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<p>[QUOTE="dougsmit, post: 5399528, member: 19463"]f/11 is on the border of diffraction limitations for a crop sensor camera so I might try backing off to f/8 and see if that helps. dSLR cameras can have calibration issues with focus displayed on the screen and focus delivered to the sensor. One way to 'fix' that would be to do focus bracketing of 3-4 images and see if you can find an offset that would help. Traditional wisdom suggests that ISO 100 is best but the way some cameras achieve that number varies so I might also try shooting at 200 or 400 to see what difference is actual. I use ISO 400 with my mirrorless RP because I prefer the tonal rendition there. The kit lens on the T6 is not at its best at the extremes so you might also try using something like 45mm and see if that helps. I have never owned a T6 but had good results with the original Digital Rebel before I bought a macro. If you have a telephoto, you might try using something in its middle range (~90mm) an see if that helps. Of course this is not good if the lens you have is not good. There is a lot of variation in some of the cheaper models.[/QUOTE]</p><p><br /></p>
[QUOTE="dougsmit, post: 5399528, member: 19463"]f/11 is on the border of diffraction limitations for a crop sensor camera so I might try backing off to f/8 and see if that helps. dSLR cameras can have calibration issues with focus displayed on the screen and focus delivered to the sensor. One way to 'fix' that would be to do focus bracketing of 3-4 images and see if you can find an offset that would help. Traditional wisdom suggests that ISO 100 is best but the way some cameras achieve that number varies so I might also try shooting at 200 or 400 to see what difference is actual. I use ISO 400 with my mirrorless RP because I prefer the tonal rendition there. The kit lens on the T6 is not at its best at the extremes so you might also try using something like 45mm and see if that helps. I have never owned a T6 but had good results with the original Digital Rebel before I bought a macro. If you have a telephoto, you might try using something in its middle range (~90mm) an see if that helps. Of course this is not good if the lens you have is not good. There is a lot of variation in some of the cheaper models.[/QUOTE]
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