Optical Accessories 
Everything you need of optics for visual and photographic work or accessories for DIY projects, can be found in these categories.
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Elliptical secondary flat for Newtonian telescopes with 90 mm diameter minor axis and 97 % coating.
High quality 40 mm Plössl eyepiece for planetary and Deep Sky observations.
The new, extreme 13 mm Wide Angle Eyepiece by APM Telescopes with 100°.
Elliptical secondary flat for Newtonian telescopes with 170 mm diameter minor axis and 97 % coating.
High quality 55 mm Plössl eyepiece for planetary and Deep Sky observations.
The new, extreme 7 mm Wide Angle Eyepiece by APM with 100°.
Elliptical secondary flat for Newtonian telescopes with 160 mm diameter minor axis and 97 % coating.
The new, extreme 20 mm Wide Angle Eyepiece by APM with 100°.
Elliptical secondary flat for Newtonian telescopes with 150 mm diameter minor axis and 97 % coating.
The 2" 30mm UltraFlat Field Eyepiece features a high quality standard and a very compact design, which is designed to remove the field curvature at the edge, resulting in a flat, ...  
Elliptical secondary flat for Newtonian telescopes with 140 mm diameter minor axis and 97 % coating.
Best price for a worthy 30 mm 80° eyepiece.
 Features: 2" wide-angle eyepiece with 80° field of view High-quality, multi-coated optics Modern optical design Optimised, comfortable viewing behaviour Blackened lens edges 2" receptacle with filter thread