Hi, guys. Two days ago, curiosity made me play a little with the dioptre adjustment control of my Elan 7. I had no particular reason to do it, I just wanted to see how (and if) it works. Well, imagine my surprise when I noticed that changing the diopter didn't make the viewfinder image more blurry but actually sharper! The more I moved to the left (to the minus side), the sharper the image became. The best position seems to be at -2.5 diopter. I always thought that the viewfinder image is sharp at the standard diopter setting, and I always thought that the diopter adjustment feature was created for people who wear glasses, but now I've discovered that the image that I thought to be sharp was actually far from sharp. You may ask yourselves why this discovery took me by surprise. Well, I have a very good vision. I have never worn glasses, and my eyes are in perfect condition (I even took a serious eye test two months ago, when my driver's license expired and had to be changed). I can focus without problems at any distance, even very close. You might say "maybe your eyes are not OK and you need glasses after all". OK, but -2.5 diopter is the minimum setting possible! If the minimum setting is perfect for a person with good vision (or at least nearly-good vision), then what setting would use a person whose eyes are in a little worse condition?
How does this diopter adjustment work? How and where does the viewfinder focus the image? Why is -1 the "normal" setting, why was -1 selected as the default value? Thanks. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
