Disapointed in my Df.

Started Apr 6, 2014 | Discussions thread
sgoldswo Veteran Member • Posts: 5,718
Odd behaviour - not representative of my experience. Defective Camera?

brianric wrote:

I was shooting a Relay for Life last night to 6 AM this morning at a local college and decided to use my Df. I had it set up for flash, AF-C single point, center point, focus priority. The Df struggled to lock focus in what I would consider in light, while low, not all that bad. I had to switch to AF-S, and the red AF-assist illuminator in order to lock focus. When I had a small break in the action I replaced the Df with my D800. With the same initial setup the D800 nailed the focus instantaneously 100% of the time.

I've had the AF stutter on me, but at ISO 12800 with almost no visible light. I've never had it struggle at more sensible higher ISOs like ISO 1600-6400. Admittedly I tend to use centre point AF-S a lot in lower light, but I do use AF-C a lot too.

As I said to DPR when they reported this kind of thing, I did have a faulty D600 which behaved in a similar way in lower light. It turned out the AF module was defective (it still worked but was less sensitive to contrast). I've also seen this kind of thing off the outer AF points or when the camera is set to AF-C Auto. Never in AF-S or AF-C centre point.

My guesstimate would be it would be an idea to have your camera checked out.

 sgoldswo's gear list:sgoldswo's gear list
Leica Q Leica M Typ 240 Nikon Df Nikon D810 Nikon D750 +1 more
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