William Optics M48 Nikon F T-Ring - Black - TM-NK-F-M48 threedaysale 45 arc seconds Light Gathering

45 arc seconds Light Gathering Power (Compared to human eye) 131x Optical Coatings fully coated glass Optical Tube Length 457

It works on the difference between Ambient Air Temperature and the temperature of your optics

you can power and control the focus motor from your computer's USB port

The 700 Mak connects directly to the CGEM II with its CGE dovetail mounting bar

William Optics M48 Nikon F T-Ring - Black - TM-NK-F-M48 threedaysale 45 arc seconds Light GatheringWilliam Optics 48 mm T Ring for Nikon F Cameras Use this aluminum black anodized T ring to attach your Nikon F camera body to an imaging accessory, etc. with M48 threads.