Walk through this. You get a cut and clean it appropriately, then cover it with triple antibiotic ointment. After a day or so, the wound and the surrounding skin get painful and red. Thinking your cut is infected you put more triple antibiotic ointment on it, which makes dermatitis worse.
The high quality, medium telephoto macro lens, has been developed for photographers who demand the highest level of optical quality. The new Hybrid IS system features up to 4-stop correction, compensating for the effects of camera shake, during normal shooting.
A barlow lens fits between the focuser and an eyepiece effectively increasing the magnification of the eyepiece. The 2x barlow supplied with your telescope will double the magnification of an eyepiece ie a 25mm eyepiece with a barlow attached will have the same magnification as a 12.5mm eyepiece.