A little about my new TeleKit that I don't think I have mentioned. The Primary is 20" and the focal length is 107.6"; that makes an f/5.375. Brent Watson bred into me the idea and advantages of long focal ratios and I really thought I would go with a f/6. When I climbed my ladder and dropped the tape measure to get an idea of where I would be I decided to go with an f/5 instead. So I think the f/5.375 is a good compromise. I had a special ladder built. It is an 8' orchard style ladder with the rungs only 8" apart. The wide base makes it really solid and with the short spaced rungs it makes it nice for those in-between situations. Who knows, I might even get Debbie Whitaker (the Ground Queen) to go up a few rungs (she doesnt like heights or ladders). When the Dob is placed vertical and while peering through the eyepiece the top of the ladder is about chest high; just right for holding onto. My lowest power, the 31mm Nagler, gives me 85x with a 0.97 degree FOV. My highest power is a University Optic Ortho at 4mm which gives me 685x with 0.07 degree FOV; things move fast through there. A 41mm Televue Panoptic would give me 64x with 1.06 degree FOV - I feel the tug of a purchase coming on, but I am not sure it would give me that much more. I will have to see if I can barrow Richs sometime for a peek. I can't see all of the Andromeda galaxy with the 31mm but it is still a good view and I cant see all of NGC 7000 (North American Nebula) but who can? I can see most everything else that I am interested in like Planetaries and such and a good bit more detail than my 12.5 f/7. The TeleKit weights a lot, I cant remember exactly, but with the wheel barrow style handles and wheels, I can get it around just fine. I need to get a good ramp to get it in and out of my van. It will be at the Wedge Overlook this Friday night so come by and have a look. JG --------------------------------- Do you Yahoo!? vote.yahoo.com - Register online to vote today!
Hey Jim, Where'd you get your primary? Michael On Oct 14, 2004, at 8:11 AM, Jim Gibson wrote:
A little about my new TeleKit that I don't think I have mentioned. The Primary is 20" and the focal length is 107.6"; that makes an f/5.375.
Brent Watson bred into me the idea and advantages of long focal ratios and I really thought I would go with a f/6. When I climbed my ladder and dropped the tape measure to get an idea of where I would be I decided to go with an f/5 instead. So I think the f/5.375 is a good compromise.
I had a special ladder built. It is an 8' orchard style ladder with the rungs only 8" apart. The wide base makes it really solid and with the short spaced rungs it makes it nice for those in-between situations. Who knows, I might even get Debbie Whitaker (the Ground Queen) to go up a few rungs (she doesnt like heights or ladders). When the Dob is placed vertical and while peering through the eyepiece the top of the ladder is about chest high; just right for holding onto.
My lowest power, the 31mm Nagler, gives me 85x with a 0.97 degree FOV. My highest power is a University Optic Ortho at 4mm which gives me 685x with 0.07 degree FOV; things move fast through there. A 41mm Televue Panoptic would give me 64x with 1.06 degree FOV - I feel the tug of a purchase coming on, but I am not sure it would give me that much more. I will have to see if I can barrow Richs sometime for a peek.
I can't see all of the Andromeda galaxy with the 31mm but it is still a good view and I cant see all of NGC 7000 (North American Nebula) but who can? I can see most everything else that I am interested in like Planetaries and such and a good bit more detail than my 12.5 f/7.
The TeleKit weights a lot, I cant remember exactly, but with the wheel barrow style handles and wheels, I can get it around just fine. I need to get a good ramp to get it in and out of my van.
It will be at the Wedge Overlook this Friday night so come by and have a look.
JG
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Michael Steve Dodds (NOVA Optical) make it. I think I mentioned that I like the "+" he etched in as a center spot. I can see the "+" through a Cheshire collimation tool and the thing lights up when a laser hits it. great mirror. Jim Michael Carnes <moogiebird@earthlink.net> wrote: Hey Jim, Where'd you get your primary? Michael On Oct 14, 2004, at 8:11 AM, Jim Gibson wrote:
A little about my new TeleKit that I don't think I have mentioned. The Primary is 20" and the focal length is 107.6"; that makes an f/5.375.
Brent Watson bred into me the idea and advantages of long focal ratios and I really thought I would go with a f/6. When I climbed my ladder and dropped the tape measure to get an idea of where I would be I decided to go with an f/5 instead. So I think the f/5.375 is a good compromise.
I had a special ladder built. It is an 8' orchard style ladder with the rungs only 8" apart. The wide base makes it really solid and with the short spaced rungs it makes it nice for those in-between situations. Who knows, I might even get Debbie Whitaker (the Ground Queen) to go up a few rungs (she doesnt like heights or ladders). When the Dob is placed vertical and while peering through the eyepiece the top of the ladder is about chest high; just right for holding onto.
