I am interested too in Konica AR Mount @hellrazor . The cheap and common 40mm would be a 28mm f1.2 killer with the 0,72 adapter ;) I strongly believe that if it would be released, many people will preorder it! ;)

Sorry if the answer to this question is obvious to everyone else :) I'm just not clear on whether the RJ Lens Turbos with the new tripod collar can be had with the aperture control for Nikon G Series lenses?

I too am interested in a Sigma 18-35 f1.8 setup and a tripod mount would be really nice for handling this lens. Also, my nice (but HEAVY) Nikon ED AF Nikkor 80-200 f2.8D I just picked up REALLY needs a tripod mount (but doesn't need the aperture control, obviously). If I could get one speed booster/lens turbo that could control the aperture and offer a tripod mount, that would be fantastic.

@monks19

If you will go back in THIS topic you'll find same thing about adjustment, without references.

Thing that people told you is that optical adapter affect parfocal behavior.

UPDATE: after further researches, I've found out what was the real problem for my case. Earlyer I said that the Nikon lenses were acting like parfocal lenses when attached to a Nikon body. Somebody else, on another forum, had the same problem with the Metabone adapters. It turned out that Metabone new about this and posted a solution about this: http://www.metabones.com/article/of/infinity-adjustment-speed-booster-only

After seeing that, I asked the conceptor of the RJs if this problem might happen with their product and if an adjusment was possible and he confirmed that it was possible to adjust the adaptor the same way as Metabone's.

Hi hope that this information is usefull for new m43 users.

Last time I saw one of those zooms was Bush Cassidy & the Sundance Kid (1969 0r 70?)

Try fading the colours, add a few "projector" artefacts, and nobody'll notice the out-of-focus zoom.

;-)

It is like that. When you add another lens in the optical path the focus behavior changes, so there is no way to keep the same focus when you change the zoom position. There is no problem with the focal reducer, it is just like that. Same thing happens with the VAF filters for Canon dslr. you need to refocus when you change the zoom.

"What you mean?"

That they don't lose focus when zoomed out.

About the parfocal thing, could you be a bit more explicit ? I'm a bit new to this so more information will be welcome.

Also, I have no way to check if the lens I have are parfocal or not since they were bought used. Aside of their physical condition, I really can't say, but I can find ebay adds of the same lenses on ebay. Maybe you'll be in a better position to tell.

Hi. I recently did a shooting for a dance show. My set up was like this:

3 cameras (1 Lumix G6 & 2 GH2).

All three had the RJ Nikon F/G to m43 adapter (bought here).

Lenses used (used & bought on ebay due to low budget): 2x Sigma 28-70mm f2.8 & 1 Sigma 50-150mm f2.8. All three for Nikon mount. The two 28-70mm lenses have apperture adjustment ring.

All three cams presented a problem focussing while zooming. Normally, with a camera and it's proper brand manual zoom lens (without adapter), you zoom in on a far point to adjust focus in order to get a sharp image when you zoom back. But unfortunately, I don't know why, when I use the setup described earlyer, everytime I use the zoom ring (in & out) the image gets out of focus. I checked with a camera store, the lenses, on Nikon cameras, are ok. The same goes with the Lumix bodies with Lumix lenses (tested with at 14-42 kit lens). So, what's left is only the RJ adapter.

So, what might cause this & how can I work this problem out ?

Here's a video exemple of the issue:

Thanks to answer

Does the FD to MFT come with tripod collar as well? Can that tripod collar be purchased separately?

So can these be fitted to the existing RJ adapters?

No, of course. Adapter is different and designed for collar.

@konjow

Right now.

New adapters look with tripod collar: