Manufacturer: William Optics
Product number: P-Flat7A

EUR 789,00


incl. 19 % VAT (DE)  
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excl. 6.95 € shipping costs (DE)  
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William Optics P-Flat7A 0.8x Reducer and Image Field Corrector
William´s corrector is suitable for all refractors (ED, Triplet or Dublet APO ...) with large focusers. It corrects the image area, thus providing uniformly good star depiction up to the edge. It also shortens the focal length to 80% and improves the focal ratio by a factor of 0.8. This reduces the exposure time considerably.

The distance from the corrector to the camera is individually adjustable:
The correct distance from the corrector to the sensor of the camera is decisive for optimal sharpness in the image area. You can adjust the distance steplessly and thus adapt your accessories optimally. There is no need for an adapter fuss. Simply extend the camera-side part of the corrector as far as necessary and then lock the position precisely with the locking ring.This way, the position is maintained. Below are some examples of working distances when the M48 connector is at the innermost position:
William FLT132: 69.24 mm
William FLT156: 65.3 mm
William GT102: 70.6 mm
William GT153: 65.4 mm
William Z126: 67.76 mm


These distances can be applied to similar telescopes.
Focal length reduction:0.8x
Number of lenses:3
Lens material:Ohara optical glass (Japan)
Connection telescope side:M92x1 male thread
Connection camera side:M48x0.75 male thread
thread for 2" filter:available
Working distance:adjustable
William corrector
Metal dust caps



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