--- Static GG-Holders ---                 SH-51EE Static GG-Holder for 2" Thorlabs tubes For Canon Ee-S/Ee-A focusing screens and the selfmade wax-gg's from my tutorial You dont need to modify the Canon focusing screen it takes it fullsize! GG-Holder diameter approx. 51mm to fit smoothly 2" Thorlabs tube EUR 15,- (ca. USD 19,-)                 SH-54EE Static GG-Holder for the cheap Nikon extension tubes! Compatible with Canon Ee-S/Ee-A and wax-gg's from my free wax tutorial. You dont need to modify the Canon focusing screen it takes it fullsize! GG-Holder diameter approx. 54mm to fit smoothly the asian Nikon extension tube. With new anchor system to fix the GG-Holder into the tube without glueing! EUR 15,- (ca. USD 19,-)                 SH-57EE Static GG-Holder for the cheap Canon EOS extension tubes Compatible with Canon Ee-A/Ee-S & the new Eg-A/Eg-S and wax-gg's from my free wax tutorial. You dont need to modify the Canon focusing screen it takes it fullsize! GG-Holder diameter approx. 57mm to fit smoothly the asian EOS extension tube. With new anchor system to fix the GG-Holder into the tube without glueing! EUR 15,- (ca. USD 19,-)                 SH-57ND Ver. 2.0 Static GG-Holder for the cheap Canon EOS extension tubes Compatible with Nikon D (red dot) focusing screens. GG-Holder diameter approx. 57mm to fit smoothly the asian EOS extension tube. With new anchor system to fix the GG-Holder into the tube without glueing! Easy focusing screen installation also no glueing necessary! EUR 15,- (ca. USD 19,-)                 Other diameters or custom made static gg-holders on request.                   SH-55EE Static GG-Holder for 55mm UV-Filter rings Compatible with Canon Ee-S/Ee-A and wax-gg's from my free wax tutorial. This gg-holder can be mounted between two standard 55mm UV-Filter rings. No more glueing of the focusing screen needed because its sandwiched between the glass of the UV-Filters. UV-Filter rings are not included. EUR 15,- (ca. USD 19,-)