Timeline for Why are my pictures blurry even though a DOF calculator shows everything should be in focus?
Current License: CC BY-SA 4.0
20 events
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| Jun 16, 2020 at 11:21 | history | edited | CommunityBot |
Commonmark migration
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| Jul 9, 2019 at 17:37 | history | rollback | Michael C |
Rollback to Revision 8
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| Jul 9, 2019 at 10:36 | history | edited | xiota | CC BY-SA 4.0 |
add DOF images that you had edited into the question; if you didn't have edit permissions, they would have been rejected as "attempt to answer the question"; as such, they properly belong as part of your answer
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| Jul 8, 2019 at 22:44 | history | edited | xiota | CC BY-SA 4.0 |
formatting
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| Apr 13, 2017 at 12:43 | history | edited | CommunityBot |
replaced http://photo.stackexchange.com/ with https://photo.stackexchange.com/
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| Feb 2, 2017 at 12:09 | history | edited | Michael C | CC BY-SA 3.0 |
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| Dec 30, 2016 at 6:45 | history | edited | Michael C | CC BY-SA 3.0 |
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| Dec 30, 2016 at 6:34 | history | edited | Michael C | CC BY-SA 3.0 |
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| Dec 30, 2016 at 4:57 | comment | added | Chris | @Michael Clark I edited my post and added pictures. It's not about viewing size at all. I apparently can't get the focus right and when comparing the numbers from the DOF calculators with what my outcomes, something doesn't add up. For instance, when looking at professional landscape pictures I can zoom in all the way and everything in the foreground is razor sharp and the background is acceptably sharp. When doing the same with my example pictures, it gets blurry before I even reach 100% zoom.My gear should be good enough to create really sharp pictures for the internet(wallpapers etc.). | |
| Dec 29, 2016 at 22:22 | history | edited | Michael C | CC BY-SA 3.0 |
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| Dec 29, 2016 at 20:17 | comment | added | Chris | @Micheal Clark For instance, when setting my lens manually on the hyperfocal distance for a given focal length and aperture it should be acceptably sharp right? Technically I shouldn't need to focus using the viewfinder or live view if the lens is calibrated accordingly, right? | |
| Dec 29, 2016 at 20:10 | comment | added | Chris | @Micheal Clark I put 20/20 vision and 50cm viewing distance. Anyways the picture from the beach is sharp even at a 100% and it was hend held And manually focused at 20m into the scene. It should be equally sharp using the calculated hyper focal distance right? I read everything you linked in depth and I'm thankful for everything you said and linked but it still doesn't answer my question why the calculation even when I put 20/20 vision etc. gives me an unsharp picture than when focusing on something randomly. | |
| Dec 29, 2016 at 19:14 | history | edited | Michael C | CC BY-SA 3.0 |
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| Dec 29, 2016 at 9:33 | comment | added | Chris | @Michael Clark I took some test shots today at the beach and I focused approx. 20 meters into the scene instead of using the hyperfocal distance of 1m for f11 @ 15mm focal length and everything is sharp. Something doesn't add up to me. I watched some landscape tutorials and they all focus manually using live view. One tutorial just focused at infinity and their foreground was sharp. I don't know how this can be. | |
| Dec 29, 2016 at 9:21 | comment | added | Chris | @Michael Clark Maybe I should put it this way: According to the calculators, If I focus at the hyperfocal distance, my DOF is 'infinity' but it is also 'infinity' if I don't focus at the hyperfocal distance, say, 2 or more meters. And the acceptable sharpness in the foreground only changes a few cm. So, in theory, it shouldn't matter what I focus on, it's always infinity. How can this be? | |
| Dec 29, 2016 at 7:15 | comment | added | Chris | @Michael Clark I focused to infinity using the calculators (it says I should focus at something that's 2m away to go get a DOF of infinity behind my subject) online and it wasn't sharp (the foreground, the subject and the background). I also focused to infinity using the lens' infinity mark and it wasn't sharp either. I guess I should just focus at something that I want to be in sharp focus,e.g. the foreground, and not care about the distant objects (trees etc.). | |
| Dec 29, 2016 at 7:02 | comment | added | Mark Ransom | @Chris your question says you focused the lens to 2m, but the comments you made to that question say you focused the lens to infinity. Which is it? If you actually focused the lens to infinity, this is the correct answer. | |
| Dec 29, 2016 at 6:25 | comment | added | Chris | I understand what DOF is and I also understand hyperfocal distance and infinity. My question was simple: 'Why does the calculator not correspond with real life' because every time I try to focus using the numbers the stupid calculators spit out, my pictures and up being blurry. What I've learned so far is that the people who deliver stunning pictures don't rely on math. | |
| Dec 29, 2016 at 4:55 | history | edited | Michael C | CC BY-SA 3.0 |
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| Dec 29, 2016 at 1:20 | history | answered | Michael C | CC BY-SA 3.0 |