Instruction d'utilisation Meade TMB-92

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camel’s hair brush with attached blower bulb, for example). wavefront for third order aberrations, and 1/60th wave for sharp
The use of canned or compressed air should be avoided, if pos- (fifth order) aberrations. It is highly unlikely that even the most
TMB Optical TMB-92
sible, as the propellant in the can may spit out and leave diffi- ardent observer can see errors of this small a magnitude on an
cult-to-remove deposits on your lens. Also, the expanding com- extended object, even under very

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range of braking force to accommodate various eyepiece and dew point nights will the objective lens form dew on its front center circles to form a single round circle. The illustration be- Retracted accessory weights. optical surface. low shows a close-up of one of the collimation screw pairs. lens shade A separate large hand-tighten drawtube lock knob on the top The best way to avoid dew forming on the lens after you Focuser rotation of the focuser body locks the drawtube securely in place at a