I wear trifocals and am having trouble focussing under the darkcloth. Should I be looking through the 'far' part of my glasses or the 'near'? Looking through the 'near' requires that I tilt my head back pretty severely and seems to be optimized for about 12" distance, anyway. When I'm focussing I'm usually closer (say 4"-8").
What about when I'm looking through my loupe? Which part of my glasses should I be looking through?
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