If you are going to be shooting at 1X to 12X, don't even put the conversion lens on the camera.
Use it only when you are planning to zoom between 13X and 20.4X.
In most cases when you exceed 10X you will need to use a tripod. Some people carry a beanbag to support the camera, instead of a tripod.
At extreme optical zooms, it is near impossible to hand hold the camera and get clear photos. Many times it is also impossible to get the focus mechanism to lock.
Image stabilization can only do so much.
When the camera is supported on a tripod, you should get some excellent long zoom images.
Set the camera on a solid surface and take a long zoom test shot, you will see the difference.
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I just purchased the optional DH1758 Tphotolense..
Can anyone offer any advice on how to use? Most shots I take seem blurry?

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