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G1X optical teleconverter 1.8x - first impressions -

Started Sep 27, 2012 | Discussions thread
Dimitri Khoz Contributing Member • Posts: 943
Re: G1X optical teleconverter 1.8x - first impressions -

FauxMho wrote:

On the G7, max aperture at full zoom I estimate as putting about 8 pixels in a diffraction limited Airy disk without the teleconverter, and 32 pixels with - I could not pull any more resolution as the G7 was pretty much oversampled to start with. For the G1X, I estimate that's more like 2.6 w/o the 1.8x and 8.3 with (again DL performance) - arguably room to pull a little more resolution from the sensor of the actual image plane IF the lens is performing well. DXOmark's measurements of the G1X lens suggest that at least in the center is should be performing well there.

G1X lens resolves more details at 112mm/f5.8
than NEX7 at 85mm/f5.6 with a kit zoom (E 18-55mm (28-85 in 35mm equivalent))

Canon almost 2700center/2500corners vs Sony 2550center/2350corners

Because G1X digital zoom/digital TC uses only center portion of the image,
one can really enjoy full resolution advantage in this mode.

Adding an 1.8x optical teleconverter on a top of it

may make it possible to get nice looking small prints using 22X combined zoom/604mm

Ang huge mega thank you to LarsPolarBear for all the test and results posted.
I wish that convertor will be for sale in North America one day.
Results you posted look very promising.

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