The thin-lens formula proved comparable to the ray-tracing method in IOL power calculations in normal eyes and eyes that underwent refractive surgery. Preoperative prediction of IOL positioning plays ...

Originally developed for architectural photography, tilting and shifting lenses are much more than gadgets for turning cars into toys. Professionals even use them to document the ins and outs of ...

When it comes to photo gear, there's not much to the model names for cameras—each manufacturer has its own line with relatively simple, short model numbers. But the lenses that work with ...