hence cannot commit to this purchase at this point in time.
The link is below:
http://myphotojourney.co.uk/zwo-asi1600mm-cool-first-light/
I have to say that the amp glow is definitely less pronounced than that with the ASI178MM-cool. Also, although the sensitivity is on parr with the ASI178MM-cool in my daylight testing, it is definitely bettering it in deep sky imaging by 1/2 stop, which means that I should be able to capture more frames in the same time or increasing exposure time and reducing the gain used.
Boon
