In stock, ready to ship! This is a 4X PLAN infinite microscope objective with RMS thread. The NA is 0.1 and requires a 180mm or longer telephoto lens or a tube system. Effective working distance is around 11 mm. It is an excellent choice to start with higher magnifications. Because it is an infinite objective, magnification can be varied by using different focal length tube lens. For example, when a 200mm lens is used as tube lens, magnification is 4x200/180 = 4.44x. Our advise: We recommend to use this objective together with our tube systems (with Raynox DCR-150) for sharper results up into the corners and edges. On some tele lens with a larger zoom area vignetting and decreasing sharpness could be possible. This is a good microscope objective for beginners. Can be used with all our focus stacking rail series. If you want to use it with your tele lens, you will need a RMS adapter.
