Receive an Overhead Projector
Adjust your metier presentation animated with appealing visuals from an overhead projector. To gem the deserved overhead projector, come next these steps.
Instructions
1. Establish your audience. Conscious your audience Testament maintenance to drive which features you thirst for in your overhead projector. A strong, stationary model that houses the lens in a closed head is good when presenting to children. Compact, open head models are more appropriate to use with older audiences.
2. Evaluate lenses.7. Compare cost. Search the Internet to find a manufacturer who offers a variety of products in your price range and who offers easy and convenient service. Explore replacement part costs.
3. Estimate brightness. Lumens measure a projector's brightness. They range between 1,700 and 11,000, depending on the model. Several factors help to determine the brightness level. Consider if the images will be color or black and white, projected with transparency film or an LCD panel (a minimum of 4,000 lumens is advised). The room's brightness is also a critical factor.
4. Select a lamp. A critical component of overhead projectors, lamps vary in type, life, wattage and cost. Some models offer high/low switches, while others are designed to double the lamp's life and lower replacement expenses. Consider opting for a lamp changer. They allow you to replace the lamp by flipping a switch.
5. Assess design options. When selecting your overhead projector, select a size and weight to complement its purpose. A foldaway design offers easy transport and compactness by allowing the mast and lens to be lowered. Base designs can be metal or plastic. Choose a stage that will accommodate your transparency size.
6. Consider portable. Portable projectors are now available if you need to take your presentation on the road. Plug-and-Play, image control, weight, zoom and resolution among models should be evaluated.
Lenses are an important consideration when selecting an overhead projector. Element variations include singlet, doublet and triple; the more elements, the higher the image quality. Open heads make mirror cleaning and focusing easier; closed heads reduce dust and better protect the mirror and lens. To project larger images close up select a flip-up wide angle lens.
8. Ask about warranties. Know what is covered and the warranty's length. Ask about replacement policies.
