Mesh Combo Screen

Mesh Combo Screen
	Here's the testing "mask" - in VERY rough shape. The mesh is standard 1/2 inch hardware cloth in an 8 inch square. (Note to self - make the next square larger!) The center "bar" is just bond paper cut to the center obstruction's diameter. It's all fastened by masking tape, for now. Scope - LX-90, f/10 8" SCT Camera - Casio QV-2900 attached to an Orion 25mm Plossl. Artificial Star - Red LED flashlight on top of scope, reflected in 3" convex mirror 45 feet from the scope.
This is a rough analog of the image on the camera's LCD panel. Click on the image for a better and larger simulation. This is the first mask of my series that has consistently produced spikes visible in the LCD.
	This is a magnified view of the center of the image at highest camera zoom when the telescope is out of focus. Note that the image is dim because it's also diffuse.
	This is the resulting diffraction image out of focus, at maximum optical zoom. (8x) Note the center image and horizontal spikes' height. The center is overexposed. The LCD shows a split image - ll- in the center.
This is a view of the spikes as it comes a bit closer to focus. The center is now one object and is much more square, but the spikes and the center are still a bit heightened.
	Here's the image when the scope is in focus. Note the center is now either square or round (depending on conditions) and the spikes are even in size. Click here to view a full size (800x600) image of the in focus image as captured by the camera.