Comments on: Digital Camera + extra Zoom Lens? http://www.zoomcameralens.com/camera-lenses/digital-camera-extra-zoom-lens Your Source for Zoom Camera Lens Reviews and Information Thu, 02 Sep 2010 08:28:41 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: anthony h http://www.zoomcameralens.com/camera-lenses/digital-camera-extra-zoom-lens/comment-page-1#comment-455 anthony h Sun, 21 Mar 2010 05:47:58 +0000 http://www.zoomcameralens.com/camera-lenses/digital-camera-extra-zoom-lens#comment-455 Yes, you could actually do 24x the original view, but you couldn't actually continuously zoom 24x; you have to take off the lens to get all 24x zoom. If you added a 2x screw on adapter, you'd still have a 12x (It's not 10x on your camera, but 12x) lens but with more magnification. What would happen is this: both the widest setting and the telephoto setting have been multiplied by 2. So the zoom itself with the 2x adapter remains a 12x zoom ration. BTW, the Z812 IS actually has a 12x zoom lens! It has a field of view of 36mm to 432mm in 35mm equivalent. When you add the 2x screw-on lens, the zoom then becomes a 72mm to 864mm zoom (still 12x, because 864 divided by 72 = 12). Notice that the 864mm is now 24x 36mm though. Thus, with the adapter on, the 864mm is 24 times the 36mm view, but the lens itself remains a 12x zoom (unless you remove the 2x adapter). Hope that makes some sense to you. Now, if you add a macro lens (actually, it's just a diopter lens), zooming should increase the working distance, that is, you can be further away and still get macro shots. Yes, you could actually do 24x the original view, but you couldn’t actually continuously zoom 24x; you have to take off the lens to get all 24x zoom.

If you added a 2x screw on adapter, you’d still have a 12x (It’s not 10x on your camera, but 12x) lens but with more magnification. What would happen is this: both the widest setting and the telephoto setting have been multiplied by 2. So the zoom itself with the 2x adapter remains a 12x zoom ration.

BTW, the Z812 IS actually has a 12x zoom lens! It has a field of view of 36mm to 432mm in 35mm equivalent. When you add the 2x screw-on lens, the zoom then becomes a 72mm to 864mm zoom (still 12x, because 864 divided by 72 = 12). Notice that the 864mm is now 24x 36mm though.

Thus, with the adapter on, the 864mm is 24 times the 36mm view, but the lens itself remains a 12x zoom (unless you remove the 2x adapter). Hope that makes some sense to you.

Now, if you add a macro lens (actually, it’s just a diopter lens), zooming should increase the working distance, that is, you can be further away and still get macro shots.

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