Telescopi Italiani TI35 f/5.0 Modified Harmer Wynne Astrograph
Starting Price: $0.00
Price as Configured: $0.00
Price as Configured: $0.00
Brand: Telescopi Italiani / SKU: TI-35-5.0
The Italian Telescopes TI35 f/5.0 is a 350mm aperture astrograph built for imagers who want 1750mm of focal length, an exceptional 87mm diffraction-limited corrected field, and a design light enough to travel. Its Modified Harmer Wynne optical system with three-element ED corrector delivers true diffraction-limited performance from 400nm to 1.2 microns — covering broadband, narrowband, and near-infrared imaging in a single instrument. Deep Space Products is the U.S. dealer for Italian Telescopes and can help you pair the TI35 f/5.0 with the right mount and imaging train for your setup. Contact us to discuss your configuration.
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TI35 f/5.0 — Specifications
| Brand | Telescopi Italiani |
| Optical Design | Modified Harmer Wynne |
| Clear Aperture | 350mm (13.8") |
| Focal Length | 1,750mm |
| Focal Ratio | f/5.0 |
| Corrector | 116mm, 3-element ED glass |
| Central Obstruction | 52% by diameter |
| Diffraction Limited Field | 85mm diameter |
| Spot Diagram RMS (26mm off-axis) | 2.29 µm (polychromatic 400–700nm) |
| Spot Diagram RMS (30mm off-axis) | 3.90 µm (polychromatic 400–700nm) |
| Vignetting (26mm off-axis) | 6.0% |
| Vignetting (30mm off-axis) | 9.0% |
| Spectral Correction Range | 400nm – 1,200nm |
| Back Focus (from rear flange) | 130mm |
| Mirror Material (standard) | Quartz, aluminum enhanced coating |
| Mirror Material (optional upgrade) | Fused silica (quartz) lightweight — near-zero CTE |
| Primary Mirror | Aspheric |
| Secondary Mirror | Spherical |
| Tube/Structure Material | Full carbon fiber truss + carbon fiber sandwich structural body |
| Collimation System | Proprietary X-Y secondary mirror collimation |
| Focuser | Built-in electronic secondary mirror focuser (ASCOM Alpaca) |
| Thermal Control | Fully automated thermal control system |
| Connectivity | WiFi + Ethernet |
| Software Compatibility | ASCOM Alpaca |
| OTA Length | 860mm (33.9") |
| OTA Diameter | 446mm (17.6") |
| OTA Weight | 24 kg (53 lbs) |
| Optional: Field Rotator | TI110 (ASCOM Alpaca compatible) |
| Optional: Automated Dust Cover | ASCOM Alpaca compatible |
| Optional: Dovetail System | TI-112 quick-release dovetail for OTA balancing |
| Country of Manufacture | Italy |
