Reply to thread

Message

<blockquote data-quote="WayneF" data-source="post: 454077" data-attributes="member: 12496">The 18-55mm lens is also rated f/3.5-f/5.6.&nbsp; This means that the maximum aperture varies with focal length.&nbsp; At 18mm zoom, it should do f/3.5.&nbsp; But at 55mm zoom, it only opens to f/5.6.&nbsp; And in between will be in between, etc.Several lenses are built that way, whereas many others only have one value of maximum aperture.The lens has to be in focus before the shutter will operate.&nbsp; There are setting (release priority) that will let the shutter actuate regardless if it has focus or not, but not-in-focus pictures is not the normal goal.&nbsp; <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />&nbsp; Actually, that Release Priority is for continuous shutter, like a burst of 10 frames following motion, where we hope it finds focus sometime. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />The flower blowing in the wind is probably not letting it lock in focus.&nbsp;&nbsp; There is a green dot that appears at bottom left of the viewfinder indicating when the camera has focus.&nbsp;&nbsp; Next trouble, notice if that green dot is missing.</blockquote>

[QUOTE="WayneF, post: 454077, member: 12496"] The 18-55mm lens is also rated f/3.5-f/5.6. This means that the maximum aperture varies with focal length. At 18mm zoom, it should do f/3.5. But at 55mm zoom, it only opens to f/5.6. And in between will be in between, etc. Several lenses are built that way, whereas many others only have one value of maximum aperture. The lens has to be in focus before the shutter will operate. There are setting (release priority) that will let the shutter actuate regardless if it has focus or not, but not-in-focus pictures is not the normal goal. :) Actually, that Release Priority is for continuous shutter, like a burst of 10 frames following motion, where we hope it finds focus sometime. :) The flower blowing in the wind is probably not letting it lock in focus. There is a green dot that appears at bottom left of the viewfinder indicating when the camera has focus. Next trouble, notice if that green dot is missing. [/QUOTE]

Verification