I think it was in Texereau's classic book on mirror making that I read that this idea can be used during polishing to see if the glass is fully polished. In a...
... Scattering from a rough surface is a form of reflection. It's just that the reflections happen over a wide range of angles, because different parts of the...
... Scattering from a rough surface is call diffuse reflection. Reflection from a smooth surface is called specular reflection. With a mirror you have mostly...
Gary: How much power were you able to use last night? How would you rate the seeing on the Pickering scale? James James Mulherin Optical Mechanics, Inc. ...
It was low - my pre-OMI 225x. But I am taking my time getting all up and running properly. g. ... the ... and ... choice - ... components ... will ... absorbs....
Has anyone heard from Steve Swayze, of Swayze Optical lately? My emails to him appear to be ignored, and the last time I was able to speak to him on the phone...
I talked to Steve about two or three weeks ago on the phone I find this is the best way to contact him, I was ringing just to chat so I don't know what his ...
Pierre, I would concur that a phone call is the best, probably in the afternoon PST. I know Steve and trust him. He will do what he promised. Mike ... able to...
I am just about finished setting up my Obsession 12.5. I have kind of hit a wall with adjusting the sling, and could use some help. Indeed, my efforts so far...
... you got it right, the sling only works with gravity, to keep the mirror from touching the clip posts when the scope is aimed lower than the zenith. all...
Hi Paul, I don't have my Obsession yet, but you may also want to post this question on the obessionusers group on Yahoo. Clear Skies, Lee ... follow ... ...
Hello everyone, I was wondering if anyone had any opinions on the ball and socket truss tube connectors (primarily those for the secondary cage) from ...
I have used them on my 16" binoscope and they work well with good repeatability in my setup. They are a bit on the heavy side if you have a strict weight ...
Hi All, I am looking for a small, lightweight steel plate with two sides at 90 degrees that I can use to mount my Sky Commander to the rocker box of my TScope....
Vid and Lee, thanks for the responses. Lee, I did post the same question on the Obsession group - twice. It has yet to show, so either Yahoo ate the message,...
I own a 14" TScope and I velcroed the Sky Commander to the mirror box. I push/pull the scope from the mirror box end when positioning using the Sky Commander. ...
Paul, ... One technique I use that makes sling adjustment easier is to partially tighten the sling bolt so that it can hold the weight of the mirror but can...
The telescope I've ordered has one-inch diameter truss poles. I'd like to know who sells black foam insulation that would fit these size poles. Does anyone...
I've seen it at Home Despot. If they don't have it in stock, they can always order it for you. Probably stores like Ace or Lowe's would have it also. Another...
Kevin, I've got the Moonlite connectors on both my mirror box and upper cage. I find that getting the poles fastened in the lower blocks so that they line up...
Just finished my 17.5" f5 Dob (Discovery primary) about a week ago. I've posted a few pictures of it in my photo album (Tim Cross) in case anyone wants a peek....
... ok, i have never seen the 12 but i am assuming that the sling bolts are as follows (from the inside): sling bolt, nut 1 (inside box), star washer 1...
... tim , you did a great job! i like your felt coated sling, i have not seen that before, but it makes a lot of sense. i must caution you that when you...
Vid, What's the best way to charge the batteries in this situation? Is proper ventilation enough to charge them up safely and without damage to my mirror's...
... if you could make the batteries removable somehow (i know they are zip tied in right now) that would be perfect. i would just make a bracket that could...
Kevin, The ball and socket connectors are very effective and simple to use as long as you don't have them at both ends - hard to get the poles to stand up that...
Jim, I have mine on the upper cage of my 18"Obsession. I use Velcro and it can be positioned in many attitudes,to suit the user. I have created a photo album...
Hi Frank! I respectfully beg to differ....I have little trouble with ball & sockets on both ends. I put the poles in the mirror box sockets and tighten the...
Hello all, recently I was at the Gilmer Wood company. They have an amazing amout/selection of exotic hardwoods that are perfect for use in constructing rocker...
I'd just done a much needed overhaul of the photos pages on my 16" binoscope website. I now have about 80 photos of various construction, setting up and design...
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