The Floor Strikes Back and A New Hope in Discussions - Scopes / Whole setups Posted 31 minutes ago 1 hour ago, mikeDnight said: I'm glad the info is of some help. The DZ is physically a little longer when extended than the DC/DF as it has an FL of 800mm rather than 740mm, but it isn't really that noticeable to me, where as the DL at 900mm made me stretch to reach my slow motion controls on my GP. I admit my back appreciates the smaller arc in movement of the DC/DF & DZ as comfort in use is a big thing for me. I can sit or stand at the eyepiece without getting in any strange positions, which helps with concentration while observing. I've attached a pic of my DC and DZ showing their relative positions on the mount, so as you can see, there's not a great deal in it. And DC & DZ as Altaz grab & go. Both very easy to handle! Actually I meant to ask, are you able to bring binoviewers to focus without a GPC or Barlow in the DZ?