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  1. The original A7r in my experience is very prone, especially with long-ish lenses, to disastrous shutter shock that will often render the pictures unusable. This happens especially with the lightest lenses. In my case two of the worst offenders were the Leica R 180 and the Minolta AF 100-300 Apo. Anything shot at less than 1/320s (and up to a few seconds) was bound to show, 90% of the times, substantial vibration-induced blurriness. Just to be clear, because I know this is a debated argument: I normally shot using either a remote (wireless) release or the 10s self-timer, using an heavy tripod (if I remember correctly more or less 3.5Kg, without the head) plus an 8cm wide Arca ball head (more or less another kg) that is almost as large as the A7r itself. The same setup was more than enough to support my 5x7" large format camera without a hitch, but wasn't enough for the Sony! But now I finally found a solution that doesn't involve adding the grip or other kind of weights to the camera. You can read the details here, should you be interested: How to: solve the Sony A7r shutter shock, for good but basically I just jammed cork stripes between the L-bracket and the camera (under the vertical "arm" as well). Please ignore the small differences in "grain", I had to change the ISOs in order to keep exposure (and aperture) constant while changing the shutter speeds. All shot with the Minolta AF 100-300 Apo @ 300mm Now I can shoot at any shutter speed with impunity, and have to take precautions only in the same conditions that apply to other cameras as well, like heavy winds etc. (and in this case I use, also illustrated in the above mentioned article, a bike inner tube). Hope this can be of help to other A7r owners that have no intention of splurging another 3000€ on a new camera body, nor have more the patience to wait for Sony to release what should have been a fairly simple firmware upgrade to insert a small delay between the push of the shutter button and the start of the first curtain (like Olympus and others did to fight, successfully, this exact phenomenon).
  2. My 70-300 lens on occasion produces images that are not in focus when set to 300mm. I tend rule out camera motion because I am shooting at 1/1000 sec. and resting the camera on a solid rest. At first I thought it was because many of my earlier out of focus shots were wide open at f5.6. So today I tried shooting a sign that was 282 meters away and shot at 5.6, 8, and 11. The middle one, f8, was clearly out of focus. I am generally satisfied with this lens on my A7r2 camera, especially at the shorter FLs. The lens is generally sharp, and very easy to carry and use. Please see the composite of the three images. All are enlarged to 100%. Has anyone else experienced such issues with this lens or, with the A7r2 camera?
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