next PZ Lens Test Report - Canon EF 28mm f/1.8 USM - Printable Version +- Opticallimits (https://forum.opticallimits.com) +-- Forum: Forums (https://forum.opticallimits.com/forumdisplay.php?fid=4) +--- Forum: Canon EOS (https://forum.opticallimits.com/forumdisplay.php?fid=11) +--- Thread: next PZ Lens Test Report - Canon EF 28mm f/1.8 USM (/showthread.php?tid=2541) |
next PZ Lens Test Report - Canon EF 28mm f/1.8 USM - Klaus - 03-24-2012 Not as bad as expected: [url="http://www.opticallimits.com/canon_eos_ff/726-canon28f18eos5d"]http://www.opticallimits.com/canon_eos_ff/726-canon28f18eos5d[/url] next PZ Lens Test Report - Canon EF 28mm f/1.8 USM - Brightcolours - 03-24-2012 Indeed not the best background bokeh. What actually would be interesting is to see the Sigma 28mm f1.8 tested next to it for comparison. The Sigma might be a bit better in the measurements. Of course, it is bigger, heavier and a bit less nicely built, and lacks the nice AF from USM. next PZ Lens Test Report - Canon EF 28mm f/1.8 USM - Klaus - 03-24-2012 [quote name='Brightcolours' timestamp='1332597714' post='16979'] Indeed not the best background bokeh. What actually would be interesting is to see the Sigma 28mm f1.8 tested next to it for comparison. The Sigma might be a bit better in the measurements. Of course, it is bigger, heavier and a bit less nicely built, and lacks the nice AF from USM. [/quote] The f/1.8 Sigmas in this range are supposed to be terrible ... next PZ Lens Test Report - Canon EF 28mm f/1.8 USM - Guest - 03-24-2012 The distortion seems high for a prime. next PZ Lens Test Report - Canon EF 28mm f/1.8 USM - Guest - 03-24-2012 [quote name='Klaus' timestamp='1332591090' post='16977'] Not as bad as expected: [url="http://www.opticallimits.com/canon_eos_ff/726-canon28f18eos5d"]http://www.opticallimits.com/canon_eos_ff/726-canon28f18eos5d[/url] [/quote] your test mirrors my real life observations. Resolution drops off midframe and than recovers towards the corners and borders. corner performance being a tiny bit better than border performance. one thing id like to add though. AF precision is virtually none existant. it is almost impossible to get an in-focus shot at f1.8 -f2.5. no amount of af-micro-adjustment helps as focus is not consistently off in one direction. before somebody calls bad techbique: i always get spot on focus with the 85mm 1.8, so it definately is a lens issue. next PZ Lens Test Report - Canon EF 28mm f/1.8 USM - Rover - 03-24-2012 Indeed a bit better than expected. Thanks for the test. The 24 and 28 f/1.8 Sigmas were tested by SLRGear, the latter also by Lenstip, and the 20/1.8 by The-Digital-Picture.com. These lenses are indeed not very hot (to put it mildly) but strictly speaking they're still current so maybe a test is in order? Some people like the results they get from them. next PZ Lens Test Report - Canon EF 28mm f/1.8 USM - Klaus - 03-24-2012 [quote name='Rover' timestamp='1332604517' post='16997'] Indeed a bit better than expected. Thanks for the test. The 24 and 28 f/1.8 Sigmas were tested by SLRGear, the latter also by Lenstip, and the 20/1.8 by The-Digital-Picture.com. These lenses are indeed not very hot (to put it mildly) but strictly speaking they're still current so maybe a test is in order? Some people like the results they get from them. [/quote] I think the Samyangs outshadow all these lenses anyway. next PZ Lens Test Report - Canon EF 28mm f/1.8 USM - mst - 03-24-2012 [quote name='Rover' timestamp='1332604517' post='16997'] Indeed a bit better than expected. Thanks for the test. The 24 and 28 f/1.8 Sigmas were tested by SLRGear, the latter also by Lenstip, and the 20/1.8 by The-Digital-Picture.com. These lenses are indeed not very hot (to put it mildly) but strictly speaking they're still current so maybe a test is in order? Some people like the results they get from them. [/quote] The 20/1.8 and 24/1.8 are on my list, I haven't found a good 28/1.8 yet. The 20/1.8 is no doubt the best of the three regarding build quality. The 24 and 28 both wobble like crazy. Optically they are all not stellar. What makes them a bit special nonetheless is their rather short MFD. -- Markus next PZ Lens Test Report - Canon EF 28mm f/1.8 USM - Klaus - 03-24-2012 [quote name='jenbenn' timestamp='1332601995' post='16993'] your test mirrors my real life observations. Resolution drops off midframe and than recovers towards the corners and borders. corner performance being a tiny bit better than border performance. one thing id like to add though. AF precision is virtually none existant. it is almost impossible to get an in-focus shot at f1.8 -f2.5. no amount of af-micro-adjustment helps as focus is not consistently off in one direction. before somebody calls bad techbique: i always get spot on focus with the 85mm 1.8, so it definately is a lens issue. [/quote] RSAs ... they are mentioned in the text. next PZ Lens Test Report - Canon EF 28mm f/1.8 USM - youpii - 03-24-2012 [quote name='mst' timestamp='1332617531' post='17008'] The 20/1.8 and 24/1.8 are on my list, I haven't found a good 28/1.8 yet. -- Markus [/quote] I'm happy with the Minolta 28/2. |