William Optics Flat7A - Adjustable Flattener and Reducer
The William Optics Flat7A ensures that your star images stay sharp to the edges of your sensor. It corrects the curvature of the field of view caused by your primary optics. Without a flattener, stars are stretched and out of focus towards the edge. With the Flat7A, you get an even, clear image over almost your entire sensor.
This flattener is ideal for telescopes with f/5 to f/7 and works especially well with large DSLR sensors. It is a triplet of high-quality Ohara glass and has a full FMC coating. This means maximum sharpness, contrast and minimal reflections.
You mount it directly to the M92 thread of your focuser. Adjust the distance with the adjustable lock ring and screw it in place. This eliminates the need for additional extensions. For cameras, use the T2 connection. Filters with M48 threads easily screw onto the flattener for versatile shooting options.
The Flat7A is solidly built and remains stable during long exposures. So you can concentrate fully on your astrophotography, without the hassle of vibrations or loose parts.
Specifications
Capacity
| Feature | Description |
|---|---|
| Connection on camera side | T2 |
| Telescope connection | M92 |
| Focal reducer | 0,8 |
General
| Feature | Description |
|---|---|
| Type | Flatteners, Correctors, Reducers |
| Design | Flattener |
| Total weight (kg) | 0,27 |
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