32mm f/4 Mini Guide Scope Telescopes Astrophotography 4.4 apertureGetting this guide scope makes sense for most astrophotographers out there.If you 39;re just starting out, this item is easy-to-use and performs well.If you 39;re at the other extreme, using Mini Guide Scope on your smaller imaging rigs is more practical than trying to mount a larger, more exotic guide scope.If portability is important to you, Mini Guide Scope 39;s compact size and relatively low weight will cooperate with your requirements. Features:Compact mini guide scope with 32mm f/4 aperture opticsSupport sensitive auto guiding cameras for easy guide star acquisitionFeatures precise helical focus adjustment with thumbscrew lock RingDesigned for use with 1.25inch mountPackage Include1* 32mm f/4 mini Guide Scope1* bracket with a dovetail3* adapter