More lens option for Panasonic G1

<p>I was on another forum and a member found an adapter made by Nikon. This adapter is to mount the Nikon lens G lens (without aperture ring) to a movie camera like the Bolex with 25 mm thread mount (C mount).<br>

Rong Jin from jinfinance on eBay sells a C mount to micro 4/3 adapter.<br>

When I combine the two I will have a method to mount a Nikon G lens without the aperture ring to the Panasonic G1 body. <br>

So here is my journey.<br>

This is a picture of the adapter. The blurred pieces are an end piece from my old shutter release cable for my Nikon F2 and a 3 mm nylon screw.</p><div></div>

<p>This is the shutter release cable on the aperture plunger and the nylon screw acting as aperture control.</p><div></div>

<p>Here is the Sigma 30 mm f1.4 with Nikon mount on the Panasonic G1. I figured the Sigma 30 mm doesn't have an aperture ring just like the Nikon G lens and is pretty light to do the test.</p><div></div>

<p>Another view of the Sigma lens on the G1.</p><div></div>

<p>Then finally what kind of images this combination can do.</p><div></div>

<p>Another image</p><div></div>

<p>Ok last one.;-)</p><div></div>

<p>.</p>

<p>Fan-effing-tastic! MORE, please!</p>

<p>I knew the <strong>Panasonic Lumix DMC-G1</strong> held promise no one was imagining. Thank you, Hansen, for overcoming everyone else's failure of imagination.</p>

<p>Wow.</p>

<p>.</p>

<p>the sheer effort of this should be commended. when so much work has gone into putting together an adaptor like that, the resulting pictures are always a little more special.</p>

<p>Not bad. I assume the total extension will rule out infinity focus or do I still misunderstand the endless possibilities of losing the mirror box, Hansen? Lifelong learning for all of us. mahalo for sharing.</p>

<p>Gerry... if I understood what I read, it sounded like 2 adapters designed to maintain infinity focus stuck together. Nikon mount is some 45.6mm from the film plane... M4/3 is around 20mm... thats over 25mm to play around.... and 50 years of Nikon glass to explore.</p>

<p>Gerry, the Nikon is 46.5 mm, the C mount is 17.5 mm so the Nikon F to C mount adapter has to extend the lens flange 29 mm. <br>

Then the C mount is still 17.5 mm and the Micro 4/3 is 20 mm. So the C mount to Micro 4/3 adapter has to sit inside the Panasonic G1 by 2.4 mm or so. Since there is no mirror there is nothing to hit.<br>

Both adapters are designed to give infinity focus to their perspective lenses and stacked together they still give infinity focus.<br>

Here are more pictures of the adapters.</p><div></div>

<p>The ugly black thing sandwiched in the middle is my doing. I simply cut a piece of PVC pipe and cut it to size on my lathe to hide the chrome parts from the Nikon adapter.<br>

Here is a picture.</p><div></div>

<p>Very clever, and a nice job! I really think that this approach is the ultimate solution in digital cameras, as electronic viewfinders continue to improve the mirror system will become obsolete.</p>

<p>It is a really great adapter, the shutter release to hold down the aperture pin really is a great idea.</p>

<p>Yes, but I am in a quandary over Hansen's Bergundy Red G-1 or Godfrey's Cool Blue version. :-) Maybe they will get an overstock on some color, like Lands End does on golf shirts. Sorry. Weak joke. I have a tough time getting away from the professional black, or is it silver. I think I will wait a while for Olys inevitable entry. I like to recycle - big time.. I applaud it, since it is also fun to patch things together.( Like using EL Nikkor enlarger lenses for macro work....)</p>

<p>I am glad I kept my FD lenses since folks are getting results with them too. I have some of the FD accessories like FD bellows and macro lens reversal gizmos...ya never know, as mom used to say. I have to dig into my closet more and see what other lenses I have. Medium format SQ I guess is pushing it too far--? Why redundify them/ give away to KEH for bubkes when you know you truly love the old suckers. They were like old trusty pack animals.....gs</p>

<p>Oh yeah, I do think FD's should really do nice on these, as well as MD's... and both lines are pretty long on the tooth in terms of available glass!</p>

<p>Yeah, there's plenty of room to fit stuff between a 35mm lens and the body, perhaps jinfinance will come up with a one piece adapter to do this ? It would even be possible to have a setup similar to a preset lens, I don't know whether you could calibrate it to actual f numbers though.</p>

<p>...Wayne</p>

<p> </p>

<p>Here are some pictures just for your Gerry.</p><div></div>

<p>One BIG piece of glass!</p><div></div>

<p>It is also long and heavy. Pretty much destroy the entire purpose of the G1. ;-)</p><div></div>

<p>Right now this is my favorite combination with the G1. Light weight, compact, good image quality and fast.</p><div></div>

<p>Here is a sample picture from the Voigtlander.</p><div></div>

<p>So, are there RB-67 lens adapters to the micro-4/3 mount :-)</p>

<p>http://docs.google.com/Doc?id=dx428wg_10fdvsmtd7<br>

The document lists all the adapters for the G1. Cirrus adapter makes a Pentax 6 X 7 lens to Olympus 4/3 adapter. from there it is just a matter of mounting the Olympus 4/3 adapter on the Panasonic DMW-MA1 4/3 to micro 4/3 adapter. </p>