Products
PORTA II A80M
39953
Enquiry Item
Optical tube is high-performance reflecting type which is used for SX equatorial mounts.
Equipped with flip mirror. Optical path can be converted by one touch.
Enquire for more information or email us specifics at sales@astro.com.sg.
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PORTA II A80M
PORTA II Altazimuth Mount + A80M Optical Tube + Eyepieces
- Optical tube is high-performance reflecting type which is used for SX equatorial mounts.
- Equipped with flip mirror. Optical path can be converted by one touch.
- Optional parts (sold separately) for connecting a camera are available. Astro-photography is also possible.
Product No.39953-6
Objective Lens Effective Diameter : 80mm
Focal Distance : 910mm
Optical Tube Length : 915mm
Finderscope : XY Spot Finderscope（Equal size）
Total Weight : 9.2kg（Not including the eyepiece）
Eyepieces Attached : NPL20mm, NPL6mm
※The optical tube can be purchased separately.
Specifications
| PORTA II A80Mf | PORTA II A80M | ||
|---|---|---|---|
| Altazimuth Mount | Refer to PORTA II Altazimuth Mount below | ||
| Optical Tubes | Optical Type | Refractor | Refractor |
| Objective Lens (Primary Mirror) Effective Diameter | 80mm | 80mm | |
| Lens Coating | Multi-coated | Multi-coated | |
| Focal Distance | 910mm | 910mm | |
| Aperture Ratio(F) | F11.4 | F11.4 | |
| Resolution | 1.45s | 1.45s | |
| Limiting Magnitude | 11.3 | 11.3 | |
| Light Gathering Power | 131x | 131x | |
| Size | Length 860mm, Outer Diameter 90mm | Length 915mm, Outer Diameter 90mm | |
| Weight | 3.3kg（main body 2.5kg） | 3.5kg（main body 2.5kg） | |
| Finderscope | 6x30mm（actual field of view 7deg） | XY Spot Finder（equal size） | |
| Eyepiece Part | Parts Attachment Size | Screw-in : 42mm T-ring screw Insert : 31.7mm | Screw-in : 60mm, 42mm T-ring screw Insert : 50.8mm（*1）, 31.7mm（flip mirror attached） |
| Attached Eyepieces | 31.7mm in diameter PL20mm（46x, actual field of view 64min） PL6.3mm（144x, actual field of view 22min） | 31.7mm in diameter NPL20mm（46x, actual field of view 65min） NPL6mm（152x, actual field of view 20min） | |
| Others | Attachment | 2 eyepieces, erect diagonal prism | 2 eyepieces |
| Photography | Enlarging, prime focus, compact digital camera (collimate） photography（*2） | Enlarging, prime focus, compact digital camera（collimate） photography（*2） | |
| Total Weight | 9.0kg（w/o eyepiece） | 9.2kg（w/o eyepiece） |
- *1…An optional accessory (sold separately) is required if using 50.8-mm eyepiece.
- *2…A camera adapter (sold separately) is required.
PORTA II Altazimuth Mount Unit
| Mount Type | Altazimuth Mount |
|---|---|
| Vertical/Horizontal Movement | Worm whole-circle movement, vertical/horizontal slow-motion handles attached, vertical/horizontal freestop, firmness control attached |
| Installment/Uninstallment of Optical Tube | Attachment: installment/uninstallment system （safety screw attached） |
| Maximum Loading Weight | Less than about 5.0kg |
| Weight | 5.7kg（with tripod） |
| Tripod Type | Aluminum dual-step adjustable tripod（accessory tray attached） |
| Tripod Size | Length 90⇔130cm |
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PORTA II A80M
PORTA II Altazimuth Mount + A80M Optical Tube + Eyepieces
- Optical tube is high-performance reflecting type which is used for SX equatorial mounts.
- Equipped with flip mirror. Optical path can be converted by one touch.
- Optional parts (sold separately) for connecting a camera are available. Astro-photography is also possible.
Product No.39953-6
Objective Lens Effective Diameter : 80mm
Focal Distance : 910mm
Optical Tube Length : 915mm
Finderscope : XY Spot Finderscope（Equal size）
Total Weight : 9.2kg（Not including the eyepiece）
Eyepieces Attached : NPL20mm, NPL6mm
※The optical tube can be purchased separately.
Specifications
| PORTA II A80Mf | PORTA II A80M | ||
|---|---|---|---|
| Altazimuth Mount | Refer to PORTA II Altazimuth Mount below | ||
| Optical Tubes | Optical Type | Refractor | Refractor |
| Objective Lens (Primary Mirror) Effective Diameter | 80mm | 80mm | |
| Lens Coating | Multi-coated | Multi-coated | |
| Focal Distance | 910mm | 910mm | |
| Aperture Ratio(F) | F11.4 | F11.4 | |
| Resolution | 1.45s | 1.45s | |
| Limiting Magnitude | 11.3 | 11.3 | |
| Light Gathering Power | 131x | 131x | |
| Size | Length 860mm, Outer Diameter 90mm | Length 915mm, Outer Diameter 90mm | |
| Weight | 3.3kg（main body 2.5kg） | 3.5kg（main body 2.5kg） | |
| Finderscope | 6x30mm（actual field of view 7deg） | XY Spot Finder（equal size） | |
| Eyepiece Part | Parts Attachment Size | Screw-in : 42mm T-ring screw Insert : 31.7mm | Screw-in : 60mm, 42mm T-ring screw Insert : 50.8mm（*1）, 31.7mm（flip mirror attached） |
| Attached Eyepieces | 31.7mm in diameter PL20mm（46x, actual field of view 64min） PL6.3mm（144x, actual field of view 22min） | 31.7mm in diameter NPL20mm（46x, actual field of view 65min） NPL6mm（152x, actual field of view 20min） | |
| Others | Attachment | 2 eyepieces, erect diagonal prism | 2 eyepieces |
| Photography | Enlarging, prime focus, compact digital camera (collimate） photography（*2） | Enlarging, prime focus, compact digital camera（collimate） photography（*2） | |
| Total Weight | 9.0kg（w/o eyepiece） | 9.2kg（w/o eyepiece） |
- *1…An optional accessory (sold separately) is required if using 50.8-mm eyepiece.
- *2…A camera adapter (sold separately) is required.
PORTA II Altazimuth Mount Unit
| Mount Type | Altazimuth Mount |
|---|---|
| Vertical/Horizontal Movement | Worm whole-circle movement, vertical/horizontal slow-motion handles attached, vertical/horizontal freestop, firmness control attached |
| Installment/Uninstallment of Optical Tube | Attachment: installment/uninstallment system （safety screw attached） |
| Maximum Loading Weight | Less than about 5.0kg |
| Weight | 5.7kg（with tripod） |
| Tripod Type | Aluminum dual-step adjustable tripod（accessory tray attached） |
| Tripod Size | Length 90⇔130cm |
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