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Forum: Troubleshooting and Beginner Help
03-17-2019, 04:58 AM
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That image looks plenty sharp to me, but would need to see the full size image to be sure.
if you are testing for AF accuracy , dont use f16, but use wide open aperture. Also don't use flash, as that will hide any problems caused by tripod shake or shutter shock.
Best thing is to do a proper test. print the chart out from the end of this document http://www.kscameraclub.org/docs/pdfs/focus_test_chart_edited.pdf
Use centre AF point only. Camera on tripod. Widest aperture. Under natural light. Allow the AF to focus on the chart from the lenses two extremes each time (infinity/closest focus distance)
Ensure the chart is aligned squarely and at a 45 degree angle to the camera. i find it best to have the camera level and the chart at 45 degrees held securely on a recipe book stand or something similar.
Test at around 25 times the Focal length. So with your lens at 200mm you want to be 5 metres from the chart.
this last bit is important.....Do not rely one one test. Do 10 attempts , each time allowing the camera to focus from infinity/or closest focus distance. Then compare your results. Have a look at what the majority of the images look like. if there is any back/front focus issues this should be apparent. post an image on here which reflects the majority result.
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Forum: Troubleshooting and Beginner Help
03-16-2019, 12:46 PM
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You shot at 1/60th at 210 mm. On a tripod based on your previous posts. Possibly shutter shock, or perhaps wind moving the flower ? How was the wind if any ?
how much margin was there from the minimum focus distance ?
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Forum: Troubleshooting and Beginner Help
03-16-2019, 02:32 AM
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Check the settings for SR OFF when using timer.
Check which AF point/s you were using. Depending how you are set up it can be you are presenting the camera with a choice of different focus planes.
Also post a picture on here.
ps. are you using the lens with the aperture ring on the "A" setting ?
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