Male thread - M48X0.75; Female thread - M48X0.75; eliminates a range of focusing problems
The extension tube has a M48X0.75 interior thread and a M48X0.75 exterior thread for elegantly solving spacing problems in astrophotography
Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners
New right angle viewfinder for amateur and professional photographers; take pictures at a more comfortable angle; a must have for both amateur and professional photographers
Manually adjust between 1X and 2.5X magnification; which enables you to have access into smaller details of the view and makes you focus easier when doing macro shooting