Bill Phenix
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sets of images new camera from my
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my last image of M33 -
if there is anyone out there that are interested in producing a better RGB from this date, i will gladly send them the raw files from all the RGB captures -
the brain in Ha -
is there anyone out there that has a zwo533MM? ive just bought one and ime waiting for the next clear moonless night. if there is anyone, i would like to hear your experience, thanks. -
secondary mirrorless GSO 8" F4 CONSTRUCTION
Images added to a gallery album owned by Bill Phenix in Member's Album
This project was started a few weeks ago with the intention of removing the secondary mirror from my scope. i used a celestron 8 inch f5 tube and replaced the f5 mirror with a GSO 8 inch f4 mirror. A new mirror cell had to be built so i used the stellafane design as shown in the pics. i was fed up with the secondary dewing up and knew that the heat produced from the camera would eliminate this. 7% increase in light since no secondary. less diffraction since camera is much smaller than the required size of secondary. collimation is a dream, just remove the camera and look through the hole. focusing is done by gently moving the camera. i will be doing some rough tests tonight and will post images in the future. the images shown is of the scope nearly finished, i have to block the hole where the focuser used to be. -
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first test image of secondary mirrorless. -
a composite of m33 again done under the very misty skies of Nantou Taiwan -
the quintet, done under very misty skies. -
using sharpcap pro and after using the brain to measure the light pollution, it suggested i use an exposure of 2.7 seconds and gain 61, brightness 12 for 1 hour, so i did and got this result of ngc 7331. No filters were used. all my images are made using the relatively cheap zwoasi290mm. this is test image 2 of the secondary mirrorless scope -
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j & i in stereo -
sam rgb but used winjupos
_Exposure16.jpg.e8c8dac62ebc39d38cb9e8276a4801d6.jpg)
