Setup: Coronado SM60/BF10 H-alpha filter, Borg 100ED F6.4, IR reject filter, ToUcam web camera (1.8 "/pixel), Takahashi EM-10 mount (here's how this setup looks).
Webcam settings: 1/2500 sec (1/100 sec for background/prominences in STD mode, 1/1500 sec in CONR mode), 5 FPS, brightness=100%, gamma=10% (50% for background/prominences), b&w mode=ON, 640x480 pixels
Processing: K3CCDtools, Mira6, Photoshop7.
Here is a back-to-back comparison between the standard ToUcam imaging mode and the so-called 'color optimized non-raw' (CONR) mode.
According to my understanding the main feature of CONR mode is to disable automatic image image sharpening during acquisition.
The images were taken at nearly the same time, same number of total frames, same number of stacked frames, etc. The processing has also beed done quite
identically, except for some extra sharpening of the CONR frame. Each image is a mosaic of two images, one disc and one background. I think that the CONR
mode produces the best results; with less horisontal banding and less darkening at the limb.
Here's my main page where you can see more of the pictures I have taken so far.
Comments greatly appreciated! (mikael@leif.org)
