Products
PORTA II ED80Sf
39956
- $2,385.00
Optical tube with ED（Extremely low Dispersion glass）lens inside captures a high-contrast and clear field of view with highly reduced chromatic aberration.
Enquire for more information or email us specifics at sales@astro.com.sg.
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PORTA II ED80Sf
PORTA II Altazimuth Mount + ED80Sf Optical Tube + Eyepieces
- Optical tube with ED（Extremely low Dispersion glass）lens inside captures a high-contrast and clear field of view with highly reduced chromatic aberration.
- High-quality optical tubes with low prices, \"f Series\"
Product No.39956-7
Objective Lens Effective Diameter : 80mm
Focal Distance : 600mm
Optical Tube Length : 570mm
Finderscope : 9x50mm
Total Weight : 10.5kg（Not including the eyepiece）
Eyepieces Attached : NPL20mm, NPL6mm
※The optical tube can be purchased separately.
Specifications
| PORTA II ED80Sf | ||
|---|---|---|
| Altazimuth Mount | Refer to PORTA II Altazimuth Mount above | |
| Optical Tubes | Optical Type | Refractor |
| Objective Lens (Primary Mirror) Effective Diameter | 80mm | |
| Lens Coating | Multi-coated | |
| Focal Distance | 600m | |
| Aperture Ratio(F) | F7.5 | |
| Resolution | 1.45s | |
| Limiting Magnitude | 11.3 | |
| Light Gathering Power | 131x | |
| Size | Length 570mm, Outer Diameter 100mm | |
| Weight | 4.8kg（main body 3.4kg） | |
| Finderscope | 9x50mm（actual field of view 4.8deg） | |
| Eyepiece Part | Parts Attachment Size | Screw-in : 42mm T-ring screw Insert : 50.8mm（*1）, 31.7mm（flip mirror attached） |
| Attached Eyepieces | 31.7mm in diameter NPL20mm（30x, actual field of view 100min） NPL6mm（100x, actual field of view 30min） | |
| Others | Attachment | 2 eyepieces, aluminum case for optical tube |
| Photography | Enlarging, prime focus, compact digital camera（collimate） photography（*2） | |
| Total Weight | 10.5kg（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 ED80Sf
PORTA II Altazimuth Mount + ED80Sf Optical Tube + Eyepieces
- Optical tube with ED（Extremely low Dispersion glass）lens inside captures a high-contrast and clear field of view with highly reduced chromatic aberration.
- High-quality optical tubes with low prices, \"f Series\"
Product No.39956-7
Objective Lens Effective Diameter : 80mm
Focal Distance : 600mm
Optical Tube Length : 570mm
Finderscope : 9x50mm
Total Weight : 10.5kg（Not including the eyepiece）
Eyepieces Attached : NPL20mm, NPL6mm
※The optical tube can be purchased separately.
Specifications
| PORTA II ED80Sf | ||
|---|---|---|
| Altazimuth Mount | Refer to PORTA II Altazimuth Mount above | |
| Optical Tubes | Optical Type | Refractor |
| Objective Lens (Primary Mirror) Effective Diameter | 80mm | |
| Lens Coating | Multi-coated | |
| Focal Distance | 600m | |
| Aperture Ratio(F) | F7.5 | |
| Resolution | 1.45s | |
| Limiting Magnitude | 11.3 | |
| Light Gathering Power | 131x | |
| Size | Length 570mm, Outer Diameter 100mm | |
| Weight | 4.8kg（main body 3.4kg） | |
| Finderscope | 9x50mm（actual field of view 4.8deg） | |
| Eyepiece Part | Parts Attachment Size | Screw-in : 42mm T-ring screw Insert : 50.8mm（*1）, 31.7mm（flip mirror attached） |
| Attached Eyepieces | 31.7mm in diameter NPL20mm（30x, actual field of view 100min） NPL6mm（100x, actual field of view 30min） | |
| Others | Attachment | 2 eyepieces, aluminum case for optical tube |
| Photography | Enlarging, prime focus, compact digital camera（collimate） photography（*2） | |
| Total Weight | 10.5kg（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 |