zlfan Posted Monday at 10:49 AM Author Share Posted Monday at 10:49 AM The Oly 25mm f1.8 is good at mid range, not as good as zf at infinity. Link to comment Share on other sites More sharing options...
zlfan Posted Thursday at 08:35 AM Author Share Posted Thursday at 08:35 AM 120p photo is still the best in terms of sharpness. colorwise, although good enough, neither art filter 1 nor hlg 10 bit is as good as the 14 bit ml raw or f3. Link to comment Share on other sites More sharing options...
ac6000cw Posted Thursday at 09:02 AM Share Posted Thursday at 09:02 AM On 4/7/2025 at 8:58 AM, zlfan said: The Oly 25mm F1.8 sometimes pulses in continuous AF in video mode. I've found that in video C-AF, if a lens is stopped down to a small aperture, the OM-1 (and the E-M1 ii/iii) will sometimes decide it's not quite in focus and pulse it to check. If the lens has low focus breathing it's often not noticeable as the depth-of-field at small apertures hides it. But it means lenses with low focus breathing are a good idea if using C-AF in video. Oly/OMS cameras don't have an AF-lock function, but you can assign the MF (manual focus) function to a button, which basically does the same thing (provided you don't touch the lens focus ring!). Also the AF-ON button can be used to force a re-focus in both C-AF and MF modes. So in MF mode, pushing AF-ON to get initial focus then tweaking it with the lens focus ring if necessary is easy. On 4/7/2025 at 9:52 AM, zlfan said: At 25mm the IBIS is very stable, but jerky when panning or tilting. What video 'IS Level' are you using (-1, 0, +1) and is this in M-IS 1 (with digital) or M-IS 2 (sensor shift only) mode? At the +1 setting it will be jerky if you move it too fast (It's intended for static hand-held situations), but -1 and 0 settings should be OK for normal movement (in my experience). Link to comment Share on other sites More sharing options...
ac6000cw Posted Thursday at 09:18 AM Share Posted Thursday at 09:18 AM 29 minutes ago, zlfan said: colorwise, although good enough, neither art filter 1 nor hlg 10 bit is as good as the 14 bit ml raw or f3. The OM-1's strength is as a good handling, relatively light weight, handheld run-and-gun camera with very low rolling shutter. and decent AF. I think it's video quality is more than good enough for that kind of use (which is basically what I use it for), but TBH I don't think it's a camera you'd choose to put on a tripod and shoot a feature film with. zlfan 1 Link to comment Share on other sites More sharing options...
zlfan Posted yesterday at 04:16 PM Author Share Posted yesterday at 04:16 PM On 4/10/2025 at 2:02 AM, ac6000cw said: What video 'IS Level' are you using (-1, 0, +1) and is this in M-IS 1 (with digital) or M-IS 2 (sensor shift only) mode? At the +1 setting it will be jerky if you move it too fast (It's intended for static hand-held situations), but -1 and 0 settings should be OK for normal movement (in my experience). i used +1. will try 0 for moving. Link to comment Share on other sites More sharing options...
zlfan Posted yesterday at 04:20 PM Author Share Posted yesterday at 04:20 PM On 4/10/2025 at 2:02 AM, ac6000cw said: I've found that in video C-AF, if a lens is stopped down to a small aperture, the OM-1 (and the E-M1 ii/iii) will sometimes decide it's not quite in focus and pulse it to check. If the lens has low focus breathing it's often not noticeable as the depth-of-field at small apertures hides it. But it means lenses with low focus breathing are a good idea if using C-AF in video. Oly/OMS cameras don't have an AF-lock function, but you can assign the MF (manual focus) function to a button, which basically does the same thing (provided you don't touch the lens focus ring!). Also the AF-ON button can be used to force a re-focus in both C-AF and MF modes. So in MF mode, pushing AF-ON to get initial focus then tweaking it with the lens focus ring if necessary is easy. This lens breathing is what I experienced, at F8 or F5.6, even at F4. I will try MF. Thanks a lot for the input. Link to comment Share on other sites More sharing options...
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