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Byron Davies

M-52, NGC-7635, SH2-157, SH2-158, SH2-159, SH2-161, NGC-7510

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Posts Made By: john porretta

April 11, 2005 07:58 PM Forum: Equipment Talk

fork mounted 9" refractor

Posted By john porretta
does anyone have any ideas of fork mounting a 9" F/12 lenght 96" weight 100 lbs refractor or would it be wiser to do this on a equitorial mount? thanks john

May 11, 2005 03:19 AM Forum: Telescope Making

optical coatings

Posted By john porretta
Would anyone be able to suggest where I could get my 9" achromat objective cleaned and recoated. thanks john

September 30, 2005 12:57 PM Forum: Telescope Making

mount gears

Posted By john porretta
I was wandering if anyone had dealt with Richard Gierlinger or purchased any of the gears he makes I am concidering a purchase and would appreciate any feedback. Thanks Regards john

October 2, 2005 01:57 PM Forum: Equipment Talk

mount gears

Posted By john porretta
does anyone have any feedback on richard gierlinger mount gears regards john

January 7, 2006 03:23 AM Forum: Telescope Making

setting circles

Posted By john porretta
does anyone have atemplate or idea as to go about making ones own seting circles I would like them machined in aluminum I and not sure how to ingrave the calibrations thanks john

February 4, 2006 09:24 AM Forum: Telescope Making

A telescope makers Pot Of Gold!!!

Posted By john porretta
I recently finished a rather ambitious project of building a 8.5" refractor which bieng my first was to say the least quite puzzling at times. I accomplished this with the help of Parallax Instruments, they supplied me with my tube, baffles and a wealth of expert advice from Joe Nastasi.I found dealing with Joe to be acommodating and knowledgeable, his deliveries were prompt and the workmanship was great. I would recommend anyone venturing to build any type of scope to seriously check this company out. For those looking for ready built systems Parallax Instruments is a great contender. I give them five stars and and once again thank you Mr. Nastasi

February 4, 2006 10:16 AM Forum: Telescope Making

manual setting circles

Posted By john porretta
I would like to equip my ge mount with manual setting circles but do not know where to place the pointers on the RA and DEc axis could someone offer me some guidance with maybe a drawing thanks john

March 6, 2006 02:02 AM Forum: Telescope Making

goto control

Posted By john porretta
I have a custom built GE mount with a payload capacity of 150 LBS im am now wanting to furnish it with a goto system would appreciate feedback on what is out there I would want something that would be fairly high end thanks john

March 17, 2006 01:22 AM Forum: Telescope Making

FS2 telescope control system

Posted By john porretta
I would appreciate any feed back on the FS2 telescope control system from astro electronics. John

March 17, 2006 01:22 AM Forum: Telescope Making

FS2 telescope control system

Posted By john porretta
I would appreciate any feed back on the FS2 telescope control system from astro electronics. John

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