EX zoom, i.zoom and digital zoom

Started 2 months ago | Discussions thread
Jon_T Veteran Member • Posts: 4,347
Re: FZ1000 10 EX zoom, i.zoom

dbelling wrote:

Jon_T wrote:

I use the 10MP i.Zoom similar to Gerald noted.

At least with my FZ1000 the overall the 1124mm EFL IQ results seem to look better than the 20MP 800mm EFL i.Zoom.

What I've found to get best IQ from using FZ1000 10MP i.Zoom is to:
• Get as close as you can to subject (bird, etc.) so subject 'fills' the image area.
• Good daylight lighting conditions (to keep lower ISO)
• Use base ISO setting, as lighting conditions will allow.


Very interesting. If I understand you correctly, you get better IQ by using EX at 10mp + 2x i.zoom than just the 2x i.zoom alone? I wonder why that would be, unless a 10mp image works better with i.zoom than a 20mp image? Thanks for the information.

Regards, Dave

Well the primary reason to using i.Zoom is to have a simple/ easy "in-camera" (no PP required) gain of a longer EFL via narrower FOV; NOT for 100% pixel peeping.

Hence for mainly viewing images at the SAME display or smaller resolutions the 10MP i.Zoom's 1124mm EFL are going to "appear" larger than the 20MP i.Zoom's 800mm EFL.

FWIW below are some 'very' quick FZ1000 10MP i.Zoom's 1124mm EFL and
20MP i.Zoom's 800mm EFL, at the same camera-to-subject distance

FZ1000 10MP i.Zoom's 1124mm EFL

20MP i.Zoom's 800mm EFL

10EX 1124mm EFL i.Zoom vs. 20MP 800mm EFL i.Zoom at same screen size

10EX 1124mm EFL i.Zoom vs. 20MP 800mm EFL i.Zoom, each image at 100%

Another item at appox 2X the camera-to-subject distance than the above.

FZ1000 10MP i.Zoom's 1124mm EFL

20MP i.Zoom's 800mm EFL

Bottom line; just comes down one's personal preferences and one's intended use of the images.

IMO for mainly display viewing and/ or sharing via online and/ or social media sites the FZ1000 10MP i.Zoom's 1124mm EFL image provides a larger size image at more than good enough IQ.


 Jon_T's gear list:Jon_T's gear list
Panasonic FZ1000 Panasonic LX100 Panasonic ZS100 Canon EOS 6D Canon EOS 70D +18 more
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