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MFLenses 2026

Manual Focus Lenses Forum

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.
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PANA Lumix GF1 + G 20/1.7 examples
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Hi Andy, and the other who are interest in this lens (20/1.7).

Please click the photo to enlarge in 1,200 x 1,800

@f5.6 1/20 small terminal station


@f4 1/50 noodle shop lantern


@f4 1/30 night in Shibuya


@f8 1/30 (emperor's living quarter in olden time)


@f6.3 1/15 through the showcase glass in museum


The images are more "digital look" than M8's IMO, the lens 20/1.7 has no distortion due to software correction inside GF1 I guess.
By the way, this lens can be used as a MF lens using GF1's movable focus point and once you try to focus the lens, back LCD's image
is automatically enlarged for critical focus. a nice touch. For MF lens, the process is similar but you have to press a button to enlarge
the focused area, otherwise the same. But this process requires the steady hands, using a tripod is ideal unfortunately for me.

I used Jpeg option of +1 for sharpness, +1 for contrast, no noise reduction, but weak dark area recovery (see #4).
Now I set zero for sharpness, since the images tend to have USM's side effect of hallowing a bit.


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is 'emperor's living quarter in olden time' made in plastic
it is a pity they don't use wood anymore


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This combo is a kind of dream for me.
I am seriously thinking about selling my 350D w/ 17-70 and Lumix FX-37 to get the GF1 with this lens.


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It really is pretty amazing Smile Thanks for posting these.
Have you taken some RAW captures?


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No yet, Andy. I have to install the software supplied by Panasonic, and
the camera is for my wife. Very Happy Yes, I can borrow it. Very Happy

Will test though.

I actually shot with NOKTON 50/1.1 and Biogon 25/2.8 ZM using Cosina's M->m4/3 adapter.
It was a big disaster, mostly handshaked images were produced. Crying or Very sad Crying or Very sad