![]() ![]() The AF system on the A7Rii is IMHO its weakest link (followed by the execrable menu system and control layout which is too easy to mis-hit). The focus-by-wire rings on the GM lenses are too sensitive to movement I find to get accurate and stable focus in manual mode. I have good results with Zeiss Loxia lenses which are manual focus-only. After almost a year of use I'm very frustrated with the Sony A7Rii AF system which significantly underperforms my Canon 5D3 system, in terms of choosing a focus point, and in acquiring focus once I have selected a point. Manual focusing is difficult, hand-held, with shallow DOF lenses and this is one reason we specifically purchase cameras with AF systems. I think the blame lies with the AF system: I've experienced bad results hand-held and also with a tripod. However, I've been experiencing much more misses than anticipated with the 85/1.4 and 24-70/2.8 Sony GM lenses. Very satisfied with the lens after a wedding this weekend.ĭOF is a potential issue with 85mm (or greater) at f/1.4 (or less: particularly happens with Canon 85/1.2). At 1.6 and up under good light conditions my results are perfect. Getting razor sharp eyes requires plenty of shots to get a keeper at the end or to use a tripod with a model made out of ice. No, but in the meantime I realized what 85mm 1.4 means concerning DOF. Only time I ever had issues with the 85mm GM was when I was on firmware 3.10 and I mounted my GM after I ordered it and I couldn't lock focus on anything and it wouldn't even lock on the eyes and it made the most awful grinding sounds but after the 3.20 update it was like night and day. I use the flexible expandable spot 100% of the time when not using eye AF. I seriously do not understand the issues people are having with this lens. I I was shooting kids running in a park with shutter speeds at 1/1000-8000 and I never missed focus. When the scale displays, adjust the control wheel, dial, or joystick of the camera to select the desired value. If the image is still out of focus then adjust the AF Micro Adjustment function of every lens used: MENU 3 Setup AF Micro Adj. I've owned the batis 85 the about 4-5 months and the 85mm GM for coming on 2 months. For ILCA-77M2, SLT-A77V, SLT-A99V, or DSLR-A900 models. Of I will just use af-c and flexible spot - medium and try and keep the subject in the box as I would with my DSLR using AF-C and single spot autofocus. If those scenarios I stop down a bit and rely on lock on autofocus flexible spot - medium. For moving subjects, eye autofocus is a bit hit and miss, if the subject moves fast enough eye autofocus just cannot keep up. ![]() My Batis 85 nails eye focus wide open in good lighting on relatively static subjects pretty close to 100% of the time. If it is moving subjects, then it could be a shutter speed issue - I try and stay at 1/200 personally. Frankly, I have been on vacation with my a7rii for the first time shooting the batis 25/85 combo and some Nikon 135 f/2 and with the lens and/or IBIS stabilization I find being aware of my technique is not nearly the issue it is on even my 24MP D750, let alone my 36MP D800e. Bad lighting, you could have misfocus although my personal experience is that focus remains pretty accurate and just much slower (or won't focus at all if the light is bad enough). All tipps will be appreciated! BTW - Had the same issue with a Batis 85mm 1.8 some time ago.Īre you talking about seldom 100% sharpe on a static subject or are we talking about trying to capture moving subjects? If it is the former and you are in relatively good light, than I would think the issue is likely the lens itself, but given that you have said you had issues with the Batis 85 as well it makes me wonder if that is the answer or not. Could be also my technique of course but my 55mm Zeiss has no problems at all under these conditions. ![]() Activated Eye-Focus in AF-C Mode as well the central flexible spot AF-Field (Medium) generate slight front-focus. Have a little trouble to get tack-sharp photos wide open with my A7RII and GM 85mm 1.4 lens. Sony E Mount, Sony A Mount, legacy Minolta A mount, our spiritual cousins in the RX series. This is a Reddit's best source for talking about the Sony Alpha photography system. Proud to be the #1 Camera-Brand Subreddit! ![]()
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