TEC 8"F15.5 Maksutov-Cassegrain
- Auction No.:
- 15863
- Current Bid:
- $15300.00
- High Bidder:
- Ronald Scarboro
- Bid History:
- 55 Bids [View History]
- Location:
- Machesney Park, IL - United States
- Started:
- 09/18/2022 03:25AM
- Ends:
- 09/24/2022 08:34PM
- Shipping:
- Buyer pays shipping
- Payment:
- PayPal, Credit Card, Personal or Cashier's Check, Bank to Bank Wire Transfer
- Hits:
- 3487
Superb hand corrected TEC 8" F15.5 Maksutov-Cassegrain, with low-expansion quartz optics. The ultimate mid-sized lunar/planetary and double-star optical system. The design is coma-free over a 50mm field and can be used with wide field 2" oculars, 62x with a 50mm eyepiece, up to 620x (and more) with a 5mm eyepiece. The optics on this scope are super smooth and very accurate. The quartz primary allows this scope to settle quickly in dropping temperatures.
At high power, you will see a clean, crisp Airy disc with one diffraction ring and a hint of a second ring. Close doubles are easy with this scope, and planet details are shown in high contrast under good seeing conditions. You will think you are looking thru a premium 8" refractor. Focus is achieved with a special ruby-tipped micrometer on a center-point sliding mirror tube. Imperceptible image shift even at very high powers. In good seeing, there is no ambiguity at the exact focus point where the image becomes razor sharp.
Multi-coated optics insure high-contrast images. Internal baffles prevent stray light from nearby bright objects from reaching the focus point. Internal mixing fan behind the mirror allows fast cool-down of the primary mirror. Images are sharp and contrasty within minutes even on cool nights.
This scope is collimated and in excellent condition.
Specifications:
Clear aperture: 202mm, 8"
Secondary obstruction: 54.6mm, 2.15", 27% by diameter, 7.3% by area
Focal length: 3100mm, 122", F15.5 focal ratio
Tube weight: 9.94 kg, 21.9 lb
Tube dimension: 254mm x 737mm, 10" x 29"
Multi-coated optics on corrector, primary and secondary mirrors
Quartz primary and secondary mirrors
Scope includes:
Internal cooling fan (requires 9-volt battery power)
Captain's wheel for ease in handling
Provision for 2 sets of finder brackets
Matching pair of mounting rings
Scope is shipped in well-padded shipping boxes
Marjorie Christen, Astro-Physics
Time Placed | User | Bid Amount |
---|---|---|
09/25/2022 03:28AM | Ronald Scarboro | $15300.00 [ Auto Bid ] |
09/25/2022 03:28AM | Frank Skrobak | $15200.00 |
09/25/2022 03:28AM | Ronald Scarboro | $15100.00 [ Auto Bid ] |
09/25/2022 03:28AM | Frank Skrobak | $15000.00 |
09/25/2022 03:28AM | Ronald Scarboro | $14900.00 [ Auto Bid ] |
09/25/2022 03:28AM | Frank Skrobak | $14800.00 |
09/25/2022 03:26AM | Ronald Scarboro | $14700.00 [ Auto Bid ] |
09/25/2022 03:26AM | Frank Skrobak | $14600.00 |
09/25/2022 03:25AM | Ronald Scarboro | $14300.00 [ Auto Bid ] |
09/25/2022 03:25AM | Frank Skrobak | $14200.00 |
09/25/2022 03:23AM | Ronald Scarboro | $13700.00 [ Auto Bid ] |
09/25/2022 03:23AM | Frank Skrobak | $13600.00 |
09/25/2022 03:22AM | Ronald Scarboro | $13200.00 [ Auto Bid ] |
09/25/2022 03:22AM | Frank Skrobak | $13100.00 |
09/25/2022 03:22AM | Ronald Scarboro | $12900.00 [ Auto Bid ] |
09/25/2022 03:22AM | Frank Skrobak | $12800.00 |
09/25/2022 03:21AM | Ronald Scarboro | $12700.00 [ Auto Bid ] |
09/25/2022 03:21AM | Frank Skrobak | $12600.00 |
09/25/2022 03:20AM | Ronald Scarboro | $11800.00 [ Auto Bid ] |
09/25/2022 03:20AM | Frank Skrobak | $11700.00 |
09/25/2022 03:20AM | Ronald Scarboro | $11300.00 [ Auto Bid ] |
09/25/2022 03:20AM | Frank Skrobak | $11200.00 |
09/25/2022 03:19AM | Ronald Scarboro | $10700.00 [ Auto Bid ] |
09/25/2022 03:19AM | Frank Skrobak | $10600.00 |
09/25/2022 03:19AM | Ronald Scarboro | $10300.00 [ Auto Bid ] |
09/25/2022 03:19AM | Frank Skrobak | $10200.00 |
09/25/2022 03:13AM | Ronald Scarboro | $10100.00 |
09/25/2022 03:01AM | Frank Skrobak | $8400.00 [ Auto Bid ] |
09/25/2022 03:01AM | Terry Richardson | $8300.00 |
09/25/2022 03:00AM | Frank Skrobak | $8200.00 [ Auto Bid ] |
09/25/2022 03:00AM | Terry Richardson | $8100.00 |
09/25/2022 01:24AM | Frank Skrobak | $7800.00 |
09/24/2022 11:17PM | stephen coale | $7700.00 |
09/24/2022 08:26AM | Paul Morow | $7550.00 |
09/24/2022 06:59AM | stephen coale | $7450.00 |
09/24/2022 06:47AM | Frank Skrobak | $7150.00 |
09/24/2022 06:02AM | stephen coale | $7050.00 [ Auto Bid ] |
09/24/2022 06:02AM | Frank Skrobak | $7050.00 |
09/24/2022 06:01AM | stephen coale | $6650.00 [ Auto Bid ] |
09/24/2022 06:01AM | Frank Skrobak | $6550.00 |
09/24/2022 03:47AM | stephen coale | $6450.00 |
09/23/2022 11:26AM | Brian Wang | $6350.00 |
09/23/2022 11:26AM | Khaldun Maruf | $6250.00 [ Auto Bid ] |
09/23/2022 11:26AM | Brian Wang | $6200.00 |
09/22/2022 10:40AM | Khaldun Maruf | $6100.00 |
09/22/2022 07:01AM | Les Poltrack | $6000.00 |
09/22/2022 01:25AM | Les Poltrack | $5900.00 |
09/21/2022 10:37PM | Paul Morow | $5800.00 |
09/20/2022 11:52PM | James Head | $5700.00 [ Auto Bid ] |
09/20/2022 11:52PM | Brent Boshart | $5700.00 |
09/20/2022 10:47PM | James Head | $5600.00 [ Auto Bid ] |
09/20/2022 10:47PM | John Gleason | $5500.00 |
09/20/2022 10:02PM | James Head | $5300.00 |
09/20/2022 10:26AM | Jared Seay | $5200.00 |
09/19/2022 01:47AM | Scott Mitchell | $5100.00 |
Marjorie Christen (MarjChristen)
Rating: (Not Rated)
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