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<blockquote data-quote="BackdoorArts" data-source="post: 126119" data-attributes="member: 9240">You've got the wrong idea about the lens you have.&nbsp; You certainly don't have &quot;constant aperture&quot;, you just have a fixed maximum at F4.&nbsp; Aperture priority will set you shutter speed for you based on your aperture and ISO choices (or just your aperture if you have auto ISO turned on).&nbsp; For concert photography I would probably go with shutter priority to make sure that I can choose a shutter speed that will capture my subject without movement, and then set my ISO in a way that allows me to achieve proper exposure without having to think too hard (i.e. with a 70-200 with VR I want to make sure I can go to 200mm and still be shooting at 1/125sec without going dark).&nbsp; Your lens will open up to an F4 and no wider, but will definitely close down to higher values if need be.&nbsp; In every situation, think about what element you most want to control and then set up your camera so you can maintain control over that.&nbsp; In low light and with moving subjects that's often shutter speed.&nbsp; Most other times you look to control depth of field, so shoot in aperture priority.</blockquote>

[QUOTE="BackdoorArts, post: 126119, member: 9240"] You've got the wrong idea about the lens you have. You certainly don't have "constant aperture", you just have a fixed maximum at F4. Aperture priority will set you shutter speed for you based on your aperture and ISO choices (or just your aperture if you have auto ISO turned on). For concert photography I would probably go with shutter priority to make sure that I can choose a shutter speed that will capture my subject without movement, and then set my ISO in a way that allows me to achieve proper exposure without having to think too hard (i.e. with a 70-200 with VR I want to make sure I can go to 200mm and still be shooting at 1/125sec without going dark). Your lens will open up to an F4 and no wider, but will definitely close down to higher values if need be. In every situation, think about what element you most want to control and then set up your camera so you can maintain control over that. In low light and with moving subjects that's often shutter speed. Most other times you look to control depth of field, so shoot in aperture priority. [/QUOTE]

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