DayStar Filters Camera Quark H-alpha Solar Filter for Nikon (Chromosphere) Matthews 169027 They are 20mm long which

They are 20mm long which allows you use them socket to socket

11 lb Box Dimensions (LxWxH) 27

3 stop) Effect Decreases color temperature Application For adjusting 3400K illumination to 3200K Color Temperature -200K Construction ColorCore glass Front Filter Thread Size 62 mm Front Lens Cap Size 62 mm Packaging Info Package Weight 0

12° of Tilt With the use of a simple tightening mechanism

Molded EVA Material

DayStar Filters Camera Quark H-alpha Solar Filter for Nikon (Chromosphere) Matthews 169027 They are 20mm long which656nm H Alpha Filter with 12mm Blocking Tuned for Chromosphere Viewing Use Nikon Lenses for Solar Imaging 0. 5? Wing Shift Tuning 2 Element Telecentric 4. 2x Barlow Lens Optical Coatings Tuned to H Alpha Band No OTA Aperture Limitations 5 VDC, 1. 5A micro USB Port 1 4" 20 Tripod and Vixen Dovetail Plate Does Not Support All Lens Functions Building on the success of the standard versions of their Quark, Daystar Filters designed this version of the