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Cyclops Optics

William Optics Flat4 0.8x Reducer Flattener

HK$2,600.00

William Optics Flat4 0.8x Reducer Flattener

HK$2,600.00
SKU:
WO-P-Flat4
Shipping Weight:
0.80 KGS
Shipping:
Calculated at checkout
Quantity:
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Product Description

This revolutionary new William Optics AFR-IV Adjustable Flattener / 0.8x Reducer was made for 500-1000mm refractors.

The Super-Transmission-Coated with 2-element lens system is designed and produced by William Optics, the inner flattener lenses can be set at the optimum 66mm-86mm back focus distance (Distance from flattener lens to film or CCD plane).

This high quality accessory is a must-have for refractor astrophotography.

High quality reducer for serious astrophotographers
• Designed to cover full format DSLR cameras with clear lens aperture of 50 mm
• STM coated with an excellent doublet air spaced design
• Produced entirely with the best Ohara optical glasses from Japan
• 35mm for fully illuminated imaging circle

Great performance and versatility
• It will flatten the field amazingly well and finally make you see those stars round edge to edge
• This unique flattener works with WO or other 500-1000mm focal length refractors

Superb Finish
• Superb William Optics anodized finish
• All internal surfaces threaded and blackened for no reflections

Easy to Use 
• Rotating T-ring thread for any 35mm camera. The T-ring adapter is provided with a lock screw and extra lock retaining screws
• Will accept any standard T-ring for your camera
• Inserts directly into 2" focuser

Suitable for
• GT102, FLT98, FLT110, FLT132 and many others

Specifications

High-quality FMC
Lens-to-chip distance : 66-86mm
Power : 0.75x ~ 0.8x
Rotating T-ring adapter
Clear Aperture : 50mm
L 84mm : W 77mm : H 123mm
Weight : 540 g

 Backfocus distance recommendation

FLT 98 76.8 mm
FLT 110 73.5 mm
FLT 132 71.5 mm
GT 102 76 mm
M90 77.3 mm

 

 

 

 

 

 

 

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