QHY GPS Box - 90038 12" Telescopes It has a thickness of

It has a thickness of 3mm

iOptron Counterweight Balance Kit for SkyTracker Pro

Here is what Tele Vue has to say about the Nagler Type 7 Series Eyepieces

When the lens tube is stretched

QHY GPS Box - 90038 12" Telescopes It has a thickness ofThis compact camera accessory provides high precision GPS hardware time scales allowing some QHYCCD cameras to obtain accurate time information of the camera's exposure time. In addition, this information is returned to the camera internally and added to the image data after the start of one frame of the image. GPS timing information and image information are therefore completely consistent. No confusion is created due to transmission, buffering or