Vixen Extender PH 1.4x for R200SS newtonian reflector

Vixen Extender PH 1.4x for R200SS newtonian reflector

The Japan made high quality extender lens system for astrophotography, applicable to parabolic mirror newton reflector R200SS turning into F5.6 astrograph.

This product is applicable not only for photography, but also for visual observation.

Features of the Extender PH

• The extender PH kit is designed to extend a focal length to 1.4x. The R200SS Newton reflector of 800mm (F4) will be extended to 1,120mm (F5.6).
• Using optical system of 4-element in 3-group, coma-aberration is extraordinary eliminated to capture sharp images to the edge of imaging field, while complying full-frame camera in 44mm image circle.
• Use of the 31.7mm eyepiece in combination with eyepiece adapter allows visual observation.
• The same anti-reflective AS coatings, which are used for our high-end VSD100F3.8 Astrograph, are used to take advantage of 99.9% superb high transmission of light per lens surface. Loss of light, ghost and flare images are eliminated substantilly due to the complete matte finish inside.
• The use of 50.8mm eyepiece adapter with the extender PH kit enables a use like high performance barlow lens for visual observation while eliminating coma aberration over the entire viewing field.

Product Descriptions

System Chart

Spot diagram