My lowest power, the 31mm Nagler, gives me 85x with a 0.97 degree FOV. My highest power is a University Optic Ortho at 4mm which gives me 685x with 0.07 degree FOV; things move fast through there. A 41mm Televue Panoptic would give me 64x with 1.06 degree FOV - I feel the tug of a purchase coming on, but I am not sure it would give me that much more. I will have to see if I can barrow Richs sometime for a peek.
I can't see all of the Andromeda galaxy with the 31mm but it is still a good view and I cant see all of NGC 7000 (North American Nebula) but who can? I can see most everything else that I am interested in like Planetaries and such and a good bit more detail than my 12.5 f/7.
The TeleKit weights a lot, I cant remember exactly, but with the wheel barrow style handles and wheels, I can get it around just fine. I need to get a good ramp to get it in and out of my van.
It will be at the Wedge Overlook this Friday night so come by and have a look.
JG
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Jim, I'm betting you'll be happier with the 31mm because of the smaller exit pupil (5.8mm). The 41 would give you just a tad bigger field but with an exit pupil of 7.6mm you're wasting light. If you do the pepsi challenge with the 41mm I bet you'll notice that the 31 has better contrast and more resolution. Cheers, Dave On Thursday, October 14, 2004, at 08:54 AM, Jim Gibson wrote:
My lowest power, the 31mm Nagler, gives me 85x with a 0.97 degree FOV. My highest power is a University Optic Ortho at 4mm which gives me 685x with 0.07 degree FOV; things move fast through there. A 41mm Televue Panoptic would give me 64x with 1.06 degree FOV - I feel the tug of a purchase coming on, but I am not sure it would give me that much more. I will have to see if I can barrow Richs sometime for a peek.
I've heard of his mirrors, but haven't had a chance to peek through one. Hope I run into you and your new toy sometime. Michael
Michael Steve Dodds (NOVA Optical) make it. I think I mentioned that I like the "+" he etched in as a center spot. I can see the "+" through a Cheshire collimation tool and the thing lights up when a laser hits it.
great mirror.
Jim
Michael Carnes <moogiebird@earthlink.net> wrote: Hey Jim, Where'd you get your primary?
Michael On Oct 14, 2004, at 8:11 AM, Jim Gibson wrote:
A little about my new TeleKit that I don't think I have mentioned. The Primary is 20" and the focal length is 107.6"; that makes an f/5.375.
Brent Watson bred into me the idea and advantages of long focal ratios and I really thought I would go with a f/6. When I climbed my ladder and dropped the tape measure to get an idea of where I would be I decided to go with an f/5 instead. So I think the f/5.375 is a good compromise.
I had a special ladder built. It is an 8' orchard style ladder with the rungs only 8" apart. The wide base makes it really solid and with the short spaced rungs it makes it nice for those in-between situations. Who knows, I might even get Debbie Whitaker (the Ground Queen) to go up a few rungs (she doesnt like heights or ladders). When the Dob is placed vertical and while peering through the eyepiece the top of the ladder is about chest high; just right for holding onto.
My lowest power, the 31mm Nagler, gives me 85x with a 0.97 degree FOV. My highest power is a University Optic Ortho at 4mm which gives me 685x with 0.07 degree FOV; things move fast through there. A 41mm Televue Panoptic would give me 64x with 1.06 degree FOV - I feel the tug of a purchase coming on, but I am not sure it would give me that much more. I will have to see if I can barrow Richs sometime for a peek.
I can't see all of the Andromeda galaxy with the 31mm but it is still a good view and I cant see all of NGC 7000 (North American Nebula) but who can? I can see most everything else that I am interested in like Planetaries and such and a good bit more detail than my 12.5 f/7.
The TeleKit weights a lot, I cant remember exactly, but with the wheel barrow style handles and wheels, I can get it around just fine. I need to get a good ramp to get it in and out of my van.
It will be at the Wedge Overlook this Friday night so come by and have a look.
JG
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Michael, a few years ago Steve graciously gave us list members a tour of his facility. Fascinating guy & business, he may be persuaded to give us a repeat one day. --- Michael Carnes <moogiebird@earthlink.net> wrote:
I've heard of his mirrors, but haven't had a chance to peek through one. Hope I run into you and your new toy sometime.
Michael
Michael Steve Dodds (NOVA Optical) make it. I think I mentioned that I like the "+" he etched in as a center spot. I can see the "+" through a Cheshire collimation tool and the thing lights up when a laser hits it.
great mirror.
Jim
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Neato. Hope we can do it some time.
Michael, a few years ago Steve graciously gave us list members a tour of his facility. Fascinating guy & business, he may be persuaded to give us a repeat one day.
--- Michael Carnes <moogiebird@earthlink.net> wrote:
I've heard of his mirrors, but haven't had a chance to peek through one. Hope I run into you and your new toy sometime.
Michael
Michael Steve Dodds (NOVA Optical) make it. I think I mentioned that I like the "+" he etched in as a center spot. I can see the "+" through a Cheshire collimation tool and the thing lights up when a laser hits it.
great mirror.
