Al Paslow Astronomy Collection

Images and events of personal interest.

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Winter observing is often done with the two classic instruments - 4 inch F-15 Edmund Scientific Refractor & and a 4.25 inch Edmund F-10 Reflector. Both from 1960's or early 1970's.
Another image of my homemade 8 inch f-8 reflector telescope. I made the 8 inch primary mirror and polished it to about 1/12 wave or better. The larger finder is a University Optics 2.4 inch refractor. The small other finder is a Unitron.
This is the tube assembly of my original 8 inch relector telescope built between 1967 and 1970. I ground and polished the mirror and used a Parks "blue" fiberglass tube. The focuser is Telescopics and the finder is a genuine "Unitron" 10 x 40 mm item. I placed some photography charts to the instrument in the early 70's and they are still attached .
Al Paslow, and my 10 inch f-20 primary mirror for a Buchroeder reflecting Schiefspigler Telescope. I broke this mirror in the early 70's while attemping to remove a small central zone during "hot pressing" the mirror on the pitch lap. I slipped on some water on the floor and broke a section from the mirror trying to place a heavy weight on to the combination. I made this mirror shortly after this particular design was sent to me directly from Richard Buchroeder, in 1971. It was a modification of the design which appeared in Sky & Telescope Dec 1969. The modification was called O'Neil- Buchroeder Schiefspiegler" and no one had compleated an instrument of this type. This mirror might well have been the first.
10 inch f-20 Primary Mirror damaged. This was to be a primary mirror for an f-20 Off axis Schiefspigler Telescope.
Looking down the focuser. The image of the secondary is clearly visible. The alignment is not off but appears to be due to the position of the small camera lens within the focuser tube. Note the 3 mirror clips holding the 12.5 inch primary within the mirror cell.
Winter observing is often done with the two classic instruments - 4 inch F-15 Edmund Scientific Refractor & and a 4.25 inch Edmund F-10 Reflector. Both from 1960's or early 1970's.
Winter observing is often done with the two classic instruments - 4 inch F-15 Edmund Scientific Refractor & and a 4.25 inch Edmund F-10 Reflector. Both from 1960's or early 1970's.
Winter observing is often done with the two classic instruments - 4 inch F-15 Edmund Scientific Refractor & and a 4.25 inch Edmund F-10 Reflector. Both from 1960's or early 1970's.
See photo in original gallery.
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This site features some great images.