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Rich Strassberg
member
Reged: 07/30/09
Posts: 16
Loc: Los Angeles, CA
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Greetings! What are the main differences between the Oberwerk and the Universal Astronomics Surveyor's Tripods, other than price and appearance?
I'm considering one to mount 16X70's on, with a UA PMount; moreover, l might also substitute with the use of a Bogen 501 fluid head or 410 Geared Head, depending on feedback from this forum.
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Rich V.
Pooh-Bah
Reged: 01/02/05
Posts: 1393
Loc: Carson Valley, Nevada, USA
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Rich, a light surveyor works fine with a light Unimount. Consider one with an adjustable speader for versatility. They're simple and sturdy.
If you plan on using one tripod for p-gram use as well as video head use, I recommend one of the geared column tripods with 26# capacity like the Manfrotto 475. The geared column comes in handy for comfortable use with the video head. Every time you change the angle of the binocular you'll need to raise or lower the head a little; it's nice to crank it up or down.
Rich V
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Binoculars:
33/50/75/150x100 Saturn III, 16x70 FMT-SX, 10x50 PCF-V, 10x43 DCF-SP, 10x35 E2, 7x35 E, 8x30 E2, 7x26 Custom, 8x23AS Diplomat, 8x23 Travelite
Scopes:
C9.25, 6" f8 reflector, SV80S
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EdZ
Professor EdZ
Reged: 02/15/02
Posts: 14713
Loc: Cumberland, R I , USA42N71.4W
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Standard large wood surveying tripods such as my old UA all black with single leg lock and my realatively newer UA black and natural wood, when spread to a 60" triangular base the top plate is 64" high. They are variable in setup, so if you set the legs to a 48" triangular base the top plate will be 67" high. Although now a different color, this seems to be what UA offers as their heavy wood tripod and probably similar to the Oberwerk 10" upgrade mentioned below.
the Oberwerk surveyor tripod that comes with the BT100, also in different wood sold as the Jharah wood tripod, has a fixed spreader just like those on telescope tripods, with holes to attached a standard triangular tray. The base spreads to 44" and the top plate is 54" high. This is the currently offered Oberwerk Wooden Tripod. They do offer a taller (gain 10") upgrade in the standard wood.
Oberwerk sells a deluxe heavy duty wood surveyor tripod for heavy loads. It has double leg locks screw type at bottom and lever type at top of leg. The base when spread to a 66" triangular base puts the top plate at 72" high. I can mount my GPDX equatoral mount on top of this tripod and the top of the EQ mount will be nearly 7' high. This allows me to use my 48" long CR150 telescope, when pointed nearly straight up, from a standing position. The eyepiece will be approx 5' off the ground. This is by far the most robust and tallest of the surveyor tripods.
A light surveyor maxes out even with a Unimount Light when you've got 8# of binocular and 12.5# of counteweights. That's about a 26# to 28# load. When I was testing UA Unimount for my Mounts article, I found the osscillations never settled out. Larry recommended a Medium weight surveyor. That helped.
edz
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Teach a kid something today. The feeling you'll get is one of life's greatest rewards.
member#21
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Les
professor emeritus
Reged: 04/22/06
Posts: 730
Loc: Maryland
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The standard Oberwerks tripod has single leg locks. It is made out of an extremely light weight wood. This makes it easy to carry into the field but is not as rigid as others I have used. I would consider it light duty. I have a BT80 mounted on a Helix mount on this tripod. There is noticeable flexure. But since the max power I use in the BT80 is 29X it is not a problem. I think using the BT100 at higher power would be annoying on this setup.
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Les
Canon 10x42L IS
Oberwerks BT80/45, Helix Hercules mount on Oberwerks Standard Tripod
Swift 8x44ED Ultralite
Questar 50th Anniversary Model, 501 head on Manfrotto 475 tripod
Stellarvue SV90T 90mm Fluorite refractor Bogen 3236/Televue Tele-Pod Head
Questar 7 Astro
Vixen GP-DX on Baader Surveyor Tripod
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Rich Strassberg
member
Reged: 07/30/09
Posts: 16
Loc: Los Angeles, CA
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Thanks to all of your responses. They were extremely helpful. I will be getting the 475 tripod with the 501HDV head.
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