To make something that's actually 2 inches away seem to 1 yard away for eye relief.
At 08:20 PM 2/25/2003 +0100, you wrote:
I guess I must be stupid, but I still don't get it. According to my optician a 'normal sighted' person should dioptre 0, and glasses should correct defects of vision to that 'zero-level'.
Why then put -diopters into the viewfinder?
>I think most of the Pentax cameras have about a -1.0 diopter >viewfinder eyepiece (I remember that some of them might be -0.8). I >don't think it's unusual, isn't it so that a 20/20 eye can better >focus on the viewfinder screen by making it seem like it's about a >meter away? > >I think it's only confusing with some camera brands when you buy the >correction eyepieces, some are marked for the corrective power of the >diopter correction, but some take into consideration what the >correction will be when put on the already -1.0 viewfinder eyepiece. > >Putting on a +1.0 eyepiece would bring it to 0.0, but that's not >necessarily the ideal, although it may be for your eye. > >Joe > > >>The ME-super has - for some strange reason - a -1.0 diopter eyepiece. Bit >>of a problem when using glasses. Would it be a solution to put on a +1.0 >>correction eyepiece? >> >>Peter Smekal >>Uppsala, Sweden >>[EMAIL PROTECTED]
Peter Smekal Uppsala, Sweden [EMAIL PROTECTED]
Outside of a dog, a book is man's best friend. Inside of a dog, it's too dark to read. --Groucho Marx
