viefinder question

[raybrizzi]

<p>Back in the old days, I had a 50mm lens on my EXA IIA and Canons. If I looked through the viewfinder with both eyes open, the view was the same size in both eyes. If I put the 2x converter on it, the viewfinder view was twice as big.<br>

Now I have a k-5 with a lens at 70mm, which with the 1.5 factor should be about the same as the old camera, 105mm or so. But the view is the same from both eyes again. <br>

Just trying to understand why. I'm obviously missing something. Or is it just that the viewfinder is larger or smaller?</p>

[john_shriver]

<p>Finder magnification of the K-5 is 0.92x. Which is pretty decent for a digital camera.<br>

I tried a 28-90 zoom on my K-5, and 1:1 looks to be at about 60mm.</p>

[songtsen]

<blockquote>

<p>Or is it just that the viewfinder is larger or smaller?</p>

</blockquote>

<p>APS-C cameras have smaller viewfinders. Unfortunately, magnification is quoted for a 50mm lens which is somewhat misleading for a cropped FOV.</p>

<p>You may find these comparisons interesting:</p>

<p><a href="http://photography-on-the.net/forum/showpost.php?p=6411212&postcount=90">Viewfinder comparison </a></p>

<p><a href="http://photography-on-the.net/forum/showpost.php?p=10226391&postcount=135">Viewfinder sizes </a></p>

[raybrizzi]

<p>So basically it's just the size of the viewfinder that makes the difference. I'll have to dig out the old EXA and compare. Thanks!</p>