Dr. Flat Master (0.8x Reducer)
Overview
The William Optics Dr. Flat Master is an apochromatic triplet reducer/flattener designed for 12" - 16" WO and GSO Ritchey-Chrétien telescopes. It reduces the focal length by 0.8x and flattens the field, making it ideal for full-frame sensors with a 52mm image circle. Featuring an M48 x 0.75 camera connection and a backfocus distance of 86.15mm, this accessory enhances your astrophotography setup by expanding your field of view and ensuring edge-to-edge sharpnes.
- Lens Type
- 2 Groups 3 Elements
- Length
- 64.5 mm
- Telescope Thread
- M92 x 1 x 6 mm
- T-mount Thread
- M48 x 0.75 x 4 mm
- T-mount Supported
- Canon EF, RF
- Nikon F, Z
- Sony E
- Pentax K
- MFT (M4/3)
- FUJI X
- Camera Format
- > Full Frame
- Weight
- 697.4 g / 1537.5 lbs
▶ Complementary ◀
Dr. Flat Master (0.8x Reducer)
Sale price$845.00 USD
Choose options
Dr. Flat Master (0.8x Reducer)
Sale price$845.00 USD
Flattener compatibility table
|
FLAT 61A
1.0x |
FLAT 73A
1.0x |
FLAT 73R
0.8x |
FLAT GT
1.0x |
FLAT 6AIII
0.8x |
FLAT 68III
1.0x |
FLAT 7A
0.8x |
FLAT 8
0.72x |
Ultra 91
0.79x |
Ultra 132
0.79x |
Ultra 156
0.79x |
Dr. Flat
0.8x |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GS-61 | ★ | |||||||||||
| Z-61 | ★ | |||||||||||
| Z-73 | ★ | ★ | ||||||||||
| Z-81 | ★ | |||||||||||
| Z-126 | ★ | ★ | ||||||||||
| GT-71 | ★ | ★ | ||||||||||
| GT-81 | ★ | ★ | ||||||||||
| GT-81 WIFD | Adapter | ★ | Adapter | |||||||||
| GT-102 | ★ | ★ | ★ | |||||||||
| GT-153 | ★ | ★ | ★ | |||||||||
| FLT-91 | Adapter | Adapter | ★ | |||||||||
| FLT-120 | ★ | Adapter | ||||||||||
| FLT-132 | ★ | ★ | ★ | ★ | ||||||||
| FLT-156 | ★ | ★ | ★ | ★ | ||||||||
| RC Series | ★ | |||||||||||
| Pleiades Series | No Flattener Required | |||||||||||
| Cat Series | No Flattener Required | |||||||||||
Flattener & Reducer
FLAT 61A
Sale price$229.00 USD
FLAT 6AIII (0.8x Reducer)
Sale price$229.00 USD
FLAT 73A
Sale price$229.00 USD
FLAT GT
Sale price$258.00 USD
FLAT 68III
Sale price$656.00 USD
FLAT 73R (0.8x Reducer)
Sale price$298.00 USD
Ultra Flat 132 (0.79x Reducer)
Sale price$898.00 USD
Ultra Flat 91 (0.79x Reducer)
Sale price$658.00 USD
Ultra Flat 156 (0.79x Reducer)
Sale price$898.00 USD
Dr. Flat Master (0.8x Reducer)
Sale price$845.00 USD
FLAT 8 (0.72x Reducer)
Sale price$806.00 USD
FLAT 7A (0.8x Reducer)
Sale price$691.00 USD