Omegon 80/500 Pro APO ED Carbon OTA + Field Flattener: This complete astrophotography solution combines the excellent optics of the Omegon 80/500 Pro APO with a matching 2″ field flattener. The result: razor-sharp, edge-to-edge images across the entire image plane - even on full-frame cameras. Thanks to FPL-53 glass and a thermally stable carbon tube, this system is made for high performance in a light and mobile design.
✓ TrueColor ED lens (FPL-53 + S-NBM51) without color errors
✓ Perfectly flat image with the included 2″ field flattener
✓ Carbon tube: lightweight, rigid and temperature stable
✓ 2″ Power Linear Crayford focuser with 1:10 micro fine adjustment
✓ Ideal for use with DSLRs or CMOS astro cameras
✓ Supplied in sturdy aluminum transport case
The flattener corrects the field of view for image sensors up to full-frame without adding magnification. This maintains the focal length of 500 mm, with a beautifully wide field of view - perfect for nebulae, star fields and galaxy objects.
Technical specifications
| Feature | Value |
|---|---|
| Object type | Apochromatic doublet: FPL-53 + S-NBM51 |
| Opening | 80 mm |
| Focal length | 500 mm |
| Opening ratio | f/6,3 |
| Backfocus | approx. 55 mm from flattener |
| Focuser | 2″ Crayford with 1:10 fine adjustment, 360° rotatable |
| Connections | 2″, 1.25″, M48 for flattener |
| Field flattener | 2″, flat image to full-frame |
| Tubular material | Carbon (lightweight and stable) |
| OTA length | 39-46 cm |
| OTA weight | 2.8 kg |
| Total weight with flattener and case | approx. 7.5 kg |
| Transport case | Aluminum with foam insert (56 × 20 × 32 cm) |
Application and use
This set is designed for:
- ✓ Astrophotography of nebulae, star fields and galaxy objects
- ✓ Full-frame cameras without vignetting or image curvature
- ✓ Mobile setups with EQ5-, AM3-, Star Adventurer-class mounts
- ✗ Not intended for sun observation without special filters
- ✗ Not suitable for beginners without experience with backfocus and image plane correction
The combination with the 2″ field flattener eliminates field curvature, keeping stars pointed to the corners - essential for high-quality photography with modern image sensors.
Expert advice
The Omegon 80/500 Pro APO ED + Flattener is the smartest move if you're looking for a lightweight, color-correct and fully edge-sharp setup. The carbon tube prevents focus drift with temperature changes - crucial for long night photography. Thanks to the included flattener, you no longer have to puzzle with accessories: this set is “plug and play” for high-level image quality.
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