Popular Astrograph
Ultra-Cat 131 · 30th Anniversary Limited Edition
Sale price$5,498.00 USD
Ultra-Cat 131
Sale price$5,398.00 USD
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Sale price$1,398.00 USD
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Cat 91 WIFD
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Series Comparison
Clasic-CAT |
Ultra-CAT |
Pleiades |
Guider |
|
|---|---|---|---|---|
| Lens Type |
![]() Petzval |
![]() Advanced Petzval |
![]() 7-Elements |
![]() Doublet |
| Diameter | 51mm - 71mm | 56mm - 131mm | 68mm - 181mm | 32mm - 61mm |
| Focal Length | 178mm - 350mm | 269mm - 518mm | 260mm - 998mm | 120mm - 360mm |
| Application | All Level Imaging | Advanced Imaging | Professional Imaging | Guiding & Imaging |
| Flattener | No Need | No Need | No Need | Optional |
Gran Turismo |
Fluorostar |
Zenithstar |
|
|---|---|---|---|
| Lens Type |
![]() Triplet |
![]() Triplet |
![]() Doublet |
| Diameter | 71mm - 81mm | 91mm - 156mm | 61mm - 81mm |
| Focal Length | 478mm - 419mm | 540mm - 1217mm | 360mm - 559mm |
| Application | Visual & Imaging | Visual & Imaging | Visual & Imaging |
| Flattener | Optional | Optional | Optional |
Clasic-CAT |
Ultra-CAT |
Pleiades |
Guider |
|
|---|---|---|---|---|
| Lens Type |
![]() Petzval |
![]() Advanced Petzval |
![]() 7-Elements |
![]() Doublet |
| Diameter | 51mm - 71mm | 56mm - 131mm | 68mm - 181mm | 32mm - 61mm |
| Focal Length | 178mm - 350mm | 269mm - 518mm | 260mm - 998mm | 120mm - 360mm |
| Application | All Level Imaging | Advanced Imaging | Professional Imaging | Guiding & Imaging |
| Flattener | No Need | No Need | No Need | Optional |
Gran Turismo |
Fluorostar |
Zenithstar |
|
|---|---|---|---|
| Lens Type |
![]() Triplet |
![]() Triplet |
![]() Doublet |
| Diameter | 71mm - 81mm | 91mm - 156mm | 61mm - 81mm |
| Focal Length | 478mm - 419mm | 540mm - 1217mm | 360mm - 559mm |
| Application | Visual & Imaging | Visual & Imaging | Visual & Imaging |
| Flattener | Optional | Optional | Optional |






