Jim
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You and a lot of other people will have several chances to peek through on of his mirrors since Steve is making the optics for the Big Scope at SPOC. Patrick Michael Carnes wrote:
I've heard of his mirrors, but haven't had a chance to peek through one. Hope I run into you and your new toy sometime.
Michael
Michael Steve Dodds (NOVA Optical) make it. I think I mentioned that I like the "+" he etched in as a center spot. I can see the "+" through a Cheshire collimation tool and the thing lights up when a laser hits it.
great mirror.
JimL
Partick, Any idea on when the large mirror will be done? Also, I really miss your daily newsletters - am I off the list or were they stopped? Also, my wife has been veyr ill and in the hospital and I tried to figure out what happened about my SLAS membership (i got no notice to renew but thought i did this summer). but I have had no time to try to call anyone to find out. I DO want to continue but don't have the time to bird dog problem and can't seem to get into the website to take care of it - kind of frustarting to be able to take care of it easily. Will ahev to wait till my wife gets out of hospital - all my minuets go to work and to her. but can i still get youur daily newsletter? Thanks Patrick, Jim Stitley Patrick Wiggins <paw@trilobyte.net> wrote: You and a lot of other people will have several chances to peek through on of his mirrors since Steve is making the optics for the Big Scope at SPOC. Patrick Michael Carnes wrote:
I've heard of his mirrors, but haven't had a chance to peek through one. Hope I run into you and your new toy sometime.
Michael
Michael Steve Dodds (NOVA Optical) make it. I think I mentioned that I like the "+" he etched in as a center spot. I can see the "+" through a Cheshire collimation tool and the thing lights up when a laser hits it.
great mirror.
JimL
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Jim S., Regarding the SLAS renewal, I'm not aware of any way to directly renew via the website but there is an application/renewal form on the site at: http://slas.ws/application.htm Other than sending that in, I would get in touch with Charlie Green to ask what the status of your membership is at either (801)253-9003 or treasurer@slas.ws Regards, Dave On Friday, October 15, 2004, at 10:49 AM, Jim Stitley wrote:
I tried to figure out what happened about my SLAS membership (i got no notice to renew but thought i did this summer). but I have had no time to try to call anyone to find out. I DO want to continue but don't have the time to bird dog problem and can't seem to get into the website to take care of it - kind of frustarting to be able to take care of it easily.
Jim, Charlie Green enters all the updated financial membership information, as he is the secretary/treasurer. We have offered ways to automate the renewal process online, but the board didn't want to pursue that yet. Maybe it needs to be brought up in a general meeting to see what everyone else thinks. Your account expired at the end of July. If you gave Charlie a check then just send him a quick note. Ken -----Original Message----- From: utah-astronomy-bounces+killerken=killerken.com@mailman.xmission.com [mailto:utah-astronomy-bounces+killerken=killerken.com@mailman.xmission. com] On Behalf Of David L Bennett Sent: Friday, October 15, 2004 11:10 AM To: Utah Astronomy Subject: Re: [Utah-astronomy] Re: New TeleKit Jim S., Regarding the SLAS renewal, I'm not aware of any way to directly renew via the website but there is an application/renewal form on the site at: http://slas.ws/application.htm Other than sending that in, I would get in touch with Charlie Green to ask what the status of your membership is at either (801)253-9003 or treasurer@slas.ws Regards, Dave On Friday, October 15, 2004, at 10:49 AM, Jim Stitley wrote:
I tried to figure out what happened about my SLAS membership (i got no notice to renew but thought i did this summer). but I have had no time
to try to call anyone to find out. I DO want to continue but don't have the time to bird dog problem and can't seem to get into the website to take care of it - kind of frustarting to be able to take care of it easily.
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Hi Jim, Jim Stitley wrote:
Partick, Any idea on when the large mirror will be done?
I'm told they (primary, secondary and tertiary) are nearly done now. What remains is for Steve to match them up and have them aluminized. Alas, the aluminizing may take a while as there are some legal wranglings going on with the local place we'd hoped to have the job done at so they will probably have to be sent out of state.
Also, I really miss your daily newsletters - am I off the list or were they stopped? It is sent to the SLAS membership roster and I see your membership expired in July. Sorry. I do have a slightly edited version for non-SLAS folk. I could put you (and anyone else) on that list if you like.
I tried to figure out what happened about my SLAS membership (i got no notice to renew but thought i did this summer). Best to check with SLAS Sec/Treas Charlie Green on renewals/reinstatments. You can reach his at cgreenx2@msn.com.
...but can i still get youur daily newsletter? Sure. Just let me know if you'd like the non-SLAS version.
Patrick
participants (7)
-
Chuck Hards -
David L Bennett -
Jim Gibson -
Jim Stitley -
Ken Warner -
Michael Carnes -
Patrick Wiggins