Tests with a 0.5X converter (speed converter factor)

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Steve, Coventry, England
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The other thread on speed converters made me think
I had a couple of wide angle converters from 2008 when I got my first 4/3 Olympus, but have never tried one on a M43 camera

Results are not too bad. Had to go down the road to find something square.

Taken with a GX9 and 12-60 lens at 12mm

This shows the distortion and slight vignetting
.5 cor.jpg




To show the field of view I lined the left side of the building roughly on the left side of the frame.


Below, without the converter
c.jpg
.5 cor c.jpg
Above with the converter




And then to see how much quality is lost (looking at the same image area)


below without the converter
cc.jpg
.5 cor cc.jpg
above with the converter




And finally, what the OP on the other post was looking at, a 50mm prime (Pentacon 1.8/50) on a Panasonic G5


below without the converter

That will have to be another post, too many files :)
 
The other thread on speed converters made me think
I had a couple of wide angle converters from 2008 when I got my first 4/3 Olympus, but have never tried one on a M43 camera

Results are not too bad. Had to go down the road to find something square.

Taken with a GX9 and 12-60 lens at 12mm

This shows the distortion and slight vignetting
View attachment 415648




To show the field of view I lined the left side of the building roughly on the left side of the frame.


Below, without the converter
View attachment 415656
View attachment 415657
Above with the converter




And then to see how much quality is lost (looking at the same image area)


below without the converter
View attachment 415665
View attachment 415666
above with the converter




And finally, what the OP on the other post was looking at, a 50mm prime (Pentacon 1.8/50) on a Panasonic G5


below without the converter

That will have to be another post, too many files :)





And finally, what the OP on the other post was looking at, a 50mm prime (Pentacon 1.8/50) on a Panasonic G5


below without the converter
50mm.jpg
50.5mm.jpg
above with the converter
 
